Introduction: Although the Aberrant Behavior Checklist (ABC) is one of the most widely used behavioral rating scales among people with developmental disabilities, very few studies have examined the factor structure of the non-English versions. Methods: The construct validity of the Norwegian ABC was examined in a clinical sample of children and…

Psychiatric hospitalization of children with autism spectrum disorder and/or intellectual disability is common, however, the effectiveness of this intervention is largely unknown. Thirty-eight clinically-referred children 8-19 years old admitted to a specialized inpatient psychiatry unit were assessed by a consistent caregiver on the Aberrant…

Guidance on effective interventions for disruptive behavior in young children with autism spectrum disorders (ASDs) is limited. We present feasibility and initial efficacy data on a structured parent training program for 16 children (ages 3-6) with ASD and disruptive behavior. The 6-month intervention included 11 Core and up to 2 Optional…

The atypical antipsychotic medication aripiprazole was evaluated using a randomized AB multiple baseline, double-blind, placebo-controlled design for the treatment of severe problem behavior with 4 children with intellectual and developmental disabilities. Functional analysis (FA) was conducted concurrent with the medication evaluation to…

Background: The triad of impairments characteristic of autistic spectrum disorders and severe challenging behaviours are reasonably common among adults with intellectual disabilities. The aim was to investigate whether they had an impact on lifestyle among such adults living in staff-supported community housing. Methods: Data were collected on the…

With the desegregation processes of services for people with intellectual disability (ID) that is taking place in most Western countries there is a need for more knowledge related to the prevalence of behavior problems among people living in community settings. This study investigates the prevalence of behavior problems among 140 adolescents and…

Objective: To determine the long-term safety and effectiveness of risperidone for severe disruptive behaviors in children. Method: A multisite, 1-year, open-label study of patients aged 5 to 14 years with disruptive behaviors and subaverage intelligence was conducted. Results: Seventy-three percent of the 504 patients enrolled completed the study.…

Objective: Olanzapine, an atypical antipsychotic, has been shown to be efficacious for treatment of psychotic and mood disorders in adults. This prospective, open-label study was conducted to examine the safety and usefulness of olanzapine in treating disruptive behavior disorders in adolescents with subaverage intelligence. Method: Sixteen…

For comparison with ratings previously obtained in New Zealand, the study analyzed subscales of the Aberrant Behavior Checklist using 531 moderately and severely retarded subjects from a residential institution in the United States. Sex failed to influence subscale scores, whereas age, country, and severity of retardation significantly affected…