The Influence of Christian Religious Education and Character Education Teachers’ Spiritual Competence on the Character Formation of Grade XI Students at SMA Negeri 1 Sipoholon
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Abstract
The purpose of this study is to examine the influence of students’ character formation through the spiritual competence of teachers. The research hypothesis states: “There is a positive and significant influence of Christian Religious Education and Character Education teachers’ spiritual competence on the character formation of Grade XI students at SMA Negeri 1 Sipoholon in the 2025/2026 academic year.” The population of this study comprised all Grade XI students of SMA Negeri 1 Sipoholon in the 2025/2026 academic year, totaling 64 Protestant Christian students distributed across two classes. The research sample was determined using purposive sampling. Class XI C, consisting of 32 students, was designated as the experimental group, where the teacher’s spiritual competence in Christian Religious and Character Education was applied. Meanwhile, Class XI E, also consisting of 32 students, served as the control group, which received conventional instruction. This study employed a Quasi-Experimental Design with a Nonequivalent Control Group Design. The research instrument was a questionnaire consisting of 36 items. Data obtained from the questionnaire were analyzed using the mean difference test formula (N-Gain Score). The results showed that the experimental class achieved an average score of 0.8600, which falls into the high category, while the control class obtained an average score of 0.2025, which falls into the low category. Furthermore, an independent t-test was conducted, yielding a calculated value of t = 35.567, which was greater than the critical value of ttable (α = 0.05; df = 62) = 2.000. Therefore, it can be concluded that the research hypothesis is accepted, indicating that the spiritual competence of Christian Religious and Character Education teachers has a positive and significant influence on the character formation of Grade XI students at SMA Negeri 1 Sipoholon in the 2025/2026 academic year, and the null hypothesis (H₀) is rejected.
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