Psychometric validation of the Chinese version of the PROMIS Social Relationships Short Forms
Tingting Cai, Qingmei Huang, Fulei Wu, Haozhi Xia, Changrong Yuan
Abstract
AIM: This study aimed to culturally adapt and psychometrically validate the PROMIS Social Relationships Short Forms (PROMIS-SR) among Chinese patients with breast cancer. DESIGN: A cross-sectional study. METHOD: The PROMIS-SR was translated into simplified Chinese by strictly adhering to the Functional Assessment of Chronic Illness Therapy translation method and was subsequently tested among patients with breast cancer (N = 965). Eligible patients filled out the demographic information questionnaire, the PROMIS-SR, and the Functional Assessment of Cancer Therapy-Breast. RESULTS: Confirmatory factor analysis (CFA) provided support for the original structure of the PROMIS-SR. All instruments reported strong known-group, cross-cultural and convergent validity, as hypothesized. Correlation coefficients ranged from 0.67 to 0.85, and Cronbach's α of all items were high (0.90-0.94).