The Life Starter
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Life · Guided lesson

Map the study design

About 24 minutes · 6 reading + 18 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

An evidence folder containing a paper-type note, design map, checked results, corrected claim, two-paper comparison, and a 150–250-word evidence brief.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Identify publication type, specific question, and scope for P1.
  • Map the design and check all rates with their denominators.
  • Correct the overclaim and compare P1 with P2.
  • Write the final brief with evidence IDs, limitations, and a useful next test.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Calculations and units match the supplied counts.
  • Design descriptions separate assignment, recruitment, and measurement.
  • Claims stay within tested populations and outcomes.
  • The synthesis preserves disagreement and labels all practice data fictional.
Open the full course project
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Before you begin

The idea in everyday life

Original fictional paper P1, “Signs and Sorting”: research question—do picture labels change sorting accuracy at one campus recycling station? Methods—40 volunteers randomly assigned to picture labels or text labels, 20 per group, one supervised session, identical items. Results—picture group 16/20 correct; text group 12/20 correct. Discussion—picture labels may help in this setting; volunteers and one session limit broader conclusions. No uncertainty interval or replication is supplied. This is a teaching example, not a published study.

The idea

A design map explains how the evidence was produced.

Follow along

Map the study design: guided practice

A design map explains how the evidence was produced.

Use paper or a free local text editor. This is an original fictional practice case; do not submit its records to a real service. Start this lesson with these facts, even if an earlier variation changed them. Original fictional paper P1, “Signs and Sorting”: research question—do picture labels change sorting accuracy at one campus recycling station? Methods—40 volunteers randomly assigned to picture labels or text labels, 20 per group, one supervised session, identical items. Results—picture group 16/20 correct; text group 12/20 correct. Discussion—picture labels may help in this setting; volunteers and one session limit broader conclusions. No uncertainty interval or replication is supplied. This is a teaching example, not a published study.

  1. 1. Identify the units

    Record who or what was assigned.

    You should see: Forty individual volunteers were assigned, with 20 in each group.

    Group size and unit of assignment affect what the comparison means.

  2. 2. Map conditions

    Write picture labels versus text labels, holding identical items and session conditions fixed.

    You should see: The stated difference is label format.

    Comparisons are clearer when other conditions are documented.

  3. 3. Define the outcome

    State what counts as success and when it was measured.

    You should see: Correct sorting during the one supervised session.

    A measured task result is more specific than a broad claim about behavior.

  4. 4. Draw the flow

    Write recruitment → random assignment → sorting task → group results.

    You should see: The flow contains volunteers, random assignment, one session, and two outcome counts.

    A compact method map exposes missing information.

Now change one thing

Changed case: learners choose whether to use the picture labels rather than being randomly assigned. Enter RANDOM or SELF-SELECTED.

Your work

What to finish

Map the study design record with the worked decisions and changed-case check.

Common mistake

Watch for this

Equating volunteer recruitment with random assignment or assuming unmeasured outcomes.

How can I tell I understand it?

Extract assignment, groups, measurement, and timing from methods. Explain the evidence behind the result and correct any mismatch.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1Students choose a quiet room or a busy room before a test. What limits a causal room comparison?
2A study records weekly group totals, but a summary claims each individual improved. What is missing?
3A study measures one immediate quiz. Which outcome was actually tested?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
2
Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

Go to the knowledge check
Optional course overview video · same video as Lesson 1
libncsuHow to Read a Scholarly ArticleYouTube
Optional course overview

How to Read a Scholarly Article

From libncsu. Watch here or open it on YouTube .

Optional course overview. Follow the written steps below at your own pace.
Tools, templates, and lesson sources

Tools and templates

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Sources and further reading

Explore the references behind this lesson.

Rice University: How to Read a Scientific Article
Source & access notes · checked 2026-09-12

Inspected IMRD structure, figures, active questions, and evidence appraisal.

Access: Public page or PDF inspected without payment or institutional sign-in on September 12, 2026. Optional external accounts are unnecessary for this course.

Reuse: Link and original paraphrase only. Public access does not grant blanket reuse; no provider text, figures, or exercises are reproduced.

Duke Academic Resource Center: How to Read and Understand a Scientific Article
Source & access notes · checked 2026-09-12

Inspected primary-versus-review distinction, methods mapping, results-versus-interpretation, and reading limits.

Access: Public page or PDF inspected without payment or institutional sign-in on September 12, 2026. Optional external accounts are unnecessary for this course.

Reuse: Link and original paraphrase only. Public access does not grant blanket reuse; no provider text, figures, or exercises are reproduced.

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