Translation, cultural adaptation, and psychometric validation of the Provider Attitudes toward Cardiac Rehabilitation and Referral (PACRR-C) Scale in Simplified Chinese.

Background: The Provider Attitudes toward CR and Referral (PACRR) scale was translated into Simplified Chinese and psychometric validation ensued.

Methods: Brislin's Translation Model was applied, with two independent forward translations followed by back-translation. Experts assessed the face, content and cross-cultural validity of items, and item analysis followed. For validation, 227 physicians from hospitals in 14 Chinese provinces completed the PACRR-C. Structural validity was assessed through exploratory and confirmatory factor analysis. Internal and split-half reliability were assessed.

Results: Some items were rephrased and one item was deleted. The content validity index for the total scale was 0.965. The correlation coefficients between the 18 items and the total scale ranged between 0.28 and 0.76. Consistent with the English version, four factors were extracted (Cronbach's alpha ranged from 0.671-0.959) through the factor analysis, accounting for 71.21% of the total variance. Split-half reliability was 0.945. The greatest factors impacting physician's CR attitudes were inconvenience of the referral process (3.93 ± 0.65/5); lack of standard referral forms (3.92 ± 0.66), perceiving referral as the responsibility of another clinician (3.89 ± 0.67), and need for support in completing the referral form (3.89 ± 0.64).

Conclusions/significance: The reliability, as well as content, face, cross-cultural, and structural validity of the 18-item, 4-subscale PACRR-C, were supported.