Synthesis / Evidence Decision Arena
Investigate · reconstruct · challenge · write

Three real datasets. No passive quizzes.

Do the work of an evidence-synthesis team: make a decision before seeing the result, change the study set, challenge a claim, and produce a source-linked decision record.

Source boundaries: Counts and estimates come from publicly documented R teaching datasets. Study subsets and learner-editor scenarios are deliberately constructed for teaching. No invented patient outcomes, religious instruction, causal proof or treatment recommendations. Your score measures participation, not verified research competence.

Evidence case ·

Select an investigation

Open the R source and original study records ↗
  1. 1. Commit
  2. 2. Predict
  3. 3. Reanalyse
  4. 4. Review
  5. 5. Report
Stage 1 · Commit before the reveal

Which inclusion policy can you defend?

Predict what adding the final selected row will do

Progress is saved locally on this device.

Facilitator use: a reproducible case conference

Ask one learner to defend the precommitted selection rule, another to reconstruct the effect, and a third to challenge the clinical interpretation. Participants submit their own dossier. The source data are real; the peer-review exercise and intervention sequence are instructional, not archived conversations.

For independent R reproductions use magnesium, BCG and lidocaine. Each source's study counts and methods must be checked against the appropriate R package. Peer review, accessibility testing with assistive technology, learning-outcome evaluation and professional translation reviews remain necessary.