Background: It is important that psychological structures have an impact on athlete performance, such as self-efficacy can be measured consistently. The aim of this study is to develop a measurement tool with psychometric properties that can measure the self-efficacy beliefs of athletes. Material and methods: The participants of the study consisted of 325 athletes (age 21.6 ± 4.2) who actively pursue sports in various sports branches in Turkey. In the validity and reliability analysis of the scale, exploratory and confirmatory factor analyzes were used. Cronbach’s Alpha reliability coefficient value of the total scale is .88. Results: The validity and reliability analysis results of the scale revealed that the scale was generally in perfect fit. As a result, it can be said that the Athlete Self Efficacy Scale (ASES) is a valid and reliable measurement tool and can be used to determine the self-efficacy levels of adult athletes. Conclusions: Validity and reliability studies of the Athlete Self Efficacy Scale should be repeated specific to the sport branch or in younger age groups. In addition, athlete's self-efficacy is a universal concept. In this respect, it is valid in other cultures and it is recommended to adapt the scale to other languages and cultures.



Author ORCID Identifier

Çalık Veli Koçak: https://orcid.org/0000-0002-1403-0812