University of Hertfordshire

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Original languageEnglish
Number of pages11
Pages (from-to)578-88
JournalPsychology, Health and Medicine
Journal publication date2012
Volume17
Issue5
DOIs
StatePublished - 2012

Abstract

The purpose of this study was to examine the factor structure of the Revised Illness Perceptions Questionnaire (IPQ-R) in a sample of 374 end-stage renal disease (ESRD) patients. A confirmatory factor analysis of the IPQ-R, including the illness identity subscale, demonstrated adequate model fit for the factor structure as originally defined by (Moss-Morris, R., Weinman, J., Petrie, K. J., Horne, R., Cameron, L. D., & Buick, D. (2002). The revised Illness Perception Questionnaire (IPQ-R). Psychology & Health, 17 (1), 1-16.) Modifying the a-priori IPQ-R factor structure by removing two items with low factor loadings and specifying a path between personal control and item 23 had marginally better fit. A separate exploratory factor analysis of the causal items indicated three factors relating to Biological, Psychological and Behavioural causes. These findings provide evidence towards the validity and reliability of the IPQ-R as a suitable measure of illness perceptions in the context of ESRD.

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