Reliability in assessment centres depends on general and exercise performance, but not on dimensions

Jackson, Duncan, Michaelides, George, Dewberry, Chris, Nelson, Jo and Stephens, Catherine (2022) Reliability in assessment centres depends on general and exercise performance, but not on dimensions. Journal of Occupational and Organizational Psychology. ISSN 0963-1798

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Abstract

This study contributes to the literature on assessment centre (AC) measurement structure by evaluating whether dimension, exercise or mixed-model theoretical perspectives are supported by reliability outcomes. In a large-scale study (Ncandidates = 2917) utilizing Bayesian generalizability theory, we tested reliability estimates configured to conform to dimension, exercise or mixed-model perspectives. Our findings reveal that reliability outcomes for AC ratings greatly depend on the measurement intentions of the researcher. When this intent aligned with the traditional dimension perspective, we found evidence that reliability was unacceptably low (mean reliability = .38, SD = .15). However, when the intent aligned with the exercise perspective, we found evidence that reliability exceeded acceptable criteria (mean reliability = .91, SD = .09). The addition of dimension- to exercise-related effects to reflect a mixed-model perspective did not make an appreciable difference to reliability.

Item Type: Article
Uncontrolled Keywords: assessment centers,reliability,generalizability theory,situational bandwidth,multitrait-multimethod,assessment centres,applied psychology,organizational behavior and human resource management ,/dk/atira/pure/subjectarea/asjc/3200/3202
Faculty \ School: Faculty of Social Sciences > Norwich Business School
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Depositing User: LivePure Connector
Date Deposited: 25 May 2022 08:30
Last Modified: 04 Jul 2022 08:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/85138
DOI: 10.1111/joop.12398

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