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H-Index/Evidence
Method evidence record

H-Index

The h-index, or Hirsch index, is a quantitative metric proposed by physicist Jorge Hirsch in 2005 to measure researcher productivity and citation impact simultaneously. A researcher has an h-index of h if they have published at least h papers, each cited at least h times. For example, an h-index of 20 means the researcher has 20 papers each cited at least 20 times. The h-index is widely used in research evaluation, hiring, and promotion decisions, though experts debate its limitations. It provides a single number balancing quantity of publications against quality of citations, offering an intuitive summary of research career impact.

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Source record

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

H-Index (Hirsch Index) Metric
Taxonomic method record · process-pipeline / bibliometrics
  • Hirsch, J. E. (2005). An index to quantify an individual's scientific research output. Proceedings of the National Academy of Sciences USA, 102(46), 16569-16572. · DOI 10.1073/pnas.0507655102
  • Egghe, L. (2006). Theory and practise of the g-index. Scientometrics, 69(1), 131-152. · DOI 10.1007/s11192-006-0144-7
  • Bornmann, L., Mutz, R., & Daniel, H. D. (2010). The h index for Journal Impact Factor: A new approach for assessing journal impact. Journal of Informetrics, 4(3), 358-365. · URL
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Curated claims

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

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Related methods

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

Same method familyJournal Citation Reportsmachine-suggested · Relational suggestion, not evidence.Same method familyJournal Impact Factormachine-suggested · Relational suggestion, not evidence.Same method familyPubMed and MEDLINEmachine-suggested · Relational suggestion, not evidence.Same method familyScopus Databasemachine-suggested · Relational suggestion, not evidence.Same method familyWeb of Science Databasemachine-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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