<![CDATA[This research was motivated by the importance of implementing school culture as an effort to establish and strengthen students’ disciplinary character. School culture that is consistently implemented through rules, habituation, supervision, and guidance is expected to create an educational environment that supports the development of disciplined behavior. This study aimed to determine the implementation of school culture and students’ disciplinary character, as well as to analyze the effect of school culture implementation on strengthening students’ disciplinary character at MTs Terpadu Roudhotul Qur’an Lamongan. This study employed a quantitative approach using a causal associative research design and a survey method. The research sample consisted of 74 students selected through simple random sampling, comprising 22 seventh-grade students, 25 eighth-grade students, and 27 ninth-grade students. Data were collected using a Likert-scale questionnaire supported by interviews, observations, and documentation. Data analysis was conducted using SmartPLS through the evaluation of the measurement model and structural model. The results showed that the implementation of school culture had been carried out well and that students’ disciplinary character was in the good category. The hypothesis testing results indicated that school culture implementation had a positive and significant effect on strengthening students’ disciplinary character, with a path coefficient of 0.701, a T-statistic of 13.991, and a P-value of 0.000. The R-Square value of 0.491 indicated that school culture implementation was able to explain 49.1% of the variation in students’ disciplinary character, while the remaining 50.9% was influenced by other factors outside the model. The effect size (f²) value of 0.964 indicated a large effect. Thus, the implementation of school culture is an important factor in strengthening students’ disciplinary character at MTs Terpadu Roudhotul Qur’an Lamongan]]>
