Literature notebook: study design, measurements and translation limits · RESEARCH-15162

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

A comparison table places chromatographic purity and net peptide content in one column. Both are percentages, but the reports define their denominators differently. How should the table be repaired?

Review focus: source wording. Retain the source wording beside any paraphrase. Use the original answer fragment “Do not subtract the two percentages as though they represented…” as the discussion anchor; no new event or result is supplied.

Exercise RESEARCH-15162/33: address this question within its stated limits.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Clarification for “Two laboratories, two percentages: are they measuring the same thing?”: the point beginning “Do not subtract the two percentages as though they represented…” belongs to the question as written. It should not be read as a report that a new check, purchase or experiment has been completed. Review focus: source wording. Retain the source wording beside any paraphrase.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Method note for “Two laboratories, two percentages: are they measuring the same thing?”: use “Do not subtract the two percentages as though they represented…” as a row heading in a proposed working record. Put the statement, its supporting source or measurement, and any unresolved detail in separate fields. This proposes a format; it supplies no additional evidence. Retain the source wording beside any paraphrase.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Limit of the answer in “Two laboratories, two percentages: are they measuring the same thing?”: “Do not subtract the two percentages as though they represented…” 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: source wording. Retain the source wording beside any paraphrase.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Correction note for “Two laboratories, two percentages: are they measuring the same thing?”: retain the wording beginning “Do not subtract the two percentages as though they represented…” 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. Retain the source wording beside any paraphrase.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Summary draft for “Two laboratories, two percentages: are they measuring the same thing?”: the answer addresses “Do not subtract the two percentages as though they represented…”; the related point is “Before comparing laboratories, ask whether sample handling, method conditions…”. Keep both connected to the opening question, and mark any conclusion needing further records as unresolved. Review focus: source wording. Retain the source wording beside any paraphrase.

Case 33 — Two laboratories, two percentages: are they measuring the same thing? · source wording exercise

Reader check for “Two laboratories, two percentages: are they measuring the same thing?”: distinguish the discussion point “Do not subtract the two percentages as though they represented…” 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: source wording. Retain the source wording beside any paraphrase.