The Effect of Teacher Certification, Professionalism, and Work Discipline on their Performance in Pekanbaru City Senior High School

This study aims to analyze the effects of teacher certification, professionalism, and work discipline on teachers' performance in senior high schools in Pekanbaru, both partially and simultaneously. Using a quantitative approach with an explanatory research design, the study involved 69 teachers selected through stratified random sampling from a population of 800. Data were collected via validated and reliable questionnaires (significance = 0.05, reliability = 0.89) and analyzed using multiple linear regression with SPSS 26. The results indicate that teacher certification (β = 1.055), professionalism (β = 0.794), and work discipline (β = 0.913) significantly affect teacher performance. Collectively, these factors contribute 67.7%, with 32.3% affected by other variables. Schools should enhance teacher training and professional development to improve performance.