title: The factorial composition of two individually administered achievement tests with educable mental retardates.
mesh_terms: D000293:Adolescent; D004495:Education of Persons with Intellectual Disabilities; D004521:Educational Measurement; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000145:classification*; D008297:Male; D008433:Mathematics; D011581:Psychological Tests; D011932:Reading; D014706:Verbal Learning