Intraclass correlations: Uses in assessing rater reliability

Patrick E. Shrout, Joseph L. Fleiss

Research output: Contribution to journalArticlepeer-review


Reliability coefficients often take the form of intraclass correlation coefficients. In this article, guidelines are given for choosing among 6 different forms of the intraclass correlation for reliability studies in which n targets are rated by k judges. Relevant to the choice of the coefficient are the appropriate statistical model for the reliability study and the applications to be made of the reliability results. Confidence intervals for each of the forms are reviewed. (23 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved).

Original languageEnglish (US)
Pages (from-to)420-428
Number of pages9
JournalPsychological bulletin
Issue number2
StatePublished - Mar 1979


  • intraclass correlation coefficients, rater reliability assessment

ASJC Scopus subject areas

  • General Psychology


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