Abstract: The purpose of this study is to describe the leadership variables of the principal, organizational culture, teacher professionalism, work motivation, and teacher performance, analyze the principal's leadership variables, organizational culture, teacher professionalism, teacher professionalism, and work motivation simultaneously affect teacher performance, analyze the principal's leadership variables, organizational culture, teacher professionalism, teacher professionalism, and work motivation partially affect teacher performance and to find out and analyze among the principals' leadership variables, organizational culture, teacher professionalism and work motivation that have a dominant effect on teacher performance, in high schools and state vocational schools in the Ile Ape......
Keywords: Headmaster Leadership, Organizational Culture, Teacher Professionalism, Work Motivation, and Teacher Performance..
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