StudyDesign 05196 · Member profile

Case 21 — Selection bias in a self-reported forum sample Correction note for “Selection bias in a self-reported forum sample”: retain the wording begi...

Case 37 — Units and scale: prevent a silent comparison error · source wording exercise Limit of the answer in “Units and scale: prevent a silent compa...

Was the analysis prespecified or exploratory, and how was uncertainty reported? Record what the paper states and mark unreported fields instead of ass...

Separate document provenance, identity, purity and the conditions measured. A percentage without its method and sample linkage cannot establish all of...

Clarification for “Research figure captions: tell the reader what was measured”: the point beginning “Interpretive discussion belongs alongside the ev...

Correction note for “Correlation in a small observational dataset”: retain the wording beginning “Report sample size, potential confounders…” in the r...

Summary draft for “Comparing laboratory methods across years”: the answer addresses “Ask whether assay, instrument, units or reference intervals chang...

Before comparing laboratories, ask whether sample handling, method conditions and reporting definitions are available. Missing details should be visib...