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Not All Perfectionism Cognitions Are Multidimensional: Evidence for the Perfectionism Cognitions Inventory–10

Lookup NU author(s): Dr Tracy Donachie

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Abstract

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.


Publication metadata

Author(s): Hill AP, Donachie TC

Publication type: Article

Publication status: Published

Journal: Journal of Psychoeducational Assessment

Year: 2020

Volume: 38

Issue: 1

Pages: 15-25

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

URL: https://doi.org/10.1177/0734282919881075

DOI: 10.1177/0734282919881075


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