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Content validity of the Chinese version of the PRAP scale: a convergent parallel mixed-methods study
Yulin Zhang1, Yingwen Wang2, Weijia Fu2
1School of Nursing, Fudan University, Shanghai, China.
Purpose:
This study aimed to evaluate the content validity of the Chinese-language version of the PRAP scale from comprehensive perspectives within the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) framework.
Methods:
We evaluated the content validity of the Chinese PRAP scale using COSMIN methodology in a convergent parallel mixed-methods design (August 2022-November 2023) at a tertiary children's hospital in Shanghai, with 57 content validity raters including nurses, social workers, and family caregivers. Quantitative (I-CVI, S-CVI/Ave) and qualitative data from semi-structured interviews were integrated.
Results:
The scale showed strong overall content validity based on the quantitative ratings (S-CVI/Ave = 0.92). Item 5 ("Parent/caregiver stress") showed the lowest relevance rating (I-CVI = 0.79). Qualitative feedback identified ambiguous phrasing in Items 4 and 5 and inconsistent interpretation of professional terminology.
Conclusion:
Despite uncertainties in comprehensibility identified by qualitative insights, the findings provide evidence supporting the content validity of the Chinese PRAP scale, while acknowledging that further psychometric evaluation is required.
