Abstract
This study evaluated the reliability and validity of the Chinese version of the "Motivational Climate in Physical Education Scale" (MCPES) among middle school students. Data were collected from 1,008 students, with 473 completing the MCPES, the Physical Needs Support in Physical Education Scale (PNS-PE), and the Youth Sports Friendship Quality Scale (YSFQS). Additionally, 437 students completed only the MCPES, and 200 valid retest questionnaires were gathered three weeks later. Exploratory factor analysis identified four factors: perceived mastery climate, perceived performance climate, perceived autonomy support, and perceived relatedness support with a total of 16 items. Confirmatory factor analysis supported the four-factor structure (χ(2)/df = 3.38, GFI = 0.92, NFI = 0.90, RMSEA = 0.07, CFI = 0.93, IFI = 0.93, SRMR = 0.05). The scale exhibited strict measurement invariance across genders and strong invariance across grade levels. It was positively correlated with teacher autonomy support (r = 0.34-0.53) and with each dimension and total score of sports friendship (r = 0.21-0.61). Cronbach's α coefficients for the MCPES and its dimensions were 0.75, 0.82, 0.79, 0.80, and 0.88, respectively. Intraclass correlation coefficients (ICCs) for the three-week retest were 0.64, 0.63, 0.72, and 0.76. In conclusion, the Chinese version of the MCPES demonstrates robust reliability and validity for use with middle school students.