The psychometric properties of a modified client-centred rehabilitation questionnaire in an Australian population


By bhadmin February 2, 2021

To identify the face validity of the Client-Centred Rehabilitation Questionnaire (CCRQ) and to determine the internal consistency reliability and factorial validity of a modified CCRQ. This study was conducted in 2 phases. Phase 1 consisted of 5 focus groups to examine the face validity of the CCRQ, resulting in the development of a modified CCRQ. Phase 2 consisted of a multi-site cross sectional survey, involving 408 rehabilitation inpatients, to examine the internal consistency reliability and factorial validity of the modified CCRQ. Chronbach’s coefficient alpha, composite reliability coefficients, and single factor congeneric models with maximum likelihood confirmatory factor analysis were used. Based on feedback from the focus groups the CCRQ was modified with the word ‘rehabilitation’ replacing ’program’ throughout. The three negatively worded items had poor item-to-total correlations of <0.3. Removing these items resulted in subscale alphas of 0.74–0.86 and composite reliability coefficients of 0.66–0.87. Six of the seven sub-scales had good model fit and the other one had moderate fit following removal of the negatively worded item.This study supports the underlying structure and internal consistency of the modified CCRQ.

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