Motivational orientation of overachieving and underachieving elementary school children.
D000124:Achievement; D000704:Analysis of Variance; D002648:Child; D005120:Extraversion, Psychological; D006801:Humans; D007360:Intelligence; D007439:Introversion, Psychological; D009042:Motivation; D011581:Psychological Tests; D014477:Underachievement