METHODS: A total of 604 adolescent basketball players, comprising 301 (49.8%) males and 303 (50.2%) females aged between 12 and 19 (M = 15.53, SD = 1.42), were recruited from secondary schools across 17 cities in Shandong Province, China, to answer the questionnaire, which measured their views on 29 items through a six-point Likert scale. The SSS was translated into Chinese language (SSS-C) using forward-backward translation techniques. Confirmatory Factor Analysis (CFA) was performed using Mplus 8.0 software to assess the structural validity of SSS-C. The reliability and convergent validity were also evaluated.
RESULTS: CFA results demonstrated an excellent fit to the hypothesized six-factor model based on the fit indices (CFI = 0.997, TLI = 0.997, RMSEA = 0.016 [90% CI: 0.005, 0.022], SRMR = 0.018). All items displayed significant factor loadings above 0.40, supporting the robustness of the model. The SSS-C exhibited high internal consistency reliability (Cronbach's α ranged from 0.95 to 0.96; Composite Reliability ranged from 0.95 to 0.96) and strong convergent validity (Average Variance Extracted values > 0.50).
CONCLUSION: The SSS-C with 29 items was a valid and reliable instrument for comprehensively assessing sport success among Chinese adolescent athletes. The multidimensional approach of the SSS-C provides a new perspective for understanding the psychological factors contributing to athletes' success, which can inform the development of targeted interventions.