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Content Validity Ratio/Evidence
Method evidence record

Content Validity Ratio

The Content Validity Ratio (CVR) is a quantitative method developed by Charles Lawshe in 1975 for evaluating the extent to which items in a measurement instrument are relevant and representative of a target construct. The method aggregates expert panel judgments into a single validity coefficient for each item, enabling researchers to identify and retain only those items deemed essential by domain experts. CVR provides objective support for content validity claims during scale development.

Sources recorded, not reviewed

Source record

Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Lawshe's Content Validity Ratio Method for Expert Panel Assessment
Taxonomic method record · process-pipeline / psychometrics
  • Lawshe, C. H. (1975). A quantitative approach to content validity. Personnel Psychology, 28(4), 563-575. · URL
  • Tristán-López, A. (2008). Modification of the content validity ratio. Revista Educación y Pedagogía, 20(48), 11-18. · URL
  • Polit, D. F., & Beck, C. T. (2006). The content validity index: are you sure? Research in Nursing & Health, 29(5), 489-497. · URL
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Curated claims

Claims persisted in the evidence ledger, each with its own assessment.

No curated claims yet

This view does not invent a claim assessment when the ledger has none.

Related methods

Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.

Taxonomic bucketConfirmatory Factor Analysis for Scalesmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketFactor Analysis for Scale Developmentmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketFloor and Ceiling Effectmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketLikert Scale Constructionmachine-suggested · Relational suggestion, not evidence.

Evidence status

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

Sources

3 recorded citations, copied from the method source record.

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