目的：國民教育由九年國教邁向12年國教，國中三年級學生面臨升學方式的重大變革，由以往學科基本能力測驗改為國中會考，評分方式也改為精熟、基礎、待加強，而超額比序的方式不採計在校學科成績，轉而採計健體、藝術、綜合三科的成績，所以體育成績的及格與否，將直接影響學生的升學。方法：本研究以國小、國中、高中學生，各取男生38名、女生38 名，共228名學生。（一）以雙因子單變量變異數分析，來分析性別、求學階段（國小、國中、高中）在「運動自我效能」的差異情形。（二）Pearson積差相關法探討學生在「運動自我效能」與「體育成績」之相關性。結果：依據單純主要效果的變異數分析結果發現：國中及高中階段的男生與女生，其運動自我效能皆達顯著差異，而國小階段男生與女生的運動自我效能未達顯著差異。其中國中男生運動自我效能顯著優於國中女生；高中男生運動自我效能顯著優於高中女生。結論：分析在各階段運動自我效能與體育成績之相關，發現在國小與國中階段，其運動自我效能與體育成績相關達顯著水準，皆呈現中度正相關，表示在國小與國中階段其運動自我效能得分越高，則體育成績也越高。

Objective: nine national education by the state religion for 12 years towards the state religion, Junior Grade 3 students facing major change studies the way, from the previous basic aptitude test subjects to Junior Certificate, the score also changed the way mastery , basic, to be strengthened rather than orderly fashion over not using school academic performance , the school will be taken into account in the score of fitness, art, integrated three subjects , so passing sports scores or not, will directly affect the student's studies methods: in elementary, junior high and high school students, 38 from each of the boys and girls 38 of 228 students. (A) with two factor univariate ANOVA to analyze different gender, different stages of schooling (elementary, junior high and high school) in ＂self-efficacy＂ difference circumstances. (B) Pearson plot to explore students ＂self-efficacy＂ and the relevance of the ＂sports performance＂ poor correlation method. Results: According to the simple main effects ANOVA results showed that: junior and senior high school boys and girls, their exercise self-efficacy were significant differences, and boys and girls elementary stages of exercise self-efficacy no significant difference. China in its exercise self-efficacy was significantly better than boys in the girls state; high school boys exercise self-efficacy was significantly better than high school girls. Conclusion: The analysis exercise self-related performance and sports scores in each stage, found in a small country with junior stage, exercise self-efficacy and physical performance -related was significant, both showed moderate positive correlation, which means that in a small country with junior stage of their exercise self-efficacy score is higher, the higher sports scores.