<![CDATA[This study aims to examine the effect of principal leadership, work motivation, and work environment on teacher performance at SMP Muhammadiyah in Cianjur Regency. The research is motivated by persistent challenges in teacher performance, including suboptimal discipline, low learning innovation, and inadequate physical infrastructure. Employing a quantitative survey approach, data were collected from a saturated sample of 40 teachers using Likert-scale questionnaires. The data were analyzed using multiple linear regression via SPSS. The findings reveal that principal leadership and work motivation have a positive and significant partial effect on teacher performance (p-values of 0.013 and 0.007, respectively). Interestingly, the work environment exerts a positive but non-significant effect (p-value = 0.941), suggesting that in this faith-based educational context, intrinsic motivation and strong leadership support can outweigh physical facility limitations. Simultaneously, all three variables significantly influence teacher performance (p-value = 0.001). These findings validate the Social Exchange Theory, implying that school management should prioritize supervisory approaches and reward systems to sustain optimal teacher performance.]]>
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