关键词: 青少年, 主观幸福感, 心理健康, 非线性关系, 阈值效应

Abstract: A total of 614 adolescents in middle school, high school, and college were administered the Symptom Check List 90 and the Index of Well-being to explore the nonlinear relationship between adolescents' subjective well-being and mental health, as well as the threshold effect. The results indicated that adolescents' mental health was generally satisfactory, with high school students exhibiting the lowest levels of mental health. The study found a negative correlation between adolescents' subjective well-being and their mental health indicators. Additionally, the findings demonstrated a nonlinear relationship between adolescents' subjective well-being and mental health indicators, as well as a threshold effect, which exhibited the inverse of the threshold model and the saturation model. The results of the study illustrated the nonlinear relationship between adolescents' subjective well-being and the factors of mental health at the level of dynamic interaction; the higher the subjective well-being, the fewer the psychological symptoms and the higher the level of mental health, and the strength of the relationship changes when a certain threshold is reached.

Key words: adolescence, subjective well-being, mental health, nonlinear relationship, threshold effect