This study examined the predictive relationships of organizational involvement and study discipline with academic achievement among undergraduate students serving as officers of Study Program Student Associations (Himpunan Mahasiswa Program Studi [HMPS]) in education-related study programs at the Faculty of Tarbiyah and Teacher Training (FTIK), UIN Sjech M. Djamil Djambek Bukittinggi. The study employed a quantitative ex post facto correlational design. The population comprised 205 active HMPS officers, all of whom were included through total population sampling. Organizational involvement and study discipline were measured using questionnaires with five-point Likert-type response scales, while academic achievement was measured using students’ semester grade point average (GPA). Data were analyzed using simple and multiple linear regression. In the multiple-regression model, organizational involvement was not a statistically significant predictor of academic achievement (β = −0.130, p = 0.065), whereas study discipline showed a positive and statistically significant predictive relationship with academic achievement (β = 0.231, p = 0.001). The overall model was statistically significant (F = 6.108, p = 0.003) but explained only 5.7% of the variance in academic achievement (R² = 0.057), indicating limited explanatory power. Within the present model, study discipline showed a more consistent predictive relationship with academic achievement than organizational involvement. The findings are limited to HMPS officers in education-related study programs at FTIK, UIN Sjech M. Djamil Djambek Bukittinggi, and should be interpreted within this specific institutional context.
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