Further Validation of the Triarchic Model of Grit Scale (TMGS) in Chinese Adolescents

The Triarchic Model of Grit Scale (TMGS) was developed as an innovative measurement designed to evaluate general grit levels, encompassing perseverance of effort, consistency of interests, and adaptability to situations within a collectivism culture. The present study was undertaken with the aim of examining the factor structure, measurement invariance, empirical validity, and incremental validity of the TMGS among in a sample of Chinese adolescents (<i>N</i> = 997, 43.4% males, <i>M</i>_age = 16.64, <i>SD</i>_age = 1.05). The results revealed that the original three-factor model of TMGS exhibited the best fit to the data, and supported partial scalar invariance across gender. Additionally, the internal consistency values of the TMGS scores ranged from marginal to acceptable, and the stability coefficients across time were acceptable. Moreover, the TMGS scores showed satisfactory criterion-related validity, correlating with scores of external criteria variables (e.g., Grit-S, self-control, and big five personality). Finally, the TMGS scores demonstrated superior incremental validity in predicting academic burnout compared to conscientiousness. Overall, although further studies are needed, our findings suggested that the TMGS demonstrated acceptable psychometric properties within a collectivist culture and may serve as a promising tool for assessing grit levels in Chinese adolescents.