Breadth of attention and retention in mentally retarded and intellectually average children.
D000293:Adolescent; D000367:Age Factors; D001288:Attention; D002648:Child; D002675:Child, Preschool; D003118:Color Perception; D003463:Cues; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005556:Form Perception; D006801:Humans; D008607:Intellectual Disability / Q000145:classification; D007361:Intelligence Tests; D008568:Memory; D011582:Psychological Theory