Preliminary Investigation of the Reliability and Validity of the Clinical Perfectionism Questionnaire in a Clinical Sample

Hoiles, K. and Kane, R. and Watson, H. and Rees, C. and Egan, S. 2016. Preliminary Investigation of the Reliability and Validity of the Clinical Perfectionism Questionnaire in a Clinical Sample. Behaviour Change. 33 (3): pp. 127-135.

Source Title

Behaviour Change

DOI

10.1017/bec.2016.6

ISSN

0813-4839

School

School of Psychology and Speech Pathology

URI

http://hdl.handle.net/20.500.11937/37712

Collection

Curtin Research Publications

Abstract

Perfectionism is a risk and maintaining factor across psychopathology and has been proposed to be a transdiagnostic process. The aim of this study was to examine the reliability and validity of the Clinical Perfectionism Questionnaire (CPQ) in 32 adults (75% female, M age = 35.54 years, SD = 9.71) with a range of psychological disorders, presenting for treatment of clinical perfectionism. There was evidence that the CPQ was correlated with established measures of perfectionism and theoretically related constructs including self-criticism and dichotomous thinking. The CPQ was also able to predict treatment outcome. The internal consistency was not adequate in the current study; however, the sample size was small. Future studies should examine the psychometric properties of the CPQ in a larger sample of individuals with a range of psychological disorders.