Multiple author contributions


For papers with multiple authors, Veterinary Evidence will require the corresponding author to specify how each author contributed to the paper. This is done using CRediT: a taxonomy which is used to recognise individual author contributions. CRediT offers authors the opportunity to detail how they contributed to the published work by choosing from the 14 roles in the below table:




Ideas; formulation or evolution of overarching research goals and aims


Development or design of methodology; creation of models


Programming, software development; designing computer programs; implementation of the computer code and supporting algorithms; testing of existing code components


Verification, whether as a part of the activity or separate, of the overall replication/ reproducibility of results/experiments and other research outputs

Formal analysis

Application of statistical, mathematical, computational, or other formal techniques to analyse or synthesize study data


Conducting a research and investigation process, specifically performing the experiments, or data/evidence collection


Provision of study materials, reagents, materials, patients, laboratory samples, animals, instrumentation, computing resources, or other analysis tools

Data Curation

Management activities to annotate (produce metadata), scrub data and maintain research data (including software code, where it is necessary for interpreting the data itself) for initial use and later reuse

Writing – Original Draft

Preparation, creation and/or presentation of the published work, specifically writing the initial draft (including substantive translation)

Writing – Review & Editing

Preparation, creation and/or presentation of the published work by those from the original research group, specifically critical review, commentary, or revision – including pre-or post-publication stages


Preparation, creation and/or presentation of the published work, specifically visualization/ data presentation


Oversight and leadership responsibility for the research activity planning and execution, including mentorship external to the core team

Project administration

Management and coordination responsibility for the research activity planning and execution

Funding acquisition

Acquisition of the financial support for the project leading to this publication

Learn more about CRediT:

  • List all Contributions – All contributions should be listed, whether from those listed as authors or individuals named in acknowledgements;
  • Multiple Roles Possible – Individual contributors can be assigned multiple roles, and a given role can be assigned to multiple contributors;
  • Degree of Contribution Optional – Where multiple individuals serve in the same role, the degree of contribution can optionally be specified as ‘lead’, ‘equal’, or ‘supporting’;
  • Shared Responsibility – Corresponding authors should assume responsibility for role assignment, and all contributors should be given the opportunity to review and confirm assigned roles.

Example CRediT author statement

Author 1 name: Conceptualization, Methodology (lead), Writing- Original draft preparation. Author 2 name: Data curation, Writing- Original draft preparation, methodology (supporting). Author 3 name: Visualization, Investigation, Writing – Review & Editing (lead). Author 4 name: Supervision, Writing – Review & Editing (equal). Author 5 name: Software, Validation, Writing- Original draft preparation. Author 6 name: Methodology (supporting), Writing- Reviewing and Editing (supporting).

This information will appear under the Acknowledgements section of the published manuscript.

Authorship criteria

All authors listed must meet the following four criteria recommended by the International Committee of Medical Journal Editors (ICMJE):

  1. Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work; AND
  2. Drafting the work or revising it critically for important intellectual content; AND
  3. Final approval of the version to be published; AND
  4. Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.


Where all criteria are not met, individuals should be acknowledged in an acknowledgements section at the end of the main text.