<![CDATA[This study aims to examine the effect of the self-check method on improving students’ learning outcomes in underhand passing in volleyball. The research was conducted at SD 13 Arfai using a pre-experimental design with a one-group pre-test and post-test approach. The participants consisted of elementary school students selected using total sampling. Data were collected through performance tests, observation sheets, and self-assessment instruments, focusing on technical aspects of underhand passing such as body position, arm contact, coordination, and ball control. The results showed a significant improvement in students’ learning outcomes after the implementation of the self-check method. The mean score increased from pre-test to post-test, supported by the results of the paired sample t-test (Sig. < 0.05), indicating a statistically significant difference. Furthermore, the effect size analysis revealed a large effect, suggesting that the self-check method had a strong impact on students’ skill development. These findings indicate that the self-check method effectively enhances students’ underhand passing skills by promoting active reflection, feedback integration, and repeated practice. In addition to improving technical performance, the method also supports students’ self-regulation and engagement in learning. Therefore, the self-check method can be considered a practical and effective instructional strategy in physical education, particularly in teaching basic volleyball skills at the elementary level.]]>
