Validation

In practice — medical research context

When this role applies

Encoding

Use in your systems

<role vocab="credit"
      vocab-identifier="https://casrai.org/credit"
      vocab-term="Validation"
      vocab-term-identifier="https://casrai.org/credit/roles/validation" />

{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "@id": "https://casrai.org/credit/roles/validation",
  "name": "Validation",
  "identifier": "https://casrai.org/credit/roles/validation",
  "description": "Verification, whether as a part of the activity or separate, of the overall replication/reproducibility of results/experiments and other research outputs.",
  "inDefinedTermSet": "https://casrai.org/credit",
  "url": "https://casrai.org/credit/roles/validation",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "bibliographicCitation": "CASRAI Editorial Board (2026). Validation — CRediT contributor role (v2022.1). CASRAI. https://casrai.org/credit/roles/validation",
  "citation": "https://casrai.org/credit/citation",
  "dateModified": "2022-08-01",
  "version": "2022.1",
  "inLanguage": "en",
  "audience": {
    "@type": "Audience",
    "audienceType": "Researchers, editors, publishers, librarians"
  }
}

<contributor sequence="additional" contributor_role="author">
  <given_name>Jane</given_name>
  <surname>Doe</surname>
  <ORCID>https://orcid.org/0000-0002-XXXX-XXXX</ORCID>
  <credit_roles>
    <credit_role vocab-term-identifier="https://casrai.org/credit/roles/validation">Validation</credit_role>
  </credit_roles>
</contributor>

Identifiers

Persistent identifiers

Frequently asked

Common questions about Validation

What does the "Validation" CRediT role mean?

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

How do I cite "Validation" in an author contribution statement?

Per ANSI/NISO Z39.104-2022, list the contributor's name followed by their CRediT role(s). Example: "A. Smith — Validation". You can add an optional degree qualifier (lead / equal / supporting) when several authors share a role. See CASRAI's author-statement guidance at https://casrai.org/credit/for-authors for templates and worked examples.

What is the canonical machine-readable URI for "Validation"?

The canonical URI is https://casrai.org/credit/roles/validation. Use this in JATS XML (vocab-term-identifier), Crossref deposits (credit_role), JSON-LD (sameAs), and any system that stores contributor metadata. CASRAI's encoding guides cover JATS, Crossref Schema 5.5, and JSON-LD at https://casrai.org/credit/jats and https://casrai.org/credit/json-ld.

Can one author hold "Validation" plus other CRediT roles?

Yes — CRediT roles are not mutually exclusive. A single contributor typically holds 3–4 roles. The optional "lead / equal / supporting" qualifier clarifies the contributor's relative responsibility within each role they share with others.

Cite this role

Cite the Validation role

These citations reference this specific role page as a standards-body definition aligned with ANSI/NISO Z39.104-2022. For guidance on citing CRediT generally, the underlying standard, or worked statement examples, see How to cite CRediT.

CASRAI Editorial Board (2026). Validation — CRediT contributor role (v2022.1). CASRAI. https://casrai.org/credit/roles/validation

CASRAI Editorial Board. Validation — CRediT contributor role [Internet]. CASRAI; 2026 [cited 2026]. Version v2022.1. Available from: https://casrai.org/credit/roles/validation

CASRAI Editorial Board. 2026. "Validation — CRediT contributor role." Version v2022.1. CASRAI. https://casrai.org/credit/roles/validation.

@misc{casrai_credit_validation_2026,
  author       = {{CASRAI Editorial Board}},
  title        = {{Validation — CRediT contributor role}},
  year         = {2026},
  version      = {v2022.1},
  publisher    = {CASRAI},
  howpublished = {\url{https://casrai.org/credit/roles/validation}},
  note         = {Aligned with ANSI/NISO Z39.104-2022. Licensed CC-BY 4.0.}
}

Notable examples

Papers exemplifying the Validation role

These published papers demonstrate the Validation CRediT role in practice. Each example links to its DOI and explains why the role applies.

1. Example 1 of 4

   Estimating the Reproducibility of Psychological Science

   Open Science Collaboration · 2015 · Science · vol. 349 · pp. aac4716

   DOI: 10.1126/science.aac4716

   The single most prominent example of CRediT Validation as a primary research output. The 270-author collaboration attempted to replicate 100 published psychology experiments; the entire purpose of the paper is independent verification of prior results. Validation — verification of replication and reproducibility of results — is the work itself, not an ancillary contribution.

2. Example 2 of 4

   Drug Development: Raise Standards for Preclinical Cancer Research

   Begley, C. G., & Ellis, L. M. · 2012 · Nature · vol. 483 · pp. 531-533

   DOI: 10.1038/483531a

   Begley and Ellis report that only 6 of 53 landmark preclinical oncology findings could be reproduced inside Amgen. The paper is a validation exercise: independent reproducibility checking, performed industrially, of widely-cited basic research. The paper catalysed the reproducibility crisis in biomedicine and is a textbook example of why CRediT Validation needs to be a first-class role.

3. Example 3 of 4illustrative

   An Open Investigation of the Reproducibility of Cancer Biology Research

   Errington, T. M., Iorns, E., Gunn, W., Tan, F. E., Lomax, J., & Iorns, E. · 2014 · eLife · vol. 3 · pp. e04333

   DOI: 10.1371/journal.pbio.1002106

   The Reproducibility Project: Cancer Biology paper — a systematic independent-validation effort across 50 high-impact cancer-biology studies. The work is pure CRediT Validation: verification of the replicability of previously published results, performed by an independent team. It is exemplary of why Validation is its own role distinct from Investigation.

4. Example 4 of 4

   Investigating the Replicability of Preclinical Cancer Biology

   Errington, T. M., Mathur, M., Soderberg, C. K., Denis, A., Perfito, N., Iorns, E., & Nosek, B. A. · 2021 · eLife · vol. 10 · pp. e71601

   DOI: 10.7554/eLife.71601

   The final synthesis paper of the Reproducibility Project: Cancer Biology. The authors' contributions are dominated by Validation — independent verification of the reproducibility of prior findings — alongside Methodology (the replication protocol design). The paper is a flagship case study for why CRediT names Validation as a distinct, attributable role.

Examples curated by the CASRAI editorial board. Inclusion is illustrative of the role, not an endorsement of methodology or claims. Pre-CRediT-era papers are flagged illustrative.

Translations

Available in

The canonical, normative version of Validation is this English page (ANSI/NISO Z39.104-2022). Community-drafted translations are available below for working reference; the English text prevails in case of any divergence.

• English (canonical)en-GB
• Validation(Français)fr
• Validación(Español)es
• Validação(Português)pt-BR
• 验证(中文)zh
• 検証(日本語)ja

All translations are community drafts. CRediT has not been officially translated by NISO.

Dictionary

Related CASRAI Dictionary terms

The Validation role connects to these CASRAI Dictionary terms — the controlled-vocabulary concepts a contributor in this role typically works with. Each links to its canonical definition with worked examples and machine-readable encodings.

Adoption

Who collects Validation — by publisher

The Validation role is collected by the major publishers that have adopted CRediT portfolio-wide. See how each implements the taxonomy in their submission systems:

Related

Continue with CRediT