title: Analysis of performances by normals and retardates on Piagetian reasoning assessments as a function of verbal ability.
mesh_terms: D000293:Adolescent; D001076:Aptitude; D002648:Child; D003071:Cognition; D004519:Education, Special; D006801:Humans; D008607:Intellectual Disability; D007360:Intelligence; D007804:Language Development; D014706:Verbal Learning; D014825:Vocabulary