This study aims to analyze the effect of supervision and motivation on the discipline of teachers and staff at SMA Negeri 1 Sigunung, Pakpak Bharat Regency, using a quantitative correlational approach and questionnaires. The results of the multiple linear regression analysis indicate that supervision has a positive and significant effect on discipline, with a calculated t-value of 2.216, which is greater than the t-table value of 2.040. In addition, motivation also has an effect with a regression coefficient of 0.856, which is higher than the supervision coefficient of 0.210, meaning that motivation provides a greater influence. Simultaneously, supervision and motivation contribute 97.3% to the improvement of discipline. In conclusion, good supervision and motivation together are able to enhance discipline, and therefore the principal is advised to continuously improve ongoing supervision and provide effective motivation to build a professional work culture.
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