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How To Write A Lab Report | Step-by-Step Guide & Examples

Published on May 20, 2021 by Pritha Bhandari . Revised on July 23, 2023.

A lab report conveys the aim, methods, results, and conclusions of a scientific experiment. The main purpose of a lab report is to demonstrate your understanding of the scientific method by performing and evaluating a hands-on lab experiment. This type of assignment is usually shorter than a research paper .

Lab reports are commonly used in science, technology, engineering, and mathematics (STEM) fields. This article focuses on how to structure and write a lab report.

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Table of contents

Structuring a lab report, introduction, other interesting articles, frequently asked questions about lab reports.

The sections of a lab report can vary between scientific fields and course requirements, but they usually contain the purpose, methods, and findings of a lab experiment .

Each section of a lab report has its own purpose.

  • Title: expresses the topic of your study
  • Abstract : summarizes your research aims, methods, results, and conclusions
  • Introduction: establishes the context needed to understand the topic
  • Method: describes the materials and procedures used in the experiment
  • Results: reports all descriptive and inferential statistical analyses
  • Discussion: interprets and evaluates results and identifies limitations
  • Conclusion: sums up the main findings of your experiment
  • References: list of all sources cited using a specific style (e.g. APA )
  • Appendices : contains lengthy materials, procedures, tables or figures

Although most lab reports contain these sections, some sections can be omitted or combined with others. For example, some lab reports contain a brief section on research aims instead of an introduction, and a separate conclusion is not always required.

If you’re not sure, it’s best to check your lab report requirements with your instructor.

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Your title provides the first impression of your lab report – effective titles communicate the topic and/or the findings of your study in specific terms.

Create a title that directly conveys the main focus or purpose of your study. It doesn’t need to be creative or thought-provoking, but it should be informative.

  • The effects of varying nitrogen levels on tomato plant height.
  • Testing the universality of the McGurk effect.
  • Comparing the viscosity of common liquids found in kitchens.

An abstract condenses a lab report into a brief overview of about 150–300 words. It should provide readers with a compact version of the research aims, the methods and materials used, the main results, and the final conclusion.

Think of it as a way of giving readers a preview of your full lab report. Write the abstract last, in the past tense, after you’ve drafted all the other sections of your report, so you’ll be able to succinctly summarize each section.

To write a lab report abstract, use these guiding questions:

  • What is the wider context of your study?
  • What research question were you trying to answer?
  • How did you perform the experiment?
  • What did your results show?
  • How did you interpret your results?
  • What is the importance of your findings?

Nitrogen is a necessary nutrient for high quality plants. Tomatoes, one of the most consumed fruits worldwide, rely on nitrogen for healthy leaves and stems to grow fruit. This experiment tested whether nitrogen levels affected tomato plant height in a controlled setting. It was expected that higher levels of nitrogen fertilizer would yield taller tomato plants.

Levels of nitrogen fertilizer were varied between three groups of tomato plants. The control group did not receive any nitrogen fertilizer, while one experimental group received low levels of nitrogen fertilizer, and a second experimental group received high levels of nitrogen fertilizer. All plants were grown from seeds, and heights were measured 50 days into the experiment.

The effects of nitrogen levels on plant height were tested between groups using an ANOVA. The plants with the highest level of nitrogen fertilizer were the tallest, while the plants with low levels of nitrogen exceeded the control group plants in height. In line with expectations and previous findings, the effects of nitrogen levels on plant height were statistically significant. This study strengthens the importance of nitrogen for tomato plants.

Your lab report introduction should set the scene for your experiment. One way to write your introduction is with a funnel (an inverted triangle) structure:

  • Start with the broad, general research topic
  • Narrow your topic down your specific study focus
  • End with a clear research question

Begin by providing background information on your research topic and explaining why it’s important in a broad real-world or theoretical context. Describe relevant previous research on your topic and note how your study may confirm it or expand it, or fill a gap in the research field.

This lab experiment builds on previous research from Haque, Paul, and Sarker (2011), who demonstrated that tomato plant yield increased at higher levels of nitrogen. However, the present research focuses on plant height as a growth indicator and uses a lab-controlled setting instead.

Next, go into detail on the theoretical basis for your study and describe any directly relevant laws or equations that you’ll be using. State your main research aims and expectations by outlining your hypotheses .

Based on the importance of nitrogen for tomato plants, the primary hypothesis was that the plants with the high levels of nitrogen would grow the tallest. The secondary hypothesis was that plants with low levels of nitrogen would grow taller than plants with no nitrogen.

Your introduction doesn’t need to be long, but you may need to organize it into a few paragraphs or with subheadings such as “Research Context” or “Research Aims.”

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A lab report Method section details the steps you took to gather and analyze data. Give enough detail so that others can follow or evaluate your procedures. Write this section in the past tense. If you need to include any long lists of procedural steps or materials, place them in the Appendices section but refer to them in the text here.

You should describe your experimental design, your subjects, materials, and specific procedures used for data collection and analysis.

Experimental design

Briefly note whether your experiment is a within-subjects  or between-subjects design, and describe how your sample units were assigned to conditions if relevant.

A between-subjects design with three groups of tomato plants was used. The control group did not receive any nitrogen fertilizer. The first experimental group received a low level of nitrogen fertilizer, while the second experimental group received a high level of nitrogen fertilizer.

Describe human subjects in terms of demographic characteristics, and animal or plant subjects in terms of genetic background. Note the total number of subjects as well as the number of subjects per condition or per group. You should also state how you recruited subjects for your study.

List the equipment or materials you used to gather data and state the model names for any specialized equipment.

List of materials

35 Tomato seeds

15 plant pots (15 cm tall)

Light lamps (50,000 lux)

Nitrogen fertilizer

Measuring tape

Describe your experimental settings and conditions in detail. You can provide labelled diagrams or images of the exact set-up necessary for experimental equipment. State how extraneous variables were controlled through restriction or by fixing them at a certain level (e.g., keeping the lab at room temperature).

Light levels were fixed throughout the experiment, and the plants were exposed to 12 hours of light a day. Temperature was restricted to between 23 and 25℃. The pH and carbon levels of the soil were also held constant throughout the experiment as these variables could influence plant height. The plants were grown in rooms free of insects or other pests, and they were spaced out adequately.

Your experimental procedure should describe the exact steps you took to gather data in chronological order. You’ll need to provide enough information so that someone else can replicate your procedure, but you should also be concise. Place detailed information in the appendices where appropriate.

In a lab experiment, you’ll often closely follow a lab manual to gather data. Some instructors will allow you to simply reference the manual and state whether you changed any steps based on practical considerations. Other instructors may want you to rewrite the lab manual procedures as complete sentences in coherent paragraphs, while noting any changes to the steps that you applied in practice.

If you’re performing extensive data analysis, be sure to state your planned analysis methods as well. This includes the types of tests you’ll perform and any programs or software you’ll use for calculations (if relevant).

First, tomato seeds were sown in wooden flats containing soil about 2 cm below the surface. Each seed was kept 3-5 cm apart. The flats were covered to keep the soil moist until germination. The seedlings were removed and transplanted to pots 8 days later, with a maximum of 2 plants to a pot. Each pot was watered once a day to keep the soil moist.

The nitrogen fertilizer treatment was applied to the plant pots 12 days after transplantation. The control group received no treatment, while the first experimental group received a low concentration, and the second experimental group received a high concentration. There were 5 pots in each group, and each plant pot was labelled to indicate the group the plants belonged to.

50 days after the start of the experiment, plant height was measured for all plants. A measuring tape was used to record the length of the plant from ground level to the top of the tallest leaf.

In your results section, you should report the results of any statistical analysis procedures that you undertook. You should clearly state how the results of statistical tests support or refute your initial hypotheses.

The main results to report include:

  • any descriptive statistics
  • statistical test results
  • the significance of the test results
  • estimates of standard error or confidence intervals

The mean heights of the plants in the control group, low nitrogen group, and high nitrogen groups were 20.3, 25.1, and 29.6 cm respectively. A one-way ANOVA was applied to calculate the effect of nitrogen fertilizer level on plant height. The results demonstrated statistically significant ( p = .03) height differences between groups.

Next, post-hoc tests were performed to assess the primary and secondary hypotheses. In support of the primary hypothesis, the high nitrogen group plants were significantly taller than the low nitrogen group and the control group plants. Similarly, the results supported the secondary hypothesis: the low nitrogen plants were taller than the control group plants.

These results can be reported in the text or in tables and figures. Use text for highlighting a few key results, but present large sets of numbers in tables, or show relationships between variables with graphs.

You should also include sample calculations in the Results section for complex experiments. For each sample calculation, provide a brief description of what it does and use clear symbols. Present your raw data in the Appendices section and refer to it to highlight any outliers or trends.

The Discussion section will help demonstrate your understanding of the experimental process and your critical thinking skills.

In this section, you can:

  • Interpret your results
  • Compare your findings with your expectations
  • Identify any sources of experimental error
  • Explain any unexpected results
  • Suggest possible improvements for further studies

Interpreting your results involves clarifying how your results help you answer your main research question. Report whether your results support your hypotheses.

  • Did you measure what you sought out to measure?
  • Were your analysis procedures appropriate for this type of data?

Compare your findings with other research and explain any key differences in findings.

  • Are your results in line with those from previous studies or your classmates’ results? Why or why not?

An effective Discussion section will also highlight the strengths and limitations of a study.

  • Did you have high internal validity or reliability?
  • How did you establish these aspects of your study?

When describing limitations, use specific examples. For example, if random error contributed substantially to the measurements in your study, state the particular sources of error (e.g., imprecise apparatus) and explain ways to improve them.

The results support the hypothesis that nitrogen levels affect plant height, with increasing levels producing taller plants. These statistically significant results are taken together with previous research to support the importance of nitrogen as a nutrient for tomato plant growth.

However, unlike previous studies, this study focused on plant height as an indicator of plant growth in the present experiment. Importantly, plant height may not always reflect plant health or fruit yield, so measuring other indicators would have strengthened the study findings.

Another limitation of the study is the plant height measurement technique, as the measuring tape was not suitable for plants with extreme curvature. Future studies may focus on measuring plant height in different ways.

The main strengths of this study were the controls for extraneous variables, such as pH and carbon levels of the soil. All other factors that could affect plant height were tightly controlled to isolate the effects of nitrogen levels, resulting in high internal validity for this study.

Your conclusion should be the final section of your lab report. Here, you’ll summarize the findings of your experiment, with a brief overview of the strengths and limitations, and implications of your study for further research.

Some lab reports may omit a Conclusion section because it overlaps with the Discussion section, but you should check with your instructor before doing so.

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A lab report conveys the aim, methods, results, and conclusions of a scientific experiment . Lab reports are commonly assigned in science, technology, engineering, and mathematics (STEM) fields.

The purpose of a lab report is to demonstrate your understanding of the scientific method with a hands-on lab experiment. Course instructors will often provide you with an experimental design and procedure. Your task is to write up how you actually performed the experiment and evaluate the outcome.

In contrast, a research paper requires you to independently develop an original argument. It involves more in-depth research and interpretation of sources and data.

A lab report is usually shorter than a research paper.

The sections of a lab report can vary between scientific fields and course requirements, but it usually contains the following:

  • Abstract: summarizes your research aims, methods, results, and conclusions
  • References: list of all sources cited using a specific style (e.g. APA)
  • Appendices: contains lengthy materials, procedures, tables or figures

The results chapter or section simply and objectively reports what you found, without speculating on why you found these results. The discussion interprets the meaning of the results, puts them in context, and explains why they matter.

In qualitative research , results and discussion are sometimes combined. But in quantitative research , it’s considered important to separate the objective results from your interpretation of them.

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How to Write a Lab Report

Lab Reports Describe Your Experiment

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Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. If your instructor gives you an outline for how to write a lab report, use that. Some instructors require a lab report to be included in a lab notebook , while others will request a separate report. Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of the report.

A lab report is how you explain what you did in ​your experiment, what you learned, and what the results meant.

Lab Report Essentials

Not all lab reports have title pages, but if your instructor wants one, it would be a single page that states:​

  • The title of the experiment.
  • Your name and the names of any lab partners.
  • Your instructor's name.
  • The date the lab was performed or the date the report was submitted.

The title says what you did. It should be brief (aim for ten words or less) and describe the main point of the experiment or investigation. An example of a title would be: "Effects of Ultraviolet Light on Borax Crystal Growth Rate". If you can, begin your title using a keyword rather than an article like "The" or "A".

Introduction or Purpose

Usually, the introduction is one paragraph that explains the objectives or purpose of the lab. In one sentence, state the hypothesis. Sometimes an introduction may contain background information, briefly summarize how the experiment was performed, state the findings of the experiment, and list the conclusions of the investigation. Even if you don't write a whole introduction, you need to state the purpose of the experiment, or why you did it. This would be where you state your hypothesis .

List everything needed to complete your experiment.

Describe the steps you completed during your investigation. This is your procedure. Be sufficiently detailed that anyone could read this section and duplicate your experiment. Write it as if you were giving direction for someone else to do the lab. It may be helpful to provide a figure to diagram your experimental setup.

Numerical data obtained from your procedure usually presented as a table. Data encompasses what you recorded when you conducted the experiment. It's just the facts, not any interpretation of what they mean.

Describe in words what the data means. Sometimes the Results section is combined with the Discussion.

Discussion or Analysis

The Data section contains numbers; the Analysis section contains any calculations you made based on those numbers. This is where you interpret the data and determine whether or not a hypothesis was accepted. This is also where you would discuss any mistakes you might have made while conducting the investigation. You may wish to describe ways the study might have been improved.

Conclusions

Most of the time the conclusion is a single paragraph that sums up what happened in the experiment, whether your hypothesis was accepted or rejected, and what this means.

Figures and Graphs

Graphs and figures must both be labeled with a descriptive title. Label the axes on a graph, being sure to include units of measurement. The independent variable is on the X-axis, the dependent variable (the one you are measuring) is on the Y-axis. Be sure to refer to figures and graphs in the text of your report: the first figure is Figure 1, the second figure is Figure 2, etc.

If your research was based on someone else's work or if you cited facts that require documentation, then you should list these references.

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Lab Report Format: Step-by-Step Guide & Examples

Saul Mcleod, PhD

Editor-in-Chief for Simply Psychology

BSc (Hons) Psychology, MRes, PhD, University of Manchester

Saul Mcleod, Ph.D., is a qualified psychology teacher with over 18 years experience of working in further and higher education. He has been published in peer-reviewed journals, including the Journal of Clinical Psychology.

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Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.

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In psychology, a lab report outlines a study’s objectives, methods, results, discussion, and conclusions, ensuring clarity and adherence to APA (or relevant) formatting guidelines.

A typical lab report would include the following sections: title, abstract, introduction, method, results, and discussion.

The title page, abstract, references, and appendices are started on separate pages (subsections from the main body of the report are not). Use double-line spacing of text, font size 12, and include page numbers.

The report should have a thread of arguments linking the prediction in the introduction to the content of the discussion.

This must indicate what the study is about. It must include the variables under investigation. It should not be written as a question.

Title pages should be formatted in APA style .

The abstract provides a concise and comprehensive summary of a research report. Your style should be brief but not use note form. Look at examples in journal articles . It should aim to explain very briefly (about 150 words) the following:

  • Start with a one/two sentence summary, providing the aim and rationale for the study.
  • Describe participants and setting: who, when, where, how many, and what groups?
  • Describe the method: what design, what experimental treatment, what questionnaires, surveys, or tests were used.
  • Describe the major findings, including a mention of the statistics used and the significance levels, or simply one sentence summing up the outcome.
  • The final sentence(s) outline the study’s “contribution to knowledge” within the literature. What does it all mean? Mention the implications of your findings if appropriate.

The abstract comes at the beginning of your report but is written at the end (as it summarises information from all the other sections of the report).

Introduction

The purpose of the introduction is to explain where your hypothesis comes from (i.e., it should provide a rationale for your research study).

Ideally, the introduction should have a funnel structure: Start broad and then become more specific. The aims should not appear out of thin air; the preceding review of psychological literature should lead logically into the aims and hypotheses.

The funnel structure of the introducion to a lab report

  • Start with general theory, briefly introducing the topic. Define the important key terms.
  • Explain the theoretical framework.
  • Summarise and synthesize previous studies – What was the purpose? Who were the participants? What did they do? What did they find? What do these results mean? How do the results relate to the theoretical framework?
  • Rationale: How does the current study address a gap in the literature? Perhaps it overcomes a limitation of previous research.
  • Aims and hypothesis. Write a paragraph explaining what you plan to investigate and make a clear and concise prediction regarding the results you expect to find.

There should be a logical progression of ideas that aids the flow of the report. This means the studies outlined should lead logically to your aims and hypotheses.

Do be concise and selective, and avoid the temptation to include anything in case it is relevant (i.e., don’t write a shopping list of studies).

USE THE FOLLOWING SUBHEADINGS:

Participants

  • How many participants were recruited?
  • Say how you obtained your sample (e.g., opportunity sample).
  • Give relevant demographic details (e.g., gender, ethnicity, age range, mean age, and standard deviation).
  • State the experimental design .
  • What were the independent and dependent variables ? Make sure the independent variable is labeled and name the different conditions/levels.
  • For example, if gender is the independent variable label, then male and female are the levels/conditions/groups.
  • How were the IV and DV operationalized?
  • Identify any controls used, e.g., counterbalancing and control of extraneous variables.
  • List all the materials and measures (e.g., what was the title of the questionnaire? Was it adapted from a study?).
  • You do not need to include wholesale replication of materials – instead, include a ‘sensible’ (illustrate) level of detail. For example, give examples of questionnaire items.
  • Include the reliability (e.g., alpha values) for the measure(s).
  • Describe the precise procedure you followed when conducting your research, i.e., exactly what you did.
  • Describe in sufficient detail to allow for replication of findings.
  • Be concise in your description and omit extraneous/trivial details, e.g., you don’t need to include details regarding instructions, debrief, record sheets, etc.
  • Assume the reader has no knowledge of what you did and ensure that he/she can replicate (i.e., copy) your study exactly by what you write in this section.
  • Write in the past tense.
  • Don’t justify or explain in the Method (e.g., why you chose a particular sampling method); just report what you did.
  • Only give enough detail for someone to replicate the experiment – be concise in your writing.
  • The results section of a paper usually presents descriptive statistics followed by inferential statistics.
  • Report the means, standard deviations, and 95% confidence intervals (CIs) for each IV level. If you have four to 20 numbers to present, a well-presented table is best, APA style.
  • Name the statistical test being used.
  • Report appropriate statistics (e.g., t-scores, p values ).
  • Report the magnitude (e.g., are the results significant or not?) as well as the direction of the results (e.g., which group performed better?).
  • It is optional to report the effect size (this does not appear on the SPSS output).
  • Avoid interpreting the results (save this for the discussion).
  • Make sure the results are presented clearly and concisely. A table can be used to display descriptive statistics if this makes the data easier to understand.
  • DO NOT include any raw data.
  • Follow APA style.

Use APA Style

  • Numbers reported to 2 d.p. (incl. 0 before the decimal if 1.00, e.g., “0.51”). The exceptions to this rule: Numbers which can never exceed 1.0 (e.g., p -values, r-values): report to 3 d.p. and do not include 0 before the decimal place, e.g., “.001”.
  • Percentages and degrees of freedom: report as whole numbers.
  • Statistical symbols that are not Greek letters should be italicized (e.g., M , SD , t , X 2 , F , p , d ).
  • Include spaces on either side of the equals sign.
  • When reporting 95%, CIs (confidence intervals), upper and lower limits are given inside square brackets, e.g., “95% CI [73.37, 102.23]”
  • Outline your findings in plain English (avoid statistical jargon) and relate your results to your hypothesis, e.g., is it supported or rejected?
  • Compare your results to background materials from the introduction section. Are your results similar or different? Discuss why/why not.
  • How confident can we be in the results? Acknowledge limitations, but only if they can explain the result obtained. If the study has found a reliable effect, be very careful suggesting limitations as you are doubting your results. Unless you can think of any c onfounding variable that can explain the results instead of the IV, it would be advisable to leave the section out.
  • Suggest constructive ways to improve your study if appropriate.
  • What are the implications of your findings? Say what your findings mean for how people behave in the real world.
  • Suggest an idea for further research triggered by your study, something in the same area but not simply an improved version of yours. Perhaps you could base this on a limitation of your study.
  • Concluding paragraph – Finish with a statement of your findings and the key points of the discussion (e.g., interpretation and implications) in no more than 3 or 4 sentences.

Reference Page

The reference section lists all the sources cited in the essay (alphabetically). It is not a bibliography (a list of the books you used).

In simple terms, every time you refer to a psychologist’s name (and date), you need to reference the original source of information.

If you have been using textbooks this is easy as the references are usually at the back of the book and you can just copy them down. If you have been using websites then you may have a problem as they might not provide a reference section for you to copy.

References need to be set out APA style :

Author, A. A. (year). Title of work . Location: Publisher.

Journal Articles

Author, A. A., Author, B. B., & Author, C. C. (year). Article title. Journal Title, volume number (issue number), page numbers

A simple way to write your reference section is to use Google scholar . Just type the name and date of the psychologist in the search box and click on the “cite” link.

google scholar search results

Next, copy and paste the APA reference into the reference section of your essay.

apa reference

Once again, remember that references need to be in alphabetical order according to surname.

Psychology Lab Report Example

Quantitative paper template.

Quantitative professional paper template: Adapted from “Fake News, Fast and Slow: Deliberation Reduces Belief in False (but Not True) News Headlines,” by B. Bago, D. G. Rand, and G. Pennycook, 2020,  Journal of Experimental Psychology: General ,  149 (8), pp. 1608–1613 ( https://doi.org/10.1037/xge0000729 ). Copyright 2020 by the American Psychological Association.

Qualitative paper template

Qualitative professional paper template: Adapted from “‘My Smartphone Is an Extension of Myself’: A Holistic Qualitative Exploration of the Impact of Using a Smartphone,” by L. J. Harkin and D. Kuss, 2020,  Psychology of Popular Media ,  10 (1), pp. 28–38 ( https://doi.org/10.1037/ppm0000278 ). Copyright 2020 by the American Psychological Association.

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Writing Lab Reports

Writing lab reports follows a straightforward and structured procedure. It is important to recognize that each part of a lab report is important, so take the time to complete each carefully. A lab report is broken down into eight sections: title, abstract, introduction, methods and materials, results, discussion, conclusion, and references. 

  • Ex: "Determining the Free Chlorine Content of Pool Water"
  • Abstracts are a summary of the experiment as a whole and should familiarize the reader with the purpose of the research. 
  • Abstracts will always be written last, even though they are the first paragraph of a lab report. 
  • Not all lab reports will require an abstract. However, they are often included in upper-level lab reports and should be studied carefully. 
  • Why was the research done or experiment conducted?
  • What problem is being addressed?
  • What results were found?
  • What are the meaning of the results?
  • How is the problem better understood now than before, if at all?

Introduction

  • The introduction of a lab report discusses the problem being studied and other theory that is relevant to understanding the findings. 
  • The hypothesis of the experiment and the motivation for the research are stated in this section. 
  • Write the introduction in your own words. Try not to copy from a lab manual or other guidelines. Instead, show comprehension of the experiment by briefly explaining the problem.

Methods and Materials

  • Ex: pipette, graduated cylinder, 1.13mg of Na, 0.67mg Ag
  • List the steps taken as they actually happened during the experiment, not as they were supposed to happen. 
  • If written correctly, another researcher should be able to duplicate the experiment and get the same or very similar results. 
  • The results show the data that was collected or found during the experiment. 
  • Explain in words the data that was collected.
  • Tables should be labeled numerically, as "Table 1", "Table 2", etc. Other figures should be labeled numerically as "Figure 1", "Figure 2", etc. 
  • Calculations to understand the data can also be presented in the results. 
  • The discussion section is one of the most important parts of the lab report. It analyzes the results of the experiment and is a discussion of the data. 
  • If any results are unexpected, explain why they are unexpected and how they did or did not effect the data obtained. 
  • Analyze the strengths and weaknesses of the design of the experiment and compare your results to other similar experiments.
  • If there are any experimental errors, analyze them.
  • Explain your results and discuss them using relevant terms and theories.
  • What do the results indicate?
  • What is the significance of the results?
  • Are there any gaps in knowledge?
  • Are there any new questions that have been raised?
  • The conclusion is a summation of the experiment. It should clearly and concisely state what was learned and its importance.
  • If there is future work that needs to be done, it can be explained in the conclusion.
  • If using any outside sources to support a claim or explain background information, those sources must be cited in the references section of the lab report. 
  • In the event that no outside sources are used, the references section may be left out. 

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How to Write a Practical/Laboratory Report Writing Centre Learning Guide

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The introduction gives the reader background information about the topic of the practical report, and places your report in the context of that background information. You should begin by summarizing what is already known about the topic. Because of this, the introduction will often need to include references. The introduction should then highlight how your report relates to the background information, e.g., through investigating a research gap, examining the physical properties of a rock or demonstrating a scientific law. The introduction should culminate in a clear statement of the aim of the experiment.

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reuben beattie

list the procedures on how to write a practical report

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A laboratory report has three main functions: (1) To provide a record of the experiments and raw data included in the report, (2) To provide sufficient information to reproduce or extend the data, and (3) To analyze the data, present conclusions and make recommendations based on the experimental work. General Comments: The single most important requirement for a laboratory report is clarity. Imagine that your audience is one of your classmates who missed that experiment. If you are using a word processor for your lab report, then use the spelling and grammar checkers. The grammar check can be annoying because often technical sentences are wordy and complex, but it will help you avoid using too many passive sentences. In general, passive sentences are less understandable. However, grammar check will not assess clarity, and it will ignore simple errors. (I do not doubt there are still mistakes in this document I have run it through spelling and grammar checks.) Many technical writers prefer to write sentences with passive verbs. A simple example: "The spring constant k was found from the slope to be 3.02 N/m." If you run this sentence through the grammar check, it will tell you that "was found" is a verb in the passive voice. To change this to an active voice you could write: "The spring constant k is the slope, 3.02 N/m." Not every sentence has to be in an active voice. What you want is a report that is readable. Lab Report Structure: I. Cover Sheet: This page has the course number and assigned lab section, the title of the experiment, your name, your lab partner's names, the date that the lab was performed and your TA's name. II. Abstract: The purpose of an abstract in a scientific paper is to help a reader decide if your paper is of interest to him/her. (This section is the executive summary in a corporation or government report; it is often the only section that a manager reads.) The abstract should be able to stand by itself, and it should be brief. Generally, it consists of three parts which answer these questions: What did you do?-A statement of the purpose of the experiment, a concise description of the experiment and physics principles investigated. What were your results?-Highlight the most significant results of the experiment. What do these results tell you?-Depending on the type of experiment, this is conclusions and implications of the results or it may be lessons learned form the experiment. Write the abstract after all the other sections are completed. (You need to know everything in the report before you can write a summary of it.) III.

Cutilioux Rukhshan

Mremas Juvenaly

INTRODUCTION Laboratory instructors strive continuously to improve the writing of undergraduate lab reports, and success requires a communal effort by several instructors and many students. To allow coordinated instruction, the faculty must define the learning objectives and agree on a common instructional strategy. Students can then be guided in a consistent fashion toward proficient technical writing. This guidance should include a manual incorporating a uniform writing standard that represents industrial and academic practice. Instruction can then refer to a single consensus standard. Consistent grading and feedback based on this standard can then reinforce the instruction. However, the instruction cannot be planned, nor the writing standard be developed without a practical objective. The practical objective is the kind of technical writing and production quality that fits the needs of the curriculum and professional practice and that can be expected from undergraduates. The objective is defined in terms of representative report types and the corresponding contents, formats, and production qualities. Without such a common and well defined objective, successive instructors will waste time and frustrate the students by presenting and requiring report types and production qualities that differ only marginally from the consensus standards while generating continual confusion.

sonu sharma

Jane Moodie

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rizky amelia

is the summarization of the laboratory report. In practice, abstract must consist of no more than 100 words. It highlights the main purpose of the study and the findings. Usually this starts with the methods followed by the purpose, results, important observations, remarkable findings and finally conclusion. For the format not to change, overwrite on this document and print this in A4 size paper. If not possible to print this in A4 size paper, set the settings in printer properties and select letter size paper. Keywords may be check on https://publishing.aip.org/publishing/pacs/pacs-alphabetical-index for correct indexing of keywords. See example below.

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How to write a practical report.

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A practical report is usually written by researchers to communicate to others what you did, why, how you did it, your findings and what you think the findings mean. Readers will want to get their questions answered quickly, so following a set format is critical.

Outline your report in the proper format. The commonly used format for Practical Reports goes like the following:

Cover page Synopsis/abstract Aim and introduction Methods Results Discussion Conclusion Appendix References

The synopsis will include a summary of the main ideas. The aim and introduction explains what you did and why. Methods describes how you did it. Results conveys only the findings, while Discussion is for your opinion about the results and their application to theory. The conclusion summarizes the findings as they relate to the aim.

When you go to outline, write down the basic ideas and points you want to include in each section. This will save you time when you begin to write.

Write the report in an appropriate style with all pertinent information clearly presented. The style of your writing should be such that you assume the reader is intelligent, but unknowledgeable about your study or field. Academic writing often uses more complex language and vocabulary than other writing. The best way to get a feel for this is to read a few other similar reports in your field so you know what your readers will expect.

Ensure that the reader of your report believes your findings matter. Avoid dwelling on the failings of your experiment or the reader will wonder why you bothered to write the report in the first place. Don't overstate your findings, but make sure you don't make it seem like you just wasted a lot of time.

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Chapter 11: Presenting Your Research

Writing a Research Report in American Psychological Association (APA) Style

Learning Objectives

  • Identify the major sections of an APA-style research report and the basic contents of each section.
  • Plan and write an effective APA-style research report.

In this section, we look at how to write an APA-style empirical research report , an article that presents the results of one or more new studies. Recall that the standard sections of an empirical research report provide a kind of outline. Here we consider each of these sections in detail, including what information it contains, how that information is formatted and organized, and tips for writing each section. At the end of this section is a sample APA-style research report that illustrates many of these principles.

Sections of a Research Report

Title page and abstract.

An APA-style research report begins with a  title page . The title is centred in the upper half of the page, with each important word capitalized. The title should clearly and concisely (in about 12 words or fewer) communicate the primary variables and research questions. This sometimes requires a main title followed by a subtitle that elaborates on the main title, in which case the main title and subtitle are separated by a colon. Here are some titles from recent issues of professional journals published by the American Psychological Association.

  • Sex Differences in Coping Styles and Implications for Depressed Mood
  • Effects of Aging and Divided Attention on Memory for Items and Their Contexts
  • Computer-Assisted Cognitive Behavioural Therapy for Child Anxiety: Results of a Randomized Clinical Trial
  • Virtual Driving and Risk Taking: Do Racing Games Increase Risk-Taking Cognitions, Affect, and Behaviour?

Below the title are the authors’ names and, on the next line, their institutional affiliation—the university or other institution where the authors worked when they conducted the research. As we have already seen, the authors are listed in an order that reflects their contribution to the research. When multiple authors have made equal contributions to the research, they often list their names alphabetically or in a randomly determined order.

In some areas of psychology, the titles of many empirical research reports are informal in a way that is perhaps best described as “cute.” They usually take the form of a play on words or a well-known expression that relates to the topic under study. Here are some examples from recent issues of the Journal Psychological Science .

  • “Smells Like Clean Spirit: Nonconscious Effects of Scent on Cognition and Behavior”
  • “Time Crawls: The Temporal Resolution of Infants’ Visual Attention”
  • “Scent of a Woman: Men’s Testosterone Responses to Olfactory Ovulation Cues”
  • “Apocalypse Soon?: Dire Messages Reduce Belief in Global Warming by Contradicting Just-World Beliefs”
  • “Serial vs. Parallel Processing: Sometimes They Look Like Tweedledum and Tweedledee but They Can (and Should) Be Distinguished”
  • “How Do I Love Thee? Let Me Count the Words: The Social Effects of Expressive Writing”

Individual researchers differ quite a bit in their preference for such titles. Some use them regularly, while others never use them. What might be some of the pros and cons of using cute article titles?

For articles that are being submitted for publication, the title page also includes an author note that lists the authors’ full institutional affiliations, any acknowledgments the authors wish to make to agencies that funded the research or to colleagues who commented on it, and contact information for the authors. For student papers that are not being submitted for publication—including theses—author notes are generally not necessary.

The  abstract  is a summary of the study. It is the second page of the manuscript and is headed with the word  Abstract . The first line is not indented. The abstract presents the research question, a summary of the method, the basic results, and the most important conclusions. Because the abstract is usually limited to about 200 words, it can be a challenge to write a good one.

Introduction

The  introduction  begins on the third page of the manuscript. The heading at the top of this page is the full title of the manuscript, with each important word capitalized as on the title page. The introduction includes three distinct subsections, although these are typically not identified by separate headings. The opening introduces the research question and explains why it is interesting, the literature review discusses relevant previous research, and the closing restates the research question and comments on the method used to answer it.

The Opening

The  opening , which is usually a paragraph or two in length, introduces the research question and explains why it is interesting. To capture the reader’s attention, researcher Daryl Bem recommends starting with general observations about the topic under study, expressed in ordinary language (not technical jargon)—observations that are about people and their behaviour (not about researchers or their research; Bem, 2003 [1] ). Concrete examples are often very useful here. According to Bem, this would be a poor way to begin a research report:

Festinger’s theory of cognitive dissonance received a great deal of attention during the latter part of the 20th century (p. 191)

The following would be much better:

The individual who holds two beliefs that are inconsistent with one another may feel uncomfortable. For example, the person who knows that he or she enjoys smoking but believes it to be unhealthy may experience discomfort arising from the inconsistency or disharmony between these two thoughts or cognitions. This feeling of discomfort was called cognitive dissonance by social psychologist Leon Festinger (1957), who suggested that individuals will be motivated to remove this dissonance in whatever way they can (p. 191).

After capturing the reader’s attention, the opening should go on to introduce the research question and explain why it is interesting. Will the answer fill a gap in the literature? Will it provide a test of an important theory? Does it have practical implications? Giving readers a clear sense of what the research is about and why they should care about it will motivate them to continue reading the literature review—and will help them make sense of it.

Breaking the Rules

Researcher Larry Jacoby reported several studies showing that a word that people see or hear repeatedly can seem more familiar even when they do not recall the repetitions—and that this tendency is especially pronounced among older adults. He opened his article with the following humourous anecdote:

A friend whose mother is suffering symptoms of Alzheimer’s disease (AD) tells the story of taking her mother to visit a nursing home, preliminary to her mother’s moving there. During an orientation meeting at the nursing home, the rules and regulations were explained, one of which regarded the dining room. The dining room was described as similar to a fine restaurant except that tipping was not required. The absence of tipping was a central theme in the orientation lecture, mentioned frequently to emphasize the quality of care along with the advantages of having paid in advance. At the end of the meeting, the friend’s mother was asked whether she had any questions. She replied that she only had one question: “Should I tip?” (Jacoby, 1999, p. 3)

Although both humour and personal anecdotes are generally discouraged in APA-style writing, this example is a highly effective way to start because it both engages the reader and provides an excellent real-world example of the topic under study.

The Literature Review

Immediately after the opening comes the  literature review , which describes relevant previous research on the topic and can be anywhere from several paragraphs to several pages in length. However, the literature review is not simply a list of past studies. Instead, it constitutes a kind of argument for why the research question is worth addressing. By the end of the literature review, readers should be convinced that the research question makes sense and that the present study is a logical next step in the ongoing research process.

Like any effective argument, the literature review must have some kind of structure. For example, it might begin by describing a phenomenon in a general way along with several studies that demonstrate it, then describing two or more competing theories of the phenomenon, and finally presenting a hypothesis to test one or more of the theories. Or it might describe one phenomenon, then describe another phenomenon that seems inconsistent with the first one, then propose a theory that resolves the inconsistency, and finally present a hypothesis to test that theory. In applied research, it might describe a phenomenon or theory, then describe how that phenomenon or theory applies to some important real-world situation, and finally suggest a way to test whether it does, in fact, apply to that situation.

Looking at the literature review in this way emphasizes a few things. First, it is extremely important to start with an outline of the main points that you want to make, organized in the order that you want to make them. The basic structure of your argument, then, should be apparent from the outline itself. Second, it is important to emphasize the structure of your argument in your writing. One way to do this is to begin the literature review by summarizing your argument even before you begin to make it. “In this article, I will describe two apparently contradictory phenomena, present a new theory that has the potential to resolve the apparent contradiction, and finally present a novel hypothesis to test the theory.” Another way is to open each paragraph with a sentence that summarizes the main point of the paragraph and links it to the preceding points. These opening sentences provide the “transitions” that many beginning researchers have difficulty with. Instead of beginning a paragraph by launching into a description of a previous study, such as “Williams (2004) found that…,” it is better to start by indicating something about why you are describing this particular study. Here are some simple examples:

Another example of this phenomenon comes from the work of Williams (2004).

Williams (2004) offers one explanation of this phenomenon.

An alternative perspective has been provided by Williams (2004).

We used a method based on the one used by Williams (2004).

Finally, remember that your goal is to construct an argument for why your research question is interesting and worth addressing—not necessarily why your favourite answer to it is correct. In other words, your literature review must be balanced. If you want to emphasize the generality of a phenomenon, then of course you should discuss various studies that have demonstrated it. However, if there are other studies that have failed to demonstrate it, you should discuss them too. Or if you are proposing a new theory, then of course you should discuss findings that are consistent with that theory. However, if there are other findings that are inconsistent with it, again, you should discuss them too. It is acceptable to argue that the  balance  of the research supports the existence of a phenomenon or is consistent with a theory (and that is usually the best that researchers in psychology can hope for), but it is not acceptable to  ignore contradictory evidence. Besides, a large part of what makes a research question interesting is uncertainty about its answer.

The Closing

The  closing  of the introduction—typically the final paragraph or two—usually includes two important elements. The first is a clear statement of the main research question or hypothesis. This statement tends to be more formal and precise than in the opening and is often expressed in terms of operational definitions of the key variables. The second is a brief overview of the method and some comment on its appropriateness. Here, for example, is how Darley and Latané (1968) [2] concluded the introduction to their classic article on the bystander effect:

These considerations lead to the hypothesis that the more bystanders to an emergency, the less likely, or the more slowly, any one bystander will intervene to provide aid. To test this proposition it would be necessary to create a situation in which a realistic “emergency” could plausibly occur. Each subject should also be blocked from communicating with others to prevent his getting information about their behaviour during the emergency. Finally, the experimental situation should allow for the assessment of the speed and frequency of the subjects’ reaction to the emergency. The experiment reported below attempted to fulfill these conditions. (p. 378)

Thus the introduction leads smoothly into the next major section of the article—the method section.

The  method section  is where you describe how you conducted your study. An important principle for writing a method section is that it should be clear and detailed enough that other researchers could replicate the study by following your “recipe.” This means that it must describe all the important elements of the study—basic demographic characteristics of the participants, how they were recruited, whether they were randomly assigned, how the variables were manipulated or measured, how counterbalancing was accomplished, and so on. At the same time, it should avoid irrelevant details such as the fact that the study was conducted in Classroom 37B of the Industrial Technology Building or that the questionnaire was double-sided and completed using pencils.

The method section begins immediately after the introduction ends with the heading “Method” (not “Methods”) centred on the page. Immediately after this is the subheading “Participants,” left justified and in italics. The participants subsection indicates how many participants there were, the number of women and men, some indication of their age, other demographics that may be relevant to the study, and how they were recruited, including any incentives given for participation.

Three ways of organizing an APA-style method. Long description available.

After the participants section, the structure can vary a bit. Figure 11.1 shows three common approaches. In the first, the participants section is followed by a design and procedure subsection, which describes the rest of the method. This works well for methods that are relatively simple and can be described adequately in a few paragraphs. In the second approach, the participants section is followed by separate design and procedure subsections. This works well when both the design and the procedure are relatively complicated and each requires multiple paragraphs.

What is the difference between design and procedure? The design of a study is its overall structure. What were the independent and dependent variables? Was the independent variable manipulated, and if so, was it manipulated between or within subjects? How were the variables operationally defined? The procedure is how the study was carried out. It often works well to describe the procedure in terms of what the participants did rather than what the researchers did. For example, the participants gave their informed consent, read a set of instructions, completed a block of four practice trials, completed a block of 20 test trials, completed two questionnaires, and were debriefed and excused.

In the third basic way to organize a method section, the participants subsection is followed by a materials subsection before the design and procedure subsections. This works well when there are complicated materials to describe. This might mean multiple questionnaires, written vignettes that participants read and respond to, perceptual stimuli, and so on. The heading of this subsection can be modified to reflect its content. Instead of “Materials,” it can be “Questionnaires,” “Stimuli,” and so on.

The  results section  is where you present the main results of the study, including the results of the statistical analyses. Although it does not include the raw data—individual participants’ responses or scores—researchers should save their raw data and make them available to other researchers who request them. Several journals now encourage the open sharing of raw data online.

Although there are no standard subsections, it is still important for the results section to be logically organized. Typically it begins with certain preliminary issues. One is whether any participants or responses were excluded from the analyses and why. The rationale for excluding data should be described clearly so that other researchers can decide whether it is appropriate. A second preliminary issue is how multiple responses were combined to produce the primary variables in the analyses. For example, if participants rated the attractiveness of 20 stimulus people, you might have to explain that you began by computing the mean attractiveness rating for each participant. Or if they recalled as many items as they could from study list of 20 words, did you count the number correctly recalled, compute the percentage correctly recalled, or perhaps compute the number correct minus the number incorrect? A third preliminary issue is the reliability of the measures. This is where you would present test-retest correlations, Cronbach’s α, or other statistics to show that the measures are consistent across time and across items. A final preliminary issue is whether the manipulation was successful. This is where you would report the results of any manipulation checks.

The results section should then tackle the primary research questions, one at a time. Again, there should be a clear organization. One approach would be to answer the most general questions and then proceed to answer more specific ones. Another would be to answer the main question first and then to answer secondary ones. Regardless, Bem (2003) [3] suggests the following basic structure for discussing each new result:

  • Remind the reader of the research question.
  • Give the answer to the research question in words.
  • Present the relevant statistics.
  • Qualify the answer if necessary.
  • Summarize the result.

Notice that only Step 3 necessarily involves numbers. The rest of the steps involve presenting the research question and the answer to it in words. In fact, the basic results should be clear even to a reader who skips over the numbers.

The  discussion  is the last major section of the research report. Discussions usually consist of some combination of the following elements:

  • Summary of the research
  • Theoretical implications
  • Practical implications
  • Limitations
  • Suggestions for future research

The discussion typically begins with a summary of the study that provides a clear answer to the research question. In a short report with a single study, this might require no more than a sentence. In a longer report with multiple studies, it might require a paragraph or even two. The summary is often followed by a discussion of the theoretical implications of the research. Do the results provide support for any existing theories? If not, how  can  they be explained? Although you do not have to provide a definitive explanation or detailed theory for your results, you at least need to outline one or more possible explanations. In applied research—and often in basic research—there is also some discussion of the practical implications of the research. How can the results be used, and by whom, to accomplish some real-world goal?

The theoretical and practical implications are often followed by a discussion of the study’s limitations. Perhaps there are problems with its internal or external validity. Perhaps the manipulation was not very effective or the measures not very reliable. Perhaps there is some evidence that participants did not fully understand their task or that they were suspicious of the intent of the researchers. Now is the time to discuss these issues and how they might have affected the results. But do not overdo it. All studies have limitations, and most readers will understand that a different sample or different measures might have produced different results. Unless there is good reason to think they  would have, however, there is no reason to mention these routine issues. Instead, pick two or three limitations that seem like they could have influenced the results, explain how they could have influenced the results, and suggest ways to deal with them.

Most discussions end with some suggestions for future research. If the study did not satisfactorily answer the original research question, what will it take to do so? What  new  research questions has the study raised? This part of the discussion, however, is not just a list of new questions. It is a discussion of two or three of the most important unresolved issues. This means identifying and clarifying each question, suggesting some alternative answers, and even suggesting ways they could be studied.

Finally, some researchers are quite good at ending their articles with a sweeping or thought-provoking conclusion. Darley and Latané (1968) [4] , for example, ended their article on the bystander effect by discussing the idea that whether people help others may depend more on the situation than on their personalities. Their final sentence is, “If people understand the situational forces that can make them hesitate to intervene, they may better overcome them” (p. 383). However, this kind of ending can be difficult to pull off. It can sound overreaching or just banal and end up detracting from the overall impact of the article. It is often better simply to end when you have made your final point (although you should avoid ending on a limitation).

The references section begins on a new page with the heading “References” centred at the top of the page. All references cited in the text are then listed in the format presented earlier. They are listed alphabetically by the last name of the first author. If two sources have the same first author, they are listed alphabetically by the last name of the second author. If all the authors are the same, then they are listed chronologically by the year of publication. Everything in the reference list is double-spaced both within and between references.

Appendices, Tables, and Figures

Appendices, tables, and figures come after the references. An  appendix  is appropriate for supplemental material that would interrupt the flow of the research report if it were presented within any of the major sections. An appendix could be used to present lists of stimulus words, questionnaire items, detailed descriptions of special equipment or unusual statistical analyses, or references to the studies that are included in a meta-analysis. Each appendix begins on a new page. If there is only one, the heading is “Appendix,” centred at the top of the page. If there is more than one, the headings are “Appendix A,” “Appendix B,” and so on, and they appear in the order they were first mentioned in the text of the report.

After any appendices come tables and then figures. Tables and figures are both used to present results. Figures can also be used to illustrate theories (e.g., in the form of a flowchart), display stimuli, outline procedures, and present many other kinds of information. Each table and figure appears on its own page. Tables are numbered in the order that they are first mentioned in the text (“Table 1,” “Table 2,” and so on). Figures are numbered the same way (“Figure 1,” “Figure 2,” and so on). A brief explanatory title, with the important words capitalized, appears above each table. Each figure is given a brief explanatory caption, where (aside from proper nouns or names) only the first word of each sentence is capitalized. More details on preparing APA-style tables and figures are presented later in the book.

Sample APA-Style Research Report

Figures 11.2, 11.3, 11.4, and 11.5 show some sample pages from an APA-style empirical research report originally written by undergraduate student Tomoe Suyama at California State University, Fresno. The main purpose of these figures is to illustrate the basic organization and formatting of an APA-style empirical research report, although many high-level and low-level style conventions can be seen here too.

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Key Takeaways

  • An APA-style empirical research report consists of several standard sections. The main ones are the abstract, introduction, method, results, discussion, and references.
  • The introduction consists of an opening that presents the research question, a literature review that describes previous research on the topic, and a closing that restates the research question and comments on the method. The literature review constitutes an argument for why the current study is worth doing.
  • The method section describes the method in enough detail that another researcher could replicate the study. At a minimum, it consists of a participants subsection and a design and procedure subsection.
  • The results section describes the results in an organized fashion. Each primary result is presented in terms of statistical results but also explained in words.
  • The discussion typically summarizes the study, discusses theoretical and practical implications and limitations of the study, and offers suggestions for further research.
  • Practice: Look through an issue of a general interest professional journal (e.g.,  Psychological Science ). Read the opening of the first five articles and rate the effectiveness of each one from 1 ( very ineffective ) to 5 ( very effective ). Write a sentence or two explaining each rating.
  • Practice: Find a recent article in a professional journal and identify where the opening, literature review, and closing of the introduction begin and end.
  • Practice: Find a recent article in a professional journal and highlight in a different colour each of the following elements in the discussion: summary, theoretical implications, practical implications, limitations, and suggestions for future research.

Long Descriptions

Figure 11.1 long description: Table showing three ways of organizing an APA-style method section.

In the simple method, there are two subheadings: “Participants” (which might begin “The participants were…”) and “Design and procedure” (which might begin “There were three conditions…”).

In the typical method, there are three subheadings: “Participants” (“The participants were…”), “Design” (“There were three conditions…”), and “Procedure” (“Participants viewed each stimulus on the computer screen…”).

In the complex method, there are four subheadings: “Participants” (“The participants were…”), “Materials” (“The stimuli were…”), “Design” (“There were three conditions…”), and “Procedure” (“Participants viewed each stimulus on the computer screen…”). [Return to Figure 11.1]

  • Bem, D. J. (2003). Writing the empirical journal article. In J. M. Darley, M. P. Zanna, & H. R. Roediger III (Eds.),  The compleat academic: A practical guide for the beginning social scientist  (2nd ed.). Washington, DC: American Psychological Association. ↵
  • Darley, J. M., & Latané, B. (1968). Bystander intervention in emergencies: Diffusion of responsibility.  Journal of Personality and Social Psychology, 4 , 377–383. ↵

A type of research article which describes one or more new empirical studies conducted by the authors.

The page at the beginning of an APA-style research report containing the title of the article, the authors’ names, and their institutional affiliation.

A summary of a research study.

The third page of a manuscript containing the research question, the literature review, and comments about how to answer the research question.

An introduction to the research question and explanation for why this question is interesting.

A description of relevant previous research on the topic being discusses and an argument for why the research is worth addressing.

The end of the introduction, where the research question is reiterated and the method is commented upon.

The section of a research report where the method used to conduct the study is described.

The main results of the study, including the results from statistical analyses, are presented in a research article.

Section of a research report that summarizes the study's results and interprets them by referring back to the study's theoretical background.

Part of a research report which contains supplemental material.

Research Methods in Psychology - 2nd Canadian Edition by Paul C. Price, Rajiv Jhangiani, & I-Chant A. Chiang is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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How to Write a Biology Lab Report

Last Updated: February 17, 2023 Fact Checked

This article was co-authored by Michael Simpson, PhD . Dr. Michael Simpson (Mike) is a Registered Professional Biologist in British Columbia, Canada. He has over 20 years of experience in ecology research and professional practice in Britain and North America, with an emphasis on plants and biological diversity. Mike also specializes in science communication and providing education and technical support for ecology projects. Mike received a BSc with honors in Ecology and an MA in Society, Science, and Nature from The University of Lancaster in England as well as a Ph.D. from the University of Alberta. He has worked in British, North American, and South American ecosystems, and with First Nations communities, non-profits, government, academia, and industry. There are 8 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 203,467 times.

Need to write a lab report for your biology class? A biology lab report summarizes your experiment and findings in an organized way. Once you know all of the sections to include, it's easy to put one together. Keep reading to learn exactly how to write a biology report step by step.

Creating Your Title Page

Step 1 Create a title that is brief but concise.

  • A good example for a title would be: "Effects of various chemicals on the growth of Escherichia coli." [2] X Research source

Step 2 Be sure to include your name on the title page.

Writing Your Introduction

Step 1 State the problem.

  • Define terminology. If your report uses any specific terminology or jargon, explain it in the introduction.
  • Use the appropriate vocabulary to explain what you are doing. You are likely trying to test, document, or describe something. You cannot prove, verify, or demonstrate the truth about something as this is not possible within the realm of science. Make sure your word choices reflect this within your report.

Step 4 Summarize with an...

Listing Material and Methods

Step 1 List all of your materials used in the lab.

Explaining Results

Step 1 Describe your results.

Drawing a Conclusion

Step 1 Include a summary of the data.

  • Accepting or rejecting your hypothesis can be done easily by stating "Our hypothesis was accepted/rejected because..." Then continue with your explanation.

Step 4 Aim for 1-2 pages for the conclusion.

Crediting References

Step 1 List your citations.

  • For example: Frantzis, A. 1998. Does acoustic testing strand whales? Nature 392(6671), 29.
  • Cite the lab manual where relevant.

Step 3 Paraphrase ideas from others in your report.

  • Paraphrasing can be confusing. You can't just change a few words. For example, "Most professors do not want to see quotations in a lab report," can be paraphrased as "Using quotations to quote sources for your lab report is frowned upon by many professors." The idea is still clear, though the sentence is unique and original.

Formatting Your Report

Step 1 Use a reasonable font.

  • Introduction
  • Methods and Materials

Expert Q&A

Michael Simpson, PhD

  • Use a notebook to take notes during the experiment, this might come handy when you are writing the report. Thanks Helpful 0 Not Helpful 0
  • Never include or attach raw data, such as handwritten measurements from lab. Thanks Helpful 0 Not Helpful 0

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list the procedures on how to write a practical report

  • ↑ https://guides.libraries.indiana.edu/c.php?g=992698&p=7182653
  • ↑ https://www.csub.edu/biology/_files/How%20to%20Write_14.pdf
  • ↑ https://massasoit.edu/wp-content/uploads/2019/12/writing-center-Writing-a-Lab-Report.pdf
  • ↑ Michael Simpson, PhD. Registered Professional Biologist. Expert Interview. 8 September 2021.
  • ↑ https://writingcenter.uconn.edu/wp-content/uploads/sites/593/2014/06/Lab_Report-Writing_Basics_Revising_Lab_Reports.pdf
  • ↑ https://www.reed.edu/writing/paper_help/labreport_good.html
  • ↑ http://www.biologycorner.com/worksheets/labreport.html
  • ↑ https://www.hcs-k12.org/userfiles/354/Classes/18203/conclusionwriting.pdf

About This Article

Michael Simpson, PhD

At the very beginning of your biology lab report, state the problem you are trying to solve and list your hypothesis of what the solution will be. Then, list supplies you used and procedures you followed. Remember that anyone who reads the lab report should be able to duplicate your experiment, so be clear and detailed. For each step in your process, use the past tense so it reads as an account of what you’ve done rather than instructions. Afterward, explain the results in a conclusion that discusses the outcome or errors along the way. To learn how to format your report or use graphs and charts, scroll down! Did this summary help you? Yes No

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Science - Biochemistry 2 - Lab Reports Library Support: How to Write a Scientific Report?

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How to write a Scientific Report

list the procedures on how to write a practical report

How to Write a Scientific Report : Video

Getting Started with Your Practical Report

Practical Report 1: Theme - How to write a Scientific Report:

  • Introduction
  • Materials and Methods
  • Results (containing figures, graphs, tables, no calculations)

Writing your Practical Report  - Library support

Introduction (5)

  • Background about the experiment.
  • See each practical for more detail about this section.
  • This information comes from a REFERENCE such as textbook, library book or journal article!

References (5)

What is referencing? It is a way to demonstrate that you have extended your learning.

Two reasons for referencing:

  • To let the reader know whose ideas you are using
  • To enable your reader to check your information
  • Proper references must be given and must be cited in text . Use numbers (in text) and then list them in the order of appearance OR use surnames (in text) and list in alphabetical order.
  • At least 3 references must be used (may include the current text book) and NO internet references.

The Scientific Method

JoVE Video: The Scientific Method (Student Protocol)

The scientific method is a detailed, empirical, problem-solving process leveraged by biologists and scientists of other disciplines. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.

list the procedures on how to write a practical report

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  • Physics Depth Studies
  • 1. Depth Study Topics
  • 2. How to Conduct a Practical
  • 3. How to Write a Practical Report
  • 4. How to Perform Data Analysis
  • 5. Practical Report Example

Resources Year 12 Physics

Chapter 3: How to Write a Physics Practical Investigation Report | Depth Study Template

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Do you have a practical investigation as your depth study?

If you have been given a practical investigation as part of your depth study assessment, you’ll be required to write a scientific practical report. If you are wondering about how to write a practical report or looking for a depth study template, you’ll find it all here!

In this article, we’re going to discuss:

  • What is a scientific practical report?
  • What is the structure of a practical report in depth study?

What is a scientific practical report or ‘prac report’?

‘Prac reports’ are a formal way of documenting practical experiments. They summarise:

  • the reasons for conducting an investigation
  • describe how it was carried out, and
  • record and reflect on the findings.

Practical reports have a well defined structure to ensure all of the relevant information is included. They also need to be written in a way that is easy for others to understand and replicate.

We recommend that you use the following depth study template for a practical report to ensure you are adopting the right structure.

What is the structure of a practical investigation report in depth study?

A practical investigation report consists of the following sections:

Introduction

Each section of the Depth Study Template for a practical report is explained below.

The title of a practical report is a short description of the practical investigation. It contains sufficient information for the reader to understand what the experiment is about.

Abstract (optional)

What is the abstract?

The abstract is a precise summary of the whole report . Its function is to preview the contents of your report so that the reader can judge whether it is worth their while to read the whole report.

What should be included in the abstract?

In your abstract, you need to include:

  • an objective of the experiment
  • a short description of the method used
  • the main results and
  • the conclusions of the results.

How long should the abstract be?

The abstract should normally be a single paragraph between 100 and 200 words.

What is introduction?

The introduction describes why the report is important and what the report is about. It provides relevant background information about the topic being investigated.

What should be included in the introduction?

In your introduction, you need to include the answers to the following questions:

  • What is the inquiry question being asked?
  • What do you hope to learn from the investigation?
  • Why is this investigation important?

It is easier to write the introduction after you have written your method and results section of the report.

What is the hypothesis?

A hypothesis is a testable statement about a relationship between two variables. It is a prediction that you can test through an experiment.

In an experimental hypothesis, there is a relationship between the two variables being studied (one variable has an effect on the other). It implies that the results are not due to chance and that they are significant in terms of supporting the theory being investigated.

How do you write a hypothesis?

  • The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable.
  • The dependent variable is the variable being tested and measured in an experiment, and is ‘dependent’ on the independent variable
  • Step 2 : Establish a relationship between the independent and dependent variables. Is there evidence to support a specific effect by the independent variable on the dependent variable?
  • Step 3 : Write a concise hypothesis that uses clear and simple language in terms of the variables.

Examples of hypothesis

What is the aim?

The aim provides a succinct description of the objective of your experiment.

How to write the aim

The aim is often written in one of the following formats:

  • “This experiment aims to… ” or
  • “The purpose of this investigation is to…”.

Example: This experiment aims to determine the relationship between horizontal range and launch velocity.

What is the method?

The method describes the materials and the procedure used to conduct the experiment.

It is recommended that you explain why you chose a particular method.

What should be included in the method?

In your method, you should include:

  • Identification of independent, dependent and control variables. Details of how the control variables were controlled need to be provided.

Risk assessment

  • A list of materials used
  • A labelled diagram or picture of your experimental setup
  • Procedure describing how the data was collected. The procedure needs to be written in past tense and specify chronological sequence of events in the experiment in enough detail so that the experiment could be easily repeated by someone else.

What is a risk assessment?

A risk assessment is a process of identifying and evaluating the risks that are involved in the procedure of your practical investigation.

Identifying risks within your experiment and how to mitigate these risks is integral to the safety of the person carrying out the practical investigation

What should be  included in the risk assessment?

A risk assessment contains three main components:

  • Identifying the source of risk
  • The potential hazard associated with the risk
  • How to minimise the risk

A risk assessment is always presented in table format. An example of a risk assessment format is provided below

What are the results?

The results provide your findings of the experiment.

Results  describe   (not explain) your findings.

What is included in the results?

The results include qualitative and quantitative description of your findings.

In quantitative results, your collected data is organised in a table format and must include:

  • Appropriate columns and corresponding labels and units
  • At least 4 – 5 data points
  • Averages of data points

A scaffold of an appropriate results table is provided below.

In qualitative results, you will need to use both the past tense and the present tense.

  • The past tense is used to describe results and analyses. For example, “The results indicated horizontal and vertical motions are independent of each other.”
  • The present tense is used with results that the reader can see such as averages, tables and figures. For example, “The average time taken for a ball to reach the ground in Table 2 shows that it is independent of the horizontal launch velocity.”

What is the discussion?

The discussion  explains (not describes) the results of your experiment and discusses the significance of your findings.

What is included in the discussion?

Your discussion needs to include:

  • Correct axis on graph – independent and dependent variables correspond with correct axis
  • Uniform scale
  • Both axis are labelled and include correct units
  • Data points are plotted
  • Assessment of whether and how the questions raised in the introduction (aim) have been answered
  • Evaluation of the method and sources of error in the experiment
  • Identification and justification of improvements to the experiment in relation to accuracy, reliability and validity

The conclusion answers the aim and summarises what the experiment has contributed to in understanding of the problem posed.

What is a reference?

A reference is a piece of information within the report that provides an acknowledgment of the use of someone else’s work. This is the final section of the depth study template and perhaps the most important for negating any signs of plagiarism in your work.

What is included in the references?

It is essential to include a reference list or bibliography of the reference material you referred during your research for the experiment.

  • A  bibliography  is a list of all the reference material you consulted during your research for the experiment.
  • A  reference list  is a list of all the references cited in the text of your report, listed in alphabetical order at the end of the report.

In a reference list, sources are listed alphabetically by the surname of the author and when reference is made to more than one work by an author/s, list them chronologically, ending with the most recent work.

How to write correct references?

There are several systems of referencing such as the Harvard or author-date system. You can use this website for creating Harvard, APA & MLA citations for your bibliography

Depending on your school teacher, you may be asked to use Harvard or APA citations. Below is scaffolds and examples of Harvard and APA citations.

Harvard citations

How to provide Harvard citations for different media is outlined below.

Journal article

Author(s) surname, Initials. (year of publication). Article title,  Journal title.  Volume number (issue number), pp.(pages)

Example: Ehrlich, R. (1992). The Exploratorium Science Snackbook: Teacher Created Versions Of Exploratorium Exhibits.  Physics Today.  45(3), pp.65-68

Author(s) surname, Initials. (year of publication). Webpage title . [online] Website name. Available at URL, [Accessed (date)]

Example: Gyorki, J. (2010).  How to Determine Digital Multimeter Accuracy.  [online] Design World. Available at https://www.designworldonline.com/how-to-determine-digital-multimeter-accuracy/ [Accessed 27 Nov. 2019]

APA citations

How to provide APA citations for different media is outlined below.

Author(s) surname, Initials, (year of publication).  Title of journal.  Place of publication

Example: Farr, R., Wilson, K., Philip, Y., Gossens, D. (2018). Physics in Focus Year 12 . Cengage Learning Australia, Victoria.

Author(s) surname, Initials, (year of publication).  Title of website.  Retrieved from URL

Example: Gyorki, J. (2010). How to determine Digital Multimeter Accuracy . Retrieved from https://www.designworldonline.com/how-to-determine-digital-multimeter-accuracy/

If there are more than 4 authors

If there are more than 4 authors for a website or a journal article, they are referred to as [main author et al.]. This applies to both Harvard and APA citations.

Example: Munday et al. (2010). Replenishment of fish population is threatened by ocean acidification . Retrieved from https://www.pnas.org/content/107/29/12930

Access our library of Physics practical investigation reports written using the depth study template.

Get free access to syllabus specific Physics practical reports written by expert HSC teachers. Join 10000+ students who are getting ahead with Learnable. Signup and access the Physics practical reports for free .

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How to Write the Perfect Chemistry Lab Report: A Definitive Guide

February 11, 2020 By Guest Posts Leave a Comment

Students have to deal with multiple academic tasks, and writing lab reports (lots of them!) is one of them. Its main purpose is to explain what you did in your experiment, what you learned and what the results meant.

Performing experiments and reporting them properly is a cornerstone of on your way into learning chemistry .

But how do you write a chemistry lab report properly?

It’s now time to find out!

writing a chemistry lab report for an experiment

Our ultimate guide sheds light on the main parts of lab report writing. You ought to be aware of every section and understand how to complete them properly. Therefore, we have divided our guide into three major sections that are:

  • Parts of the lab report;
  • A step-by-step review;
  • Writing your project.

General Information

It’s necessary to begin with an overview of the main sections that should be present on a laboratory report for chemistry.

Mind that sometimes these sections are called differently but have the same purpose. Some of the sections may be missing, but the general structure should be close to this. Everything depends on the educational institution.

It is important to know that usually lab reports are written after the lab session is finished . This means that you need to have everything previously recorded in your lab notebook . You are supposed to keep track of everything you do in the lab in your laboratory notebook, and then using that notebook to write down your lab report, not the other way around.

Reviewing Every Step

Now, we’d like to go through the main stages of a chemistry lab report. It’s necessary to add brief comments concerning each of them. Your laboratory report begins with a title page. You already know what it consists of. Let’s check how to compose it correctly. The information must be presented on the upper right-hand side of the page. All the points (the title, your name, collaborators, etc.) should be mentioned on the separate line.

Afterward comes the second part, which includes:

  • The course title
  • Title of the experiment
  • Title of the parts within the experiment
  • Semester, year, etc. (optional)

This data appears in the middle of the title page.

The next section is the Introduction and it begins with this word in the left upper corner of your report. It should consist of no more than a couple of paragraphs and end with at least one hypothesis.

The body of your project consists of the procedure, materials and methods employed; data; results and observations.  The section Procedure commonly consists of several steps that were followed for the proper conduction of the experiment(s). They could be divided in different parts, and those would describe your actions.

The section Data contains the numerical facts and Observations that provide the changes that took place. Afterwards, you move to the Discussions, in which you ought to plainly explain all the numbers, observations and collected data. Your conclusions provide an overall summary of the entire lab report, and the whole experimental session itself.

Writing a Chemistry Lab Report

The last lap in our “race” is to write a laboratory report . We have already mentioned the main constituents of the title page. Therefore, we can hit the text of your project. Your abstract appears soon after the title page. An abstract is a quick summary that sums up the whole thing (hypothesis to be proven, and conclusions that are reached). Nonetheless, you should leave some space and skip it until the entire project is finished. It is recommended to write the abstract last. The main point is that this section provides a brief review of what your lab report is about and what you’ve managed to achieve.

Main Sections

The introductory part tells your readers what to expect from the project. Write a couple o paragraphs and explain the purpose of your experiment. Including references here is also highly encouraged. The last sentence of your introduction is called a hypothesis or a thesis statement. It shows what you hope to achieve at the end of your research.

The main body consists of several parts and of course, each has its purpose. You should introduce the materials and methods you need to conduct the research. Explain your choice and how your choice helps to conduct a safe and accurate study.

Take instant records of everything that happens during the experiment in your lab notebook . Never rely on your memory!

Afterwards, you’ll interpret the data and explain it using plain words. Don’t draw any conclusions when you record data and don’t explain it in the section called Results. This function should be fulfilled in the sections Discussions or Analysis sections, which should come right afterwards.

Your conclusion makes a brief summary. It should consist of 3-4 sentences, not many more. Restate your hypothesis in other words. Mention whether you’ve achieved your initial goal and explain its value.

Importantly, do realize that if a hypothesis cannot be proven, or an experiment doesn’t give you the results you expected, it doesn’t mean that your experiment and lab session was a failure. It is extremely common in chemistry to find yourself on this kind of situations! You only need to be able to explain why you got the results that you got, and how would you go around to fix them!

Further Sections on Your Report

Don’t forget about the contributors (labmates, supervisiors…) to your research.

You should also obligatorily use some secondary sources to support your theory. Therefore, you have to cite and make references according to the assigned writing format. You can reference other articles all over your manuscript (especially in the introduction and discussion sections), but don’t forget to put them together (or at the bottom of each page), and cite them properly.

The final step is to proofread your lab report. You’re free to use reading aloud and in your head, reading everything again, and using special grammar and spelling checking applications.

To sum up, keep in mind all these guidelines when you’re assigned to write a lab report. Thus, you’ll never miss something important, which can cost you essential grades. Write each section properly to receive the highest grades for your experiment. Always be clear, cite the appropriate references, and be objective with your analysis and conclusions!

Related Posts:

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27.8: Sample lab report (Measuring g using a pendulum)

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In this experiment, we measured \(g\) by measuring the period of a pendulum of a known length. We measured \(g = 7.65\pm 0.378\text{m/s}^{2}\) . This correspond to a relative difference of \(22\)% with the accepted value ( \(9.8\text{m/s}^{2}\) ), and our result is not consistent with the accepted value.

A pendulum exhibits simple harmonic motion (SHM), which allowed us to measure the gravitational constant by measuring the period of the pendulum. The period, \(T\) , of a pendulum of length \(L\) undergoing simple harmonic motion is given by: \[\begin{aligned} T=2\pi \sqrt {\frac{L}{g}}\end{aligned}\]

Thus, by measuring the period of a pendulum as well as its length, we can determine the value of \(g\) : \[\begin{aligned} g=\frac{4\pi^{2}L}{T^{2}}\end{aligned}\] We assumed that the frequency and period of the pendulum depend on the length of the pendulum string, rather than the angle from which it was dropped.

Predictions

We built the pendulum with a length \(L=1.0000\pm 0.0005\text{m}\) that was measured with a ruler with \(1\text{mm}\) graduations (thus a negligible uncertainty in \(L\) ). We plan to measure the period of one oscillation by measuring the time to it takes the pendulum to go through 20 oscillations and dividing that by 20. The period for one oscillation, based on our value of \(L\) and the accepted value for \(g\) , is expected to be \(T=2.0\text{s}\) . We expect that we can measure the time for \(20\) oscillations with an uncertainty of \(0.5\text{s}\) . We thus expect to measure one oscillation with an uncertainty of \(0.025\text{s}\) (about \(1\)% relative uncertainty on the period). We thus expect that we should be able to measure \(g\) with a relative uncertainty of the order of \(1\)%

The experiment was conducted in a laboratory indoors.

1. Construction of the pendulum

We constructed the pendulum by attaching a inextensible string to a stand on one end and to a mass on the other end. The mass, string and stand were attached together with knots. We adjusted the knots so that the length of the pendulum was \(1.0000\pm0.0005\text{m}\) . The uncertainty is given by half of the smallest division of the ruler that we used.

2. Measurement of the period

The pendulum was released from \(90\) and its period was measured by filming the pendulum with a cell-phone camera and using the phone’s built-in time. In order to minimize the uncertainty in the period, we measured the time for the pendulum to make \(20\) oscillations, and divided that time by \(20\). We repeated this measurement five times. We transcribed the measurements from the cell-phone into a Jupyter Notebook.

Data and Analysis

Using a \(100\text{g}\) mass and \(1.0\text{m}\) ruler stick, the period of \(20\) oscillations was measured over \(5\) trials. The corresponding value of \(g\) for each of these trials was calculated. The following data for each trial and corresponding value of \(g\) are shown in the table below.

Table A3.8.1

Our final measured value of \(g\) is \((7.65\pm 0.378)\text{m/s}^{2}\) . This was calculated using the mean of the values of g from the last column and the corresponding standard deviation. The relative uncertainty on our measured value of \(g\) is \(4.9\)% and the relative difference with the accepted value of \(9.8\text{m/s}^{2}\) is \(22\)%, well above our relative uncertainty.

Discussion and Conclusion

In this experiment, we measured \(g=(7.65\pm 0.378)\text{m/s}^{2}\) . This has a relative difference of \(22\)% with the accepted value and our measured value is not consistent with the accepted value. All of our measured values were systematically lower than expected, as our measured periods were all systematically higher than the § \(2.0\text{s}\) that we expected from our prediction. We also found that our measurement of \(g\) had a much larger uncertainty (as determined from the spread in values that we obtained), compared to the \(1\)% relative uncertainty that we predicted.

We suspect that by using \(20\) oscillations, the pendulum slowed down due to friction, and this resulted in a deviation from simple harmonic motion. This is consistent with the fact that our measured periods are systematically higher. We also worry that we were not able to accurately measure the angle from which the pendulum was released, as we did not use a protractor.

If this experiment could be redone, measuring \(10\) oscillations of the pendulum, rather than \(20\) oscillations, could provide a more precise value of \(g\) . Additionally, a protractor could be taped to the top of the pendulum stand, with the ruler taped to the protractor. This way, the pendulum could be dropped from a near-perfect \(90^{\circ}\) rather than a rough estimate.

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  1. PDF How to Write a Practical/Laboratory Report

    Guide shows you how to prepare a practical report and provides tips for ensuring a good grade. Practical Report Structure Practical reports have a clear, linear structure. Table 1 shows the different sections of a practical report and states the function of each section. (Requirements for individual courses may be different.) Table 1. Practical ...

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    Introduction. Your lab report introduction should set the scene for your experiment. One way to write your introduction is with a funnel (an inverted triangle) structure: Start with the broad, general research topic. Narrow your topic down your specific study focus. End with a clear research question.

  3. How to Write a Report: A Guide to Report Formats with Examples

    1 Choose a topic based on the assignment. Before you start writing, you need to pick the topic of your report. Often, the topic is assigned for you, as with most business reports, or predetermined by the nature of your work, as with scientific reports. If that's the case, you can ignore this step and move on.

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    Title Page. Not all lab reports have title pages, but if your instructor wants one, it would be a single page that states: . The title of the experiment. Your name and the names of any lab partners. Your instructor's name. The date the lab was performed or the date the report was submitted.

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    Author, A. A., Author, B. B., & Author, C. C. (year). Article title. Journal Title, volume number (issue number), page numbers. A simple way to write your reference section is to use Google scholar. Just type the name and date of the psychologist in the search box and click on the "cite" link. Next, copy and paste the APA reference into the ...

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    Guidelines for a Physics Lab Reports. A laboratory report has three main functions: (1) To provide a record of the experiments and raw data included in the report, (2) To provide sufficient information to reproduce or extend the data, and (3) To analyze the data, present conclusions and make recommendations based on the experimental work.

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    This Learning Guide shows you how to prepare a practical report and provides tips for ensuring a good grade. Practical Report Structure Practical reports have a clear, linear structure. Table 1 shows the different sections of a practical report and states the function of each section. (Requirements for individual courses may be different.) Table 1.

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    2. Be sure to include your name on the title page. You want to be sure you receive credit for the work. If you have a group report include the name of all students in your group. 3. Add the class title, date, and the instructor's name below your title. Your instructor may have a specific set of instructions.

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    A reference list is a list of all the references cited in the text of your report, listed in alphabetical order at the end of the report. In a reference list, sources are listed alphabetically by the surname of the author and when reference is made to more than one work by an author/s, list them chronologically, ending with the most recent work.

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    This Article is brought to you for free and open access by ScholarWorks@UMass Amherst. It has been accepted for inclusion in Practical Assessment, Research, and Evaluation by an authorized editor of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. Practical Assessment, Research, and Evaluation.

  21. 27.8: Sample lab report (Measuring g using a pendulum)

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