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Lookup NU author(s): Dr Tracy Donachie
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The measurement of perfectionistic cognitions has recently caused disagreement amongresearchers. Flett, Hewitt, Blankstein, and Gray proposed that perfectionistic cognitions areunidimensional. However, after re-examining the factor structure of the instrument used tomeasure perfectionistic automatic thoughts (Perfectionism Cognitions Inventory [PCI]), Stoeber,Kobori, and Tanno argued that perfectionistic cognitions are multidimensional. Researchers arenow faced with a dilemma: Should they adopt a multidimensional approach derived from theanalysis of the underpinning structure of the instrument or should theory take precedence andthe instrument be revised? In considering these two alternatives, in this instance, we advocatethe latter strategy. In accord, in the current study, we assess the factor structure of the PCI withthe intention of creating a unidimensional version of the instrument. In doing so, we provideevidence to support the use of a new shorter version of the PCI. Unlike the original PCI, thePerfectionism Cognitions Inventory–10 (PCI-10) has a unidimensional structure that replicatesacross independent samples. The PCI-10 and the original PCI are also highly correlated. Based onthis evidence, we propose that the PCI-10 provides a short, psychometrically sound, instrumentto measure perfectionistic cognitions in the unidimensional manner it was intended.
Author(s): Hill AP, Donachie TC
Publication type: Article
Publication status: Published
Journal: Journal of Psychoeducational Assessment
Print publication date: 01/02/2020
Online publication date: 14/10/2019
Acceptance date: 01/09/2019
ISSN (print): 0734-2829
ISSN (electronic): 1557-5144
Publisher: Sage Publications Ltd
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