Validation of the Polish version of Sport Motivation Scale (SMS). Effect of gender, level of participation and sport type on intrinsic and extrinsic motives

Sport Motivation Scale (SMS), based on self-determination theory was validated into Polish conditions. The study was aimed to assess psychometric properties of the SMS on a sample of Polish athletes as well as to determine relationships between SMS factors and gender, level of participation and type of practiced sport. The sample comprised 613 (380 male and 233 female) individual and team, recreational and high performance athletes, aged 19.12 years (SD = 2.31). The results demonstrated a relatively high internal consistency and test-retest reliability of the SMS subscales. Confirmatory Factor Analysis indicated that the fit of the SMS model to data was not fully satisfactory.