One aspect to improve student achievement in learning at school is the effectiveness of teacher performance when teaching. Good teacher performance will determine the quality of learning and work of a student when he is in the community and company environment. The lack of optimal teacher performance is due to the lack of coordination of the principal’s leadership and the low behavior in increasing organizational effectiveness or what is called OCB (organizational citizenship behavior). The objectives of this study are: 1) to find out the description of leadership style, OCB and teacher performance; 2) to see the influence of leadership style and OCB on teacher performance simultaneously and partially. This research uses the design of library and field research. The population in this study is the teachers of Kartika I-4 Private High School, amounting to 27 teachers. Data collection is done by questionnaire, interview and documentation. Technical analysis of data uses the classic assumptions test, qualitative descriptive, and quantitative descriptive. The results of the study note that: 1) leadership style, OCB and teacher performance are good; 2) there is a positive influence between leadership style and OCB on teacher performance; 3) there is a strong relationship between leadership style, OCB and teacher performance; 4) the results of the hypothesis state H0 is rejected, which means that leadership style and OCB have a positive and significant effect on teacher performance simultaneously and partially.
Keywords: Leadership Style, OCB, Teacher Performance
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