title: A cluster analysis of institutionalized mentally retarded individuals.
abstract: The scores of two samples of 200 subjects each on five factors of a measure of adaptive behavior were subjected to cluster analysis using two hierarchical agglomerative clustering methods. Three clusters were found that proved stable across clustering methods, subject samples, and time points 3 years apart. In addition, cluster membership was shown to be meaningfully associated with a number of demographic characteristics and neurological and sensory handicaps. The three-cluster solution thus possesses some desirable features, but its practical utility remains to be demonstrated.
authors.affiliation: MRRC-Lanterman Developmental Center Research Group, UCLA School of Medicine.
authors.forename: A B
authors.initials: AB
authors.lastname: Silverstein
authors.forename: G D
authors.initials: GD
authors.lastname: Lozano
authors.forename: J F
authors.initials: JF
authors.lastname: White
mesh_terms: D000203:Activities of Daily Living; D002140:California; D006233:Persons with Disabilities / Q000523:psychology; D006801:Humans; D007326:Institutionalization; D008607:Intellectual Disability / Q000145:classification* / Q000523:psychology; D012917:Social Adjustment; D013029:Space-Time Clustering