title: Locus of control and achievement in middle- and lower-class children.
mesh_terms: D000124:Achievement; D002648:Child; D002652:Child Behavior; D002657:Child Development; D005260:Female; D006801:Humans; D007360:Intelligence; D007389:Internal-External Control; D008297:Male; D012054:Reinforcement, Psychology; D012574:Schools; D012649:Self Concept; D012917:Social Adjustment; D012919:Social Behavior; D012923:Social Class; D012927:Social Control, Informal