Construction and validation of the German coach-rating scale to assess achievement-motivated behavior in team sports (AMBIS-T)

Achievement motivation has been identified as a relevant criterion to assess athletic talent. In the context of talent selection decisions, popular use self-report questionnaires presented higher risks social desirability. Consequently, shift towards more robust methods such assessment achievement-motivated behavior with coach-rating scale in individual sports was suggested. 1 The purpose this study adapt and validate from team sports, involving 48 German-speaking coaches examining behaviors their 527 youth athletes well self-ratings 250 athletes. found display good fit observed data (e.g., CFI = .98; RMSEA .04) measure reliably factors proactivity, ambition, commitment 12 items (test–retest reliability r tt ≥.75; Cronbach's alpha α ≥ .80 for all scales). With exceptions proactivity interrater reliability, concurrent validity ambition construct validity, psychometric properties were satisfactory. averaged ratings two evaluating is recommended reduce possible bias sports.