CASRAI’s editorial network includes journal editors who handle CRediT statements daily, and we periodically aggregate the patterns of misuse they see. Three failures recur across disciplines, journal sizes, and submission systems. None are scandalous; all are correctable with attention. This post catalogues them with concrete examples and the editorial responses that work.
Failure one: role inflation
Role inflation is the most common CRediT failure by a wide margin. It is the practice of assigning every author every role, or near-every role, regardless of what they actually did. A typical inflated statement reads like a litany: Author A: Conceptualization, Methodology, Investigation, Formal analysis, Data curation, Writing – original draft, Writing – review & editing, Visualization, Supervision, Funding acquisition, Project administration. Author B: Conceptualization, Methodology, Investigation, Data curation, Writing – review & editing. Author C: Conceptualization, Methodology, Writing – review & editing. Every author is conceptualisation-positive; every author methodology-positive; every author writing-positive.
The pattern is recognisable and almost always wrong. Five authors did not all conceive the study. Five authors did not all design the method. Five authors did not all write the original draft. Role inflation reflects a misunderstanding of what CRediT is for: it treats the role assignment as a credit allocation (the more roles you have, the more credit you get), when CRediT is a description of contribution. As Liz Allen and the original CRediT designers were explicit, the taxonomy is meant to record what each contributor actually did, not to maximise their visible role count.
The editorial fix
Editors increasingly push back at submission. The Lancet‘s convention of requiring each author to write a prose contribution statement in their own words is unusually effective; it forces a moment of reflection on what the author actually did. Several other journals have adopted variations. The CASRAI CRediT authors guide includes a role-assignment worksheet that asks each author to write a one-sentence justification per role before the statement is finalised; the discipline of writing the justification surfaces most cases of role inflation before submission.
Where inflation has already made it into a submission, the editorial response is to ask the corresponding author to revise. The framing that works is methodological: “We use CRediT to describe what each contributor actually did. Please review the role assignments and confirm that each role corresponds to a substantive contribution by that author.” This is rarely contentious; in our experience the corresponding author tightens the statement on review.
Failure two: byline order substituting for qualifiers
The degree-of-contribution qualifier was added to NISO Z39.104 specifically to resolve byline-order disputes. A paper with three co-first-authors should mark them all as Equal on the roles they share; a paper with a clear lead on one role and supporting contributors on others should use Lead and Supporting accordingly. The qualifier is structurally what byline order has long tried to encode implicitly.
The misuse we see is statements that ignore the qualifier and rely on byline order or footnotes to communicate contribution magnitude. A typical example: a paper with five authors and a footnote saying “authors 1 and 2 contributed equally” but a CRediT statement that assigns roles without qualifiers, leaving the reader to infer what “equally” means across the roles. Is author 1’s Investigation equal to author 2’s Investigation? Is author 1’s Formal analysis equal to author 2’s Formal analysis? The footnote does not say; the unqualified CRediT statement does not say.
The editorial fix
Adopt the qualifier explicitly. If two authors contributed equally to a role, mark both Equal on that role. If one author was the lead and others supported, mark Lead and Supporting. Footnotes about equal contribution become redundant; the structured statement carries the information.
For journals, the editorial implementation is to require the qualifier in the submission system. The CRediT JATS specification supports the qualifier via the specific-use attribute; submission systems should expose this and require it. A few publishers have already moved here; we expect most to follow through 2026.
Failure three: missing writing roles
Every paper has someone who wrote the first draft. If a CRediT statement omits Writing – original draft, the editor will ask. This is the third recurring failure: statements that distribute Methodology, Investigation, Formal analysis, and Supervision but leave Writing – original draft unassigned.
The pattern usually reflects a real ambiguity. In a paper with three co-equal authors who jointly drafted, who gets Writing – original draft? The answer is all three, marked Equal. In a paper where a postdoc drafted under supervision and a senior author heavily revised, who gets which writing role? Almost always: postdoc gets Writing – original draft (lead); senior author gets Writing – review & editing (lead). In a paper where a paid medical writer drafted, the medical writer is typically not an author per ICMJE — they are acknowledged separately — and the authors who substantively shaped the draft get Writing – original draft as appropriate.
The editorial fix
Editors should treat “who wrote the first draft” as a required question at submission. The BMJ asks this explicitly. The CASRAI worksheet asks it. If the statement does not name a Writing – original draft contributor, the editor’s standard response is a one-line query: “Please indicate which author or authors discharged the Writing – original draft role; the role is currently absent from the CRediT statement.” In our editor network this query gets a fast, accurate response and the role is added before review proceeds.
Three lesser failures worth a paragraph each
Beyond the big three, three lesser failures are worth noting. First, conflating Methodology and Formal analysis: the role definitions distinguish these (Methodology is the study design; Formal analysis is the statistical or analytical work on the resulting data) and assigning both to the same person without distinction loses information. Second, assigning Software to anyone who touched a computer: Software is meaningful programming work, not opening Excel; if the contributor wrote no code, did not script the analysis, did not configure REDCap, they probably did not discharge the Software role. Third, missing Funding acquisition: someone wrote the grant. If the CRediT statement does not name a Funding acquisition contributor and the paper is grant-funded, the role is missing.
What CASRAI recommends
Four practical recommendations. First, use the role-assignment worksheet at the drafting stage, not at submission; it catches most misuse early. Second, require the degree-of-contribution qualifier in your journal submission system. Third, treat missing Writing – original draft as a default editorial query. Fourth, when in doubt about role inflation, ask each author to write a one-sentence justification per role; the discipline reveals the over-assignment naturally.
For the broader system, the most useful intervention is journal submission system support. Adoption at the policy level is now widespread, but the per-submission UX varies enormously. A submission system that prompts for qualifiers, validates that every role has a contributor, and asks per-author confirmation of role assignment catches most failures before they reach editorial review. We expect this UX to converge through 2026 as publishers update their Editorial Manager and ScholarOne configurations.
