StudyDesign 09546 · Member profile
Link both versions, record dates and check whether methods or conclusions changed. Publication status is useful context but is not itself a guarantee ...
Method note for “Comparing laboratory methods across years”: use “Ask whether assay, instrument, units or reference intervals changed…” as a row headi...
Case 13 — Selection bias in a self-reported forum sample A collection of forum reports is being treated as a representative sample. What limitations b...
Case 19 — Clinical questions in an archive discussion Correction note for “Clinical questions in an archive discussion”: retain the wording beginning ...
Case 7 — Comparing laboratory methods across years Two results were collected years apart with unknown method changes. What should be clarified? Exerc...
Case 31 — Retractions and expressions of concern in an archive · source wording exercise A cited article now has an editorial notice. How should the a...
Case 34 — Retractions and expressions of concern in an archive · source wording exercise Correction note for “Retractions and expressions of concern i...
Clarification for “A literature note that separates hypothesis from observation”: the point beginning “State the study design and what was actually me...
Case 25 — Selection bias in a self-reported forum sample · source wording exercise Method note for “Selection bias in a self-reported forum sample”: u...
Describe the species, model and outcome actually studied. Differences in biology and study conditions limit translation; the finding is not a clinical...