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Do Interrater Correlations Estimate the Reliability of Job Performance Ratings?

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assumptions of classical true score model

Do Interrater Correlations Estimate the Reliability of Job Performance Ratings?

It depends on who you ask. Some Researchers would say yes. They argue that correlations between ratings provided by multiple raters provide the “correct” estimates of the reliability of job performance ratings (Schmidt & Hunter, 1996; Viswesvaran et al., 1996). However, Murphy and De Shon (2000) provide an interesting insight into why this may not […]

arnold on Oct 09, 2008

What is Reliability?

Psychometrics

What is Reliability?

Reliability is the desired consistency (or reproducibility) of test scores. In practical terms reliability is the degree to which individual’ deviation scores, or z-scores, remain relatively consistent over repeated administration of the same test or alternate test forms (Crocker and Algina, 1986, p. 105).  Test developers must demonstrate that the scores obtained are reliable otherwise […]

arnold on Sep 17, 2008