Higher education is greatly oriented on academic and practical aspect of knowledge. Somehow, college students are supposed to eligible and excellent in their knowledge competency, performance, and their confidence, particularly their self-efficacy. It is expected to maximize their learning and themselves to be a qualified graduates. This research aimed to discover the effectiveness of modelling technique to increase self-efficacy in college students of Ahmad Dahlan University boarding school. It used quantitative approach with quasi experiment using non-equivalent pretest-posttest control group design. The research was college students of Ahmad Dahlan University boarding school, amounting to 129 students. The sampling technique in this study used purposive sampling. The criteria for the studied sample in this study was college students of Ahmad Dahlan University boarding school with low self-efficacy. To collect data, this research used self-efficacy scale. The data was then analyzed by using non-parametric statistics with the Wilcoxon Signed Rank Test. The results showed that there were differences in the results of the experimental group's self-efficacy before and after the treatment was given (sign = 0.0180.05). These results implied that modelling technique was effective to increase self-efficacy college students of Ahmad Dahlan University boarding school.
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