The Influence Of Self Confidence On Peak Performance Of Volleyball Athletes Smp Negeri 166 Jakarta

Abstract

The aim of this research is to obtain empirical data regarding the influence of self-confidence on peak performance of volleyball athletes at SMP Negeri 166 Jakarta. This research takes a quantitative approach using the Correlation Test technique with the Questionnaire method. The population of this study were all Volleyball Athletes at State Middle School 166 Jakarta with a sample of 52 people obtained using the Total Sampling technique. The data analyzed in this research is descriptive analysis and inferential analysis. Descriptive Analysis describes the characteristics of the data for each variable. Meanwhile, Inferential Analysis includes Normality Analysis, Linearity Analysis, Correlation Analysis, Linear Regression Analysis, and Coefficient of Determination Analysis. The research results show that there is a significant correlation where the self-confidence variable (X) contributes 97.6% to the peak performance variable (Y). This can be proven by the value of the regression equation Y = 16.238 + 3.336. The coefficient of determination shows that r2 = 0.976, meaning that 97.6% of peak performance is influenced by self-confidence in athletes. So this research concludes that there is a significant relationship between self-confidence and peak performance.