title: Locus of control in negro and white children at four age levels.
mesh_terms: D000124:Achievement; D000293:Adolescent; D001741:Black or African American; D000367:Age Factors; D001519:Behavior; D002648:Child; D004521:Educational Measurement; D005006:Ethnicity; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D007389:Internal-External Control; D008297:Male; D009790:Occupations; D012649:Self Concept; D012959:Socioeconomic Factors