Achievement motivation in sport.
D000124:Achievement; D000339:Affect; D001007:Anxiety / Q000523:psychology; D001076:Aptitude; D002648:Child; D003071:Cognition; D004532:Ego; D006801:Humans; D007389:Internal-External Control; D008960:Models, Psychological; D009042:Motivation; D012309:Risk-Taking; D013177:Sports