Purpose: This study aimed to investigate a performance development model of the certified teachers at private vocational schools through school principal leadership, working environment, and teachers’ alleviating motivation.
Research Method: This research was conducted using a descriptive correlation approach with a multiple regression analysis. The data were collected using a purposive random sampling technique with total respondents of 118 certified teachers from various private vocational schools in Tegal, Central Java, Indonesia. The data were gathered through questionnaires and then analyzed using SPSS 12.
Findings: The regression analysis testing results indicated that (1) school principal leadership with the correlation coefficient of 0.83 positively and significantly influenced the performance of certified teachers by 82.8%, (2) working environment with the correlation coefficient of 0.877 positively and significantly influenced the performance of certified teachers by 87.7%, and (3) affiliating motivation with the correlation coefficient of 0.035 did not positively and significantly influence the performance of certified teachers by 3.50%. The results of multiple regression analysis showed that performance of certified teachers was influenced by school principal leadership, working environment, and teachers’ affiliating motivation.
Implications for Research and Practice: Based on the research results, it is suggested that the private vocational principals should continuously improve their leadership and create positive working environments as these variables positively influence teachers’ performance, while teachers’ affiliating motivation should also be considered.
Certified teachers’ performance, school principal leadership, working environment, teachers’ affiliating motivation