title: Self-perceptions of scholastic ability at four grade levels.
mesh_terms: D000124:Achievement; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001076:Aptitude; D002648:Child; D002657:Child Development; D004522:Educational Status; D005260:Female; D006801:Humans; D008297:Male; D011581:Psychological Tests; D012649:Self Concept; D012737:Sex Factors