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The Reliability and Validity of the Clinical Perfectionism Questionnaire in Eating Disorder and Community Samples

  • Sarah J. Egan (a1), Roz Shafran (a2), Michelle Lee (a3), Christopher G. Fairburn (a4), Zafra Cooper (a4), Helen A. Doll (a4), Robert L. Palmer (a5) and Hunna J. Watson (a6)...

Abstract

Background: Clinical perfectionism is a risk and maintaining factor for anxiety disorders, depression and eating disorders. Aims: The aim was to examine the psychometric properties of the 12-item Clinical Perfectionism Questionnaire (CPQ). Method: The research involved two samples. Study 1 comprised a nonclinical sample (n = 206) recruited via the internet. Study 2 comprised individuals in treatment for an eating disorder (n = 129) and a community sample (n = 80). Results: Study 1 factor analysis results indicated a two-factor structure. The CPQ had strong correlations with measures of perfectionism and psychopathology, acceptable internal consistency, and discriminative and incremental validity. The results of Study 2 suggested the same two-factor structure, acceptable internal consistency, and construct validity, with the CPQ discriminating between the eating disorder and control groups. Readability was assessed as a US grade 4 reading level (student age range 9–10 years). Conclusions: The findings provide evidence for the reliability and validity of the CPQ in a clinical eating disorder and two separate community samples. Although further research is required the CPQ has promising evidence as a reliable and valid measure of clinical perfectionism.

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Copyright

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Corresponding author

Reprint requests to Sarah Egan, School of Psychology and Speech Pathology, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. E-mail: s.egan@curtin.edu.au

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The Reliability and Validity of the Clinical Perfectionism Questionnaire in Eating Disorder and Community Samples

  • Sarah J. Egan (a1), Roz Shafran (a2), Michelle Lee (a3), Christopher G. Fairburn (a4), Zafra Cooper (a4), Helen A. Doll (a4), Robert L. Palmer (a5) and Hunna J. Watson (a6)...
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