This study aims. (1) Differences in the effect of STAD learning model and peer teaching in improving social skills of vocational high school students. (2) Differences in the effect of high learning motivation and low learning motivation in improving social skills of vocational high school students. (3) Interaction between STAD learning model, peer teaching, and learning motivation in improving social skills of high school students. Material dan methods. This type of research is a quasi-experiment using a 2 x 2 factorial design. The subjects in this study were students at State Vocational High School Depok, totaling 20 students. Results. (1) Based on the results of the study, there is a significant difference in the effect between the STAD learning model and peer teaching in improving the social skills of vocational high students with a p significance value of 0.000. The peer teaching learning model group is higher (better) than the STAD learning model. (2) Based on the results of the study, there is a significant difference in the influence of high learning motivation and low learning motivation on students’ social skills, as evidenced by a p-value of 0.004. Students who have a high level of learning motivation have better social skills than students who have a low level of learning motivation. (3) Based on the results of the study, there is a significant interaction between STAD learning model and peer teaching with learning motivation in improving social skills of vocational high school students with a significance p of 0.000. Conclusions. Research on the effect of STAD learning and peer teaching models in improving social skills of vocational high school students in physical education has a significant positive impact on improving social skills of vocational high school students and has important implications for the development of education at the vocational high school.
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