本研究旨在探討運動自我效能、身體自尊、身體自我概念與自尊感之間的相關性與身體自尊、身體自我概念在運動自我效能與自尊感之間的中介作用和雙中介間接影響力及其間接影響力的差異。本研究以臺灣地區中南部大學生為對象,採隨機抽樣,有效樣本數為1012份,經文獻回顧相關理論後,進行量表施測,以結構方程模式進行分析,本研究之整體模式適配度良好。研究結果發現:(一)運動自我效能對身體自尊之直接效果達到顯著,身體自尊對自尊感之直接效果達到顯著。(二)運動自我效能對身體自我概念之直接效果達到顯著,身體自我概念對自尊感之直接效果達到顯著。(三)運動自我效能可以透過身體自尊影響自尊感,為完全中介效果;運動自我效能可以透過身體自我概念影響自尊感,為部分中介效果。(四)身體自尊與身體自我概念在運動自我效能與自尊感之間,有雙中介間接影響力,其間接影響力具有顯著差異。
The study discusses the connections among sports self-efficacy, body esteem, physical self-concept, and self-esteem, as well as the mediating effect, double mediating indirect effect and its differences of body esteem and physical self-concept on sports self-efficacy and self-esteem. This research opted for random sampling and collected questionnaire from 1012 undergraduate students from Middle to Southern Taiwan, took the scale test and analyzed the results via structural equation model. The study finds as follows: (1) Sports self-efficacy significantly predicted body esteem, body esteem significantly predicted self-esteem. (2) Sports self-efficacy significantly predicted physical self-concept, physical self-concept significantly predicted self-esteem. (3) Sports self-efficacy had complete mediating effect and could affect self-esteem through body esteem; sports self-efficacy had partial mediating effect and could affect self-esteem through physical self-concept. (4) Body esteem and physical self-concept had double mediating indirect effect on sports self-efficacy and self-esteem, at the same time, this indirect effect had significant difference.