<![CDATA[The research purposes of this study are to analyze and examine the effect of transformational leadership style and principal's academic supervision on teachers' professional competence at SD Islam Terpadu Baitul Muslim Way Jepara East Lampung. The research methods used a quantitative approach with explanatory-causal research design. The population consisted of 40 teachers at SDIT Baitul Muslim, with a sample of 40. Data were collected using closed-ended questionnaires measured on a 4-point Likert scale and analyzed using descriptive statistics, Pearson correlation, simple and multiple linear regression, t-test, and F-test with the help of JASP application. The research results show that: (1) transformational leadership style has a negative and not significant effect on teachers' professional competence with a t-count value of -0.140 (sig. 0.889 > 0.05) ;(2) principal's academic supervision has a positive and significant effect on teachers' professional competence with a t-count value of 2.672 (sig. 0.011 < 0.05); and (3) transformational leadership style and academic supervision simultaneously have a positive and significant effect on teachers' professional competence with an F-count value of 7.240(sig. 0.002 < 0.05) and a coefficient of determination of 0.281, meaning that 28.1% of the variance in teachers' professional competence is influenced by both independent variables, while the remaining 71.9% is influenced by other factors. The novelty of this study lies ini its simultaneous examinations of the effects of transformational leadership and academic supervision by the principal on teachers’ professional competencies. This approach provides a more comprehensive picture of the interrelationship between the principal’s leadership and supervision in supporting teachers’ professional competencies, particularly in the context of integrated Islamic elementary schools.]]>
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