摘 要 本研究旨在瞭解當前臺北市國民中學校長學習領導、教師專業發展及學校效能之現況；分析不同背景變項下，臺北市國民中學校長學習領導、教師專業發展及學校效能之差異與相關情形；探究臺北市國民中學校長學習領導、教師專業發展對於學校效能之預測情形。 本研究採用問卷調查法，並以臺北市公私立國民中學（含完全中學）之教師為研究對象，抽取46所學校，共計回收有效樣本為477份。問卷回收後分別以描述統計、獨立樣本t考驗、單因子變異數分析、積差相關、逐步多元迴歸等統計方法進行分析。根據研究結果將結論分析歸納如下： 一、國民中學教師對於校長學習領導之現況具中高度知覺。 二、國民中學教師對於教師專業發展之現況具高度知覺。 三、國民中學教師對於學校效能之現況具中高度知覺。 四、不同性別、年齡、服務年資、最高學歷與學校規模的國中教師在知覺校長學習領導上有顯著差異。 五、不同年齡與服務年資的國中教師在知覺教師專業發展上有顯著差異。 六、不同性別、現任職務、學校規模與學校性質的國中教師在知覺學校效能上有顯著差異。 七、國中校長學習領導、教師專業發展及學校效能均呈現顯著正相關。 八、校長學習領導、教師專業發展對學校效能具有預測作用；其中以「關注學生學習」向度的預測力最佳。 根據以上結論，提出具體建議，作為教育行政機關、校長、國中教育人員與未來研究之參考。 關鍵字：校長學習領導、教師專業發展、學校效能 / Abstract This study aims to investigate the current circumstances of principals’ learning leadership of junior high schools in Taipei, teacher professional development, and school effectiveness. By analyzing several background variables, the study does research on the differences and relationship among principals’ learning leadership , teacher professional development, and school effectiveness. Besides, it intends to understand the influence of principals’ learning leadership and teacher professional development on the prediction about school effectiveness. The research adopts questionnaire survey. The subjects of the survey are teachers in 46 junior high schools in Taipei, and the study contains 477 effective samples. The data was analyzed through descriptive statistics, independent sample t-test, one-way ANOVA, Pearson product-moment correlation, and multiple regression analysis. The findings based on the results of the research are as follows: 1. The perception of the junior high school teachers toward implementation of principals’ learning leadership is moderately high. 2. The perception of the junior high school teachers toward teacher professional development is high. 3. The perception of the junior high school teachers toward school effectiveness is moderately high. 4. There are significant differences in the perception of principals’ learning leadership in terms of different genders, ages, years of service, academic background ,and the scale of school. 5. There are significant differences in the perception of teacher professional development in terms of different ages, and years of service. 6. There are significant differences in the perception of school effectiveness in terms of different genders, duty, the scale of school, and public/private schools. 7. There is a significant positive correlation among the principals’ learning leadership, teacher professional development, and school effectiveness. 8. The junior high school principals’ learning leadership and teacher professional development have positive direct effect on school effectiveness, and “paying attention to students’ learning” manifests the best prediction. According to the research findings, a few specific suggestions are proposed for the reference of education administrative units, principals, teachers of junior high schools, and research staff engaging in future research. Keywords: principals’ learning leadership, teacher s’ professional development,school effectiveness