Methods reading room: what analytical reports actually establish · RESEARCH-29469

Case 54 — Two laboratories, two percentages: are they measuring the same thing? · comparison exercise

Correction note for “Two laboratories, two percentages: are they measuring the same thing?”: retain the wording beginning “Before comparing laboratories, ask whether sample handling, method conditions…” in the record. If later material changes it, add the date, the changed wording and the source for that change; do not invent a completed correction here. Make the basis of a comparison explicit before interpreting it.

Case 54 — Two laboratories, two percentages: are they measuring the same thing? · comparison exercise

Limit of the answer in “Two laboratories, two percentages: are they measuring the same thing?”: “Before comparing laboratories, ask whether sample handling, method conditions…” is an excerpt from the discussion, not an independent verification. A reader needs the relevant original material before treating an interpretation as established. Review focus: comparison. Make the basis of a comparison explicit before interpreting it.

Case 54 — Two laboratories, two percentages: are they measuring the same thing? · comparison exercise

Summary draft for “Two laboratories, two percentages: are they measuring the same thing?”: the answer addresses “Before comparing laboratories, ask whether sample handling, method conditions…”; the related point is “Missing details should be visible…”. Keep both connected to the opening question, and mark any conclusion needing further records as unresolved. Review focus: comparison. Make the basis of a comparison explicit before interpreting it.

Case 54 — Two laboratories, two percentages: are they measuring the same thing? · comparison exercise

Reader check for “Two laboratories, two percentages: are they measuring the same thing?”: distinguish the discussion point “Before comparing laboratories, ask whether sample handling, method conditions…” from its proposed application. The thread offers a way to reason about the question, without adding a personal experience or a newly observed outcome. Review focus: comparison. Make the basis of a comparison explicit before interpreting it.