The effects of instructional leadership, PLC, and self-efficacy on teacher performance

Abstract

This study is motivated by the crucial role of teachers in determining the quality of education in schools, which is strongly influenced by school leadership, collaborative culture, and teachers’ self-efficacy. The purpose of this research is to analyze the effects of instructional leadership, Professional Learning Community (PLC), and self-efficacy on the performance of public junior high school teachers in Banjarmasin Timur District. A quantitative correlational design was used. The population consisted of 227 teachers, and the samples were obtained through proportional random sampling. Data were collected using a Likert-scale questionnaire that had been tested for validity and reliability. The data were analyzed using multiple linear regression, path analysis, and the Sobel test to examine mediation effects. The findings reveal that instructional leadership, PLC, and self-efficacy have significant effects on teacher performance, both partially and simultaneously. Self-efficacy is confirmed as a psychological factor that strengthens the role of instructional leadership and PLC in enhancing teacher performance. These results highlight that the combination of effective instructional leadership, a strong collaborative culture, and high teacher self-efficacy is essential in improving the quality of education at the junior high school level.