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  • Title: Rating problem behaviors in outpatients with mental retardation: use of the Aberrant Behavior Checklist.
    Author: Freund LS, Reiss AL.
    Journal: Res Dev Disabil; 1991; 12(4):435-51. PubMed ID: 1792366.
    Abstract:
    Parent and teacher ratings of behavior problems of an outpatient sample of 110 children, adolescents, and young adults with IQs ranging from severe mental retardation to borderline were obtained using a modified version of the Aberrant Behavior Checklist (ABC). Using factor analytic techniques, the five-factor structure of the parent data corresponded extremely well with the five factors originally obtained from staff ratings of mentally retarded inpatients (i.e., Irritability, Withdrawal, Hyperactivity, Stereotypies, and Inappropriate Speech). Factor content was virtually identical between the parent and original ABC data with differences involving only one or two items per scale. The teacher data also revealed a factor structure that corresponded to the same five factors as the parent and original data. Although the teacher and parent factors showed a high degree of similarity, the teacher data suggested that the Stereotypies and Inappropriate Speech factors of the parent and original analyses were not the same constructs for teacher respondents. Age was related to the withdrawal factor for parent data; level of intellectual functioning was the only subject characteristic related to factor scale scores in both parent and teacher data. Test-retest reliabilities were adequate to excellent for all factors for both parent and teacher data. Parent-teacher cross-informant reliabilities were adequate for at least four of the factors. The results of the report indicate that the ABC is a useful, reliable instrument for assessing maladaptive behaviors in young, developmentally disabled outpatients.
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