Factors Affecting Teacher Performance at Junior High Schools in DKI Jakarta, Indonesia

The purpose of this study is to determine the most dominant factors that affect the performance of teachers in the teaching process. The study population is a public high school teacher who located in DKI Jakarta. The number of questionnaires distributed and received by respondents was 215 questionnaires then returned only about 175 questionnaires. Multiple linear regression analyzed data with the help of IBM SPSS program. Teacher performance variable (Y) as the dependent variable, during teacher attitude (X1) and quality of supervision (X2) as the independent variable. Measurement of validity and reliability using Alpha Cronbach. The result showed that there was a significant influence between attitude variable (X1) on teacher performance (Y) and also there was a considerable influence between quality supervision variable (X2) on teacher performance (Y). From the research, it can conclude that attitude variable is dominant factor which tends to influence teacher performance in interaction process of teaching-learning. In this case, the teacher should be able to improve his performance which is the capital for the success of education.