claim-greenberg-2009-citation-bias-names-selective-ignoring-of-contrary-data

title: "Greenberg's 2009 BMJ citation-network study separately names "citation bias" — selective, content-blind-to-truth citation that bolsters a predetermined claim — distinct from his own "citation transmutation"" type: claim status: seedling source_url: "https://pmc.ncbi.nlm.nih.gov/articles/PMC2714656" source_title: "How citation distortions create unfounded authority: analysis of a citation network" source_author: "Steven A Greenberg" source_date: "2009-07-20" source_venue: "BMJ 339:b2680" source_tier: 1 source_quote: "Citation bias, here defined as statistically significant differences in the number of citations received among primary data papers, seemed to be specifically against critical data not the laboratory producing it" source_sha: "1740bfeb65d4eecda0b19074bff89d85c33ed73b2c169fd73acd80cb4d75db33" source_quote_2: "In addition to its scholarly use, citation has social uses, both self serving and as a tool for persuasion" source_url_2: "https://pmc.ncbi.nlm.nih.gov/articles/PMC2714656" source_sha_2: "1740bfeb65d4eecda0b19074bff89d85c33ed73b2c169fd73acd80cb4d75db33" source_tier_2: 1 provenance: "Promotion from 10-inbox/raw/2026-11-03-does-citation-studies-or-sociology-of-science-literature.md, 2026-11-03 (headless)" origin: batch derived_from: ["10-inbox/raw/2026-11-03-does-citation-studies-or-sociology-of-science-literature.md"] date_created: 2026-11-03 writer_model: claude-sonnet-5 tags: [citation-analysis, citation-bias, bibliometrics, evidence-based-medicine, legitimation] seek_code_commit: d40ee39 quote_sweep: "FAIL 2026-11-04 — source_quote_2 NOT found in the capture-time archive (sha256 1740bfeb65d4…) — the quote does not match the bytes read at capture; repair before promotion" quote_sweep_2: "RESOLVED 2026-11-04 (scheduled audit) — the FAIL above is upheld and its cause identified: source_quote_2 as originally recorded ("Citation may be used for self serving purposes or as a tool for persuasion") silently deleted two inline superscript reference markers, which the source prints as "self serving purposes311 or as a tool for persuasion312 (see web extra note 14)." source_quote_2 has been replaced with a marker-free whole sentence carrying the same claim, verified verbatim against a live re-fetch. The 2026-11-04 FAIL line is retained above as the sweep's own record, not overwritten." audit_status: "2026-11-04 scheduled cross-model audit (claude-opus-5 auditing claude-sonnet-5): source re-fetched live (PMC2714656) plus the Europe PMC full-text XML; every pointer resolves and the central claim — that Greenberg's paper separately names and measures "citation bias" as a category distinct from his "citation transmutation" — is confirmed, including that the vocabulary box gives "Citation bias" its own heading while listing "citation transmutation" under "Invention". CORRECTED, three items: (1) source_quote_2 was not verbatim as printed (inline superscript reference markers removed) — this is what the same-night model-free sweep caught; replaced with a clean verbatim sentence from the paper's "What is already known on this topic" box, which carries the identical point. (2) the body presented the vocabulary box's two separate bullets as one quotation joined by a bracketed "[to]" ("...conflicting with a claim [to] bolster claim") — a stitched quote barred by sources.md's Quote shape rule; the definition bullet and the purpose bullet are now quoted separately as the box prints them. (3) the body attributed the 94% share to "the four papers supporting the belief"; the source numbers no such set, saying only "The supportive papers received 94% of the 214 citations" — the "four" belongs to a different sentence ("Of the 10 most authoritative papers, four provided experimental data addressing the claim"), and Greenberg elsewhere writes "four of the highly cited supportive papers", implying more than four. Replaced with the source's own sentence verbatim. Old wordings preserved in this audit's log entry."

Greenberg's 2009 BMJ citation-network study separately names "citation bias" — selective, content-blind-to-truth citation that bolsters a predetermined claim

Steven Greenberg's citation-network study of the belief that β-amyloid injures muscle in inclusion body myositis — already in the vault for its other named mechanism, "citation transmutation" — separately defines and measures citation bias as a distinct category, given a heading of its own in the same paper's vocabulary box and defined there as the "Systematic ignoring of papers that contain content conflicting with a claim," its listed purpose being to "Bolster claim; justifying animal models to provide opportunities to amplify claim." Applied to his data, under the section heading "Citation bias against critical primary data": "The supportive papers received 94% of the 214 citations to these primary data, whereas the six papers containing data that weakened or refuted the claim received only 6% of these citations (differing citation frequency, P=0.01)." The asymmetry tracked the content rather than its authors — "Citation bias, here defined as statistically significant differences in the number of citations received among primary data papers, seemed to be specifically against critical data not the laboratory producing it, as two papers that were biased against were written by the same research group that wrote four of the highly cited supportive papers." Greenberg frames the broader category explicitly as citation's social use standing alongside its scholarly one: "In addition to its scholarly use, citation has social uses, both self serving and as a tool for persuasion."

This is the same structural move as Song Jian's group's citation of Kwakernaak documented at moc-legitimation-not-origination: a citation selected and retained, or a contrary source symmetrically ignored, because it fits a predetermined conclusion, independent of a separate evaluation of the cited content's actual bearing on the claim. It is a distinct finding from the vault's existing Greenberg note: that note covers "citation transmutation" (a hedge silently dropped, hardening hypothesis into fact), which Greenberg's own vocabulary box groups under "Invention" and explicitly separates from "citation bias" (selectively ignoring contrary evidence), the term this note is about. A separate, older clinical-epidemiology lineage also names this same legitimation-selection mechanism, decades earlier — see claim-gotzsche-1987-first-demonstration-of-citation-bias-corroborated-by-ravnskov-and-duyx.