The Relationship Between Emotional Regulation Self-Efficacy and Achievement Motivation in Boarding Junior High School Students: The Mediating Role of Sleep Quality

目的：探讨寄宿制初中生情绪调节自我效能感、睡眠质量与成就动机的现状及其相互关系。方法：本研究采用情绪调节自我效能感量表、匹兹堡睡眠质量指数量表和成就动机量表对衡阳部分中学795名寄宿生进行调查，对数据进行描述统计、独立样本t检验、单因素方差分析、相关分析以及中介效应检验。结果：① 寄宿制初中生在情绪调节自我效能感和睡眠质量方面整体呈中等水平，而在成就动机方面则呈现相对较弱水平；② 不同性别初中生的情绪调节自我效能感、睡眠质量和成就动机得分呈现显著差异；③ 不同年级寄宿生的睡眠质量和成就动机存在差异分析，而情绪调节自我效能感在不同的年级上的差异不显著；④ 情绪调节自我效能感和成就动机呈显著正相关，情绪调节自我效能感、成就动机与睡眠质量之间呈显著负相关；⑤ 中介效应检验表明，睡眠质量在寄宿制初中生情绪调节自我效能感和成就动机发挥了部分中介作用，效应量为10%。结论：睡眠质量在寄宿制初中生情绪调节自我效能感和成就动机之间起到了部分中介作用。通过改善睡眠质量，可以有效提升学生的情绪调节自我效能感和成就动机，进而促进他们的全面发展和健康成长。Objective: To explore the current status and interrelationships among emotional regulation self-efficacy, sleep quality, and achievement motivation in boarding junior high school students. Methods: A survey was conducted with 795 boarding students from several middle schools in Hengyang using the Emotional Regulation Self-Efficacy Scale, Pittsburgh Sleep Quality Index (PSQI), and Achievement Motivation Scale. Data were analyzed through descriptive statistics, independent samples *t*-tests, one-way ANOVA, correlation analysis, and mediation effect analysis. Results: ① Boarding junior high school students demonstrated moderate levels of emotional regulation self-efficacy and sleep quality, while achievement motivation was relatively weak. ② Significant gender differences were observed in scores of emotional regulation self-efficacy, sleep quality, and achievement motivation. ③ Sleep quality and achievement motivation varied significantly across grades, whereas no significant grade-based differences were found in emotional regulation self-efficacy. ④ Emotional regulation self-efficacy was positively correlated with achievement motivation, while both variables showed negative correlations with sleep quality. ⑤ Mediation analysis indicated that sleep quality partially mediated the relationship between emotional regulation self-efficacy and achievement motivation, accounting for 10% of the total effect. Conclusion: Sleep quality plays a partial mediating role between emotional regulation self-efficacy and achievement motivation in boarding junior high school students. Improving sleep quality may effectively enhance students' emotional regulation self-efficacy and achievement motivation, thereby fostering their holistic development and healthy growth.