<![CDATA[This research was conducted with the aim of knowing a significant relationship between arm muscle power and the ability to serve in volleyball. This research is a correlation study with one independent variable, namely: arm muscle power (X), and one dependent variable, namely: volleyball service ability (Y). The sample in this study were 25 students of SMP Negeri 01 Seluar Bengkayang Regency. The data collection technique used in this study was by testing and measuring, namely, arm muscle power tests, and volleyball service accuracy tests. The prerequisite test in this study consisted of a normality test and a linearity test, while the hypothesis test consisted of product moment correlation and multiple regression. The results of this study concluded that for students of SMP Negeri 01 Seluar Bengkayang Regency: (1) There is a significant relationship between arm muscle power and the accuracy of serving in volleyball as evidenced by the value of r product moment (0.520) > r table (0.14). arithmetic F value (2.127)> F table (4.25). then the researcher can draw general conclusions that there is a relationship between arm power and the ability to serve volleyball in extracurricular students at SMP Negeri 01 Sejuang, Bengkayang Regency.]]>
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