StudyDesign 07726 · Member profile

Case 37 — A literature note that separates hypothesis from observation · source wording exercise Summary draft for “A literature note that separates h...

Case 14 — Selection bias in a self-reported forum sample A collection of forum reports is being treated as a representative sample. What limitations b...

Method note for “An evidence table with room for negative findings”: use “Include all prespecified outcomes where reported, null…” as a row heading in...

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

Case 15 — Comparing laboratory methods across years Limit of the answer in “Comparing laboratory methods across years”: “Ask whether assay, instrument...

Method note for “Correlation in a small observational dataset”: use “Association does not identify direction or causation, and…” as a row heading in a...

Case 7 — Units and scale: prevent a silent comparison error Two figures use different units and one axis is logarithmic. How should a comparison be do...