Efficient Variance Estimation for the Polytomous Discrimination Index

Qunqiang Feng, Taozheng Jia, Pan Liu, Ben Van Calster, Jialiang Li

Open source

DOI: 10.1002/sim.70690
Published: 2026-08
Container: Statistics in Medicine
Publisher: Wiley
Open access: unknown

Credibility signals

uncertain Score 64/100 under policy 1.0.0. This is a metadata assessment, not a judgment of the paper's conclusions.

Show all credibility signals

supportingDOI registered: A matching record was returned by Crossref. Source: Crossref; license: CC0 metadata
supportingDOI resolves: A matching record was returned by Crossref. Source: Crossref; license: CC0 metadata
not scoredDirectory of Open Access Journals: No matching DOAJ record was present in this response. No allow-list match; this is not evidence of low credibility. Source: DOAJ; license: CC0
not scoredMEDLINE indexed: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredOpenAlex core source: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredKnown publisher allow-list: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredROR affiliation: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredRetraction Watch retraction: No retraction notice matched this DOI in the deployed snapshot. No matching event found; coverage may be incomplete. Source: Retraction Watch; license: CC BY 4.0
not scoredRetraction Watch expression of concern: No expression of concern notice matched this DOI in the deployed snapshot. No matching event found; coverage may be incomplete. Source: Retraction Watch; license: CC BY 4.0
not scoredRetraction Watch correction: No correction notice matched this DOI in the deployed snapshot. No matching event found; coverage may be incomplete. Source: Retraction Watch; license: CC BY 4.0
not scoredRetraction Watch reinstatement: No reinstatement notice matched this DOI in the deployed snapshot. No matching event found; coverage may be incomplete. Source: Retraction Watch; license: CC BY 4.0
not scoredOpen access status: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredPublication license: Not checked or no result supplied; no credibility inference made. Source: No authority result supplied; license: Unknown
not scoredPublication version: A publication version was supplied but is not scored. Source: Normalized work metadata; license: Caller-provided; provenance license not supplied to scorer
supportingMetadata completeness: All 6 scored descriptive metadata groups are present. Source: Normalized work metadata; license: Caller-provided; provenance license not supplied to scorer

Cite this work

BibTeX

@article{allodium:10.1002/sim.70690,
  title = {Efficient Variance Estimation for the Polytomous Discrimination Index},
  author = {Qunqiang Feng and Taozheng Jia and Pan Liu and Ben Van Calster and Jialiang Li},
  year = {2026},
  journal = {Statistics in Medicine},
  doi = {10.1002/sim.70690},
  url = {https://doi.org/10.1002/sim.70690}
}

RIS

TY  - JOUR
TI  - Efficient Variance Estimation for the Polytomous Discrimination Index
AU  - Qunqiang Feng
AU  - Taozheng Jia
AU  - Pan Liu
AU  - Ben Van Calster
AU  - Jialiang Li
PY  - 2026
JO  - Statistics in Medicine
DO  - 10.1002/sim.70690
UR  - https://doi.org/10.1002/sim.70690
ER  -

APA

Feng, Q., Jia, T., Liu, P., Calster, B. V., & Li, J. (2026). Efficient Variance Estimation for the Polytomous Discrimination Index. Statistics in Medicine. https://doi.org/10.1002/sim.70690

Source records

crossref · retrieved 2026-09-24T18:24:19.558Z