Clue 1: Orient yourself
Which detail lets the next team repeat the method?
Use the labels and the picture's left-to-right, near-to-far, or before-and-after order. Name only what you can point to.
The question
Which detail lets the next team repeat the method?
Why it matters: Clinical recommendations affect real children and families. Fair comparisons, bias control, ethical limits, and honest uncertainty keep a promising result from becoming a harmful claim. Today you practice the professional reasoning behind that work: Transparent reporting lets others appraise and reproduce methods, but it cannot repair a weak design.
On your WebXam
Matching a study type to its reporting standard and judging completeness
For life
Having a gene is not the same as using it.
Principle: Having it is not using it
Five principles we return to
Having it is not using it
Same instructions, different switches
Same look, different cause
Change one thing and watch
Boss or doorman?
Decides the result or only allows it
Held down, not gone
Remove the brake and it returns
Many roads, one ending
One result can begin many ways
Try the everyday version first
A lab notebook must let an outside team repeat the route
A lab notebook records materials, steps, changes, and results in order. Another team should be able to follow the same route and identify where its result differs.
Do not jump to the biology yet. Treat the picture as a small system. Track its parts, follow one change at a time, and keep more than one explanation open until the picture supplies a way to separate them.
Clue 2: Trace one change
Where are missing participants shown?
Follow one object, stage, or path. Point to the first place where the situation changes instead of jumping to the ending.
Clue 3: Keep the cause open
What if the original design was unfair but perfectly reported?
List more than one explanation that still fits. Name the extra observation that would help you separate those possibilities.
Now inspect the illustration
Work from the visible evidence. A useful answer names the part of the picture that supports it and leaves unknown causes open.
- 1Which detail lets the next team repeat the method?
- 2Where are missing participants shown?
- 3What if the original design was unfair but perfectly reported?
Tier 1 check
Finish with the everyday model
Use the everyday picture to answer today's question in plain words: Which detail lets the next team repeat the method?
You can complete today's required check without opening the technical details below.
Ready for the real names? Optional tier 2
Technical rules and limits
Rule 1: Report planned and actual methods, participants, outcomes, and analyses.
Rule 2: Use the guideline matched to the study type.
Rule 3: Separate reporting from design quality, replication, and peer review.
Where the analogy stops: Exact reproduction may be impossible across people and settings, even when methods are transparent.
Carry the previous idea forward
Child research requires favorable risk and benefit, IRB review, parental permission, and affirmative assent when the child is capable.
Today's technical takeaway
Transparent reporting lets others appraise and reproduce methods, but it cannot repair a weak design.
Now map the same rules onto biology
Match CONSORT, STROBE, PRISMA, and ARRIVE to four studies
Participant route map
CONSORT for randomized trials
Observation record
STROBE for observational studies
Search and model notebooks
PRISMA and ARRIVE
Educational illustration, not a clinical photograph or a patient-specific study plan. Use the supplied evidence cards and claim ceiling.
Mateo's case file: evidence supplied in this lesson
EXP19-E1
The trial report includes eligibility, allocation, participant flow, outcomes, harms, and analysis.
Why it matters: Readers can check what happened from enrollment to result.
EXP19-E2
The study type determines the matched guideline: CONSORT, STROBE, PRISMA, or ARRIVE.
Why it matters: One checklist does not fit every design.
EXP19-E3
A fully reported study still has unconcealed allocation and severe missing data.
Why it matters: Transparency exposes the weakness but does not remove it.
Make the clinical decision
You are the journal reproducibility editor.
An author says completing a reporting checklist proves the study is trustworthy.
AUse the matched guideline, then judge design, conduct, analysis, and replication separately.
BAccept the checklist as proof of validity.
CReject reporting guidelines because they cannot fix a study.
Choose the editorial decision and match each supplied study to its guideline.
Evidence required
EXP19-E1 + EXP19-E2 Claim ceiling
You may judge reporting completeness and exposed strengths or weaknesses. You may not call a study reproducible or valid from a checklist alone.Go deeper Optional tier 3
Everything required for today is above. Open these only if you want the explainer, source trail, or download files.
The everyday model and Tier 1 check are the complete required path for this lesson.
Use these checks to keep your place. They are not turned in through the portal.
Check off as you finish
- Worked through the everyday picture and answered its three questions.
- Completed the Tier 1 check in plain words.
Turn in: Experimental Design lesson 19: How Does the World Check That a Study Is Trustworthy?
Go to Schoology to turn this in.
Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf.
Open Schoology PDF upload helpIf you cannot get in, see Mr. Mendoza. Do not skip the work.
Optional legacy technical materials Open only if you want the original notes, vocabulary, artifact, and CER work
Before this page, you should know
- An IRB or ethics committee is an independent group that must approve a study's protocol before it begins and approve any later changes; TOPS needed approval in every one of its five countries.
- means the participant, or for a child a parent or guardian, is told the real risks, benefits, and alternatives and freely agrees in writing, with the right to withdraw; an infant cannot consent, so parents give permission.
If not, review
Today's new idea is only
Complete reporting (CONSORT, STROBE, PRISMA, ARRIVE) is what makes reproducibility and possible; an unreported step is, to the outside world, the same as a missing step.
Goal: Explain how reproducibility, reporting standards (CONSORT for trials, STROBE for observational studies), and let outsiders check a study, and use a reporting checklist to spot what a weak paper left out.
Know by the end
- Audits of animal papers found randomization reported in only about 30 to 40%, in roughly 20%, and a sample-size justification in under 10%, which is why reporting standards exist.
- Each study type has its own reporting checklist: CONSORT for randomized trials, STROBE for observational studies, PRISMA for systematic reviews, and ARRIVE for animal research.
- Reproducibility means a result holds up when other people, using your written methods, run the study again and get the same finding; a result no one can repeat is not yet knowledge.
- is independent experts reading and judging a paper before publication; it works only when the paper reports enough detail, which is exactly what the standards force.
1
Reproducibility and reporting standards
Model start: Three public systems turn a finished study into trusted knowledge. Name them as you go.
- Reproducibility means a result holds up when other people, using your written methods, run the study again and get the ____ finding.
- A is a shared ____ of everything a paper must state so an outsider can fully understand and re-run it.
- The checklists by study type are CONSORT for randomized trials, STROBE for ____ studies, PRISMA for systematic reviews, and ARRIVE for animal research.
2
Peer review
- is the step where independent ____, who did not do the study, read the paper before a journal publishes it and can demand changes or reject it.
- is a first ____ that catches obvious flaws, not a guarantee that a study is correct.
- It works only when the paper reports enough ____ for reviewers to judge it, which is exactly what the reporting standards force.
Everything you need for today is on this page. These links are optional.
What to read
Read the short plain-language explanation written for this lesson. Plain-language explainer for this lesson
Why this source matters
This explanation gives you the background for today's idea without making you decode a research paper: Complete reporting (CONSORT, STROBE, PRISMA, ARRIVE) is what makes reproducibility and possible; an unreported step is, to the outside world, the same as a missing step.
Words to unlock first
reproducibilityreporting standardpeer reviewCONSORTSTROBE
Reading moves
- Skim the title and abstract first to get the gist.
- Circle the one sentence that states the main claim.
- Box the evidence the authors give for that claim.
- Mark one sentence that confuses you, and move on.
Stop point
Stop after the final 'Use it now' section. The research citations are available separately for advanced readers.
Your output
Write one claim-evidence sentence: state the main idea, then name the example or evidence that supports it.
Where this fits
Tested on (Ohio WebXam)
Genetics of Disease · 072130
PLTW lesson
MI · Experimental Design domain · Reproducibility, reporting standards (CONSORT/STROBE/PRISMA/ARRIVE), and peer review
WebXam domain
Molecular and Genetic Technology
Evidence to produce
A draft cleft paper crosses your desk: 'We operated on some babies with clefts at different ages and the early ones spoke better. The difference looked big.' As Science Writer: (1) name three things a CONSORT-style standard requires that this paper left out; (2) explain why a peer reviewer could not trust this paper as written; (3) rewrite the sentence so it reports one missing item properly (sample size, randomization, blinding, or the result with a confidence interval), using TOPS as your model.
Lab / skill
Biomedical Innovations (BI) · AP Biology
Everything required for today's decision is already in the case file and plain-language explainer. The links below are original papers and database records for teachers and advanced readers, not assigned student reading.
- CONSORT 2025. Updated reporting guidance for randomized trials.
- STROBE. Reporting guidance for observational studies.
- PRISMA 2020. Reporting guidance for systematic reviews.
- ARRIVE 2.0. Reporting guidance for animal research.
- Percie du Sert et al. 2020, ARRIVE 2.0 (audit of reporting in animal papers, PLoS Biol)
- Page et al. 2021, The PRISMA 2020 statement (BMJ)
- Gamble et al. 2023, TOPS trial (a CONSORT-style reported RCT, NEJM)
- Claim: A study becomes trustworthy not when its authors say so, but when outsiders can check, repeat, and review it.
- Evidence: Audits found randomization and were reported in only a minority of animal papers, which is why reporting standards exist.
- Reasoning: Explain why complete reporting is what makes both reproducibility and possible.
How this is graded (rubric)
For: A draft cleft paper crosses your desk: 'We operated on some babies with clefts at different ages and the early ones spoke better. The difference looked big.' As Science Writer: (1) name three things a CONSORT-style standard requires that this paper left out; (2) explain why a peer reviewer could not trust this paper as written; (3) rewrite the sentence so it reports one missing item properly (sample size, randomization, blinding, or the result with a confidence interval), using TOPS as your model.
| Criterion | Proficient | Developing | Beginning |
|---|---|---|---|
| Complete | Every required part of the artifact is present and filled in. | Most parts are present, but one is missing or left blank. | Several parts are missing. |
| Accurate | The science and data are correct and match the evidence. | Mostly correct, with a small factual slip. | Key science or data is wrong. |
| Scientific reasoning (CER) | States a claim, backs it with specific evidence, and explains the reasoning. | Has a claim and evidence, but the reasoning is thin or missing. | Gives an answer with no evidence or reasoning. |
| Professional communication | Clear, organized, and labeled the way a clinician or scientist would write it. | Readable but disorganized or missing labels. | Hard to follow. |
| Submitted | Turned in through the route named under Submit here and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
How the model answer scores against this rubric
- CompleteProficient: Nothing is left blank: the model fills every part of "A draft cleft paper crosses your desk: 'We operated on some babies with clefts at different ages and the early ones spoke better. The difference looked big.' As Science Writer: (1) name three things a CONSORT-style standard requires that this paper left out; (2) explain why a peer reviewer could not trust this paper as written; (3) rewrite the sentence so it reports one missing item properly (sample size, randomization, blinding, or the result with a confidence interval), using TOPS as your model.".
- AccurateProficient: Every number and claim matches the case evidence.
- Scientific reasoning (CER)Proficient: It names a claim, cites the specific evidence, and explains the reasoning, not just the answer.
- Professional communicationProficient: It is organized and labeled like a real chart note.
- SubmittedProficient: It would be attached to your class form or handed in, and confirmed.
What's next: We answered today's question: reporting standards, reproducibility, and let the world check a study instead of trusting it on faith. Across this whole domain you have learned to ask a , build a hypothesis, pick a design, control bias, run the stats, clear ethics, and report it all. So here is the last test: what new question about Mateo's would YOU investigate, and how would you design a study to answer it? We chase that next time, and this time the study is yours.