Abstract: The test and development process of the Basic Needs Satisfaction Scale (BNSS) in high school students’ PE class are presented in this study. The BNSS is a domain-specific self-report instrument designed to assess the perceptions of the extent to which the innate needs for autonomy, competence, and relatedness are satisfied in students’ PE class. The selected samples consist of 930 junior high school students. 930 students are measured by the BNSS, and 30 students for the inspection of the retest reliability. The results demonstrate an adequate factor structure, internal consistency, retest reliability and structure validity. The item load in each factor is between .462-.795. The internal consistency coefficient in each reliability is between .817-.866. Retest reliability was between .725-.802. Therefore, it is effective to use BNSS to assess the basic needs satisfaction in high school students’ PE class.

Key words: basic needs satisfaction, reliability, validity