Parents of 601 children and adolescents with mental retardation rated their children on the Aberrant Behavior Checklist-Community (ABC). Factor analysis revealed a factor structure similar to the original ABC but without the inappropriate speech factor. Analysis of subject variables revealed main effects for gender, age, and classroom assignment…

Scores from the Child Behavior Checklist and the Client Development Evaluation Report for 67 children and adolescents with mental retardation were examined to evaluate the factorial validity of the instruments. Results found that both instruments were successful in measuring maladaptive behaviors and both yielded two-dimensional representations of…

The psychometric properties of the Motivation Assessment Scale were examined using 90 ratings of different problem behaviors among 86 individuals with mental retardation. Although reliability and internal consistency were generally poor, the results depended upon topographies of problem behavior and methods of calculation. The construct validity…

Eighteen adolescents and adults with severe/profound intellectual disability were rated by two staff members using the Motivation Assessment Scale to identify variables maintaining their aggressive behaviors. Analysis of interrater reliability indicated that for some individuals the scale may not represent a feasible alternative to more formal…

A study tested the psychometric properties of the Stereotyped Behavior Scale, an empirically developed behavior rating scale for adolescents and adults with mental retardation. Forty-five adults with mental retardation and various rates of stereotypies participated. Results found the scale had high rates of reliability, validity, and interrater…

This replication study found that only 16 of 55 raters agreed on the category of reinforcement maintaining a disabled individual's self-injurious behavior after using the Motivation Assessment Scale. Additionally, only 15 percent of the correlation coefficients obtained were above 80 percent, and none of the reliability scores was above 80…

A study used the Questions about Behavior Function Scale to examine the functions of five severe problem behaviors (self-injurious behavior, aggression, stereotypies, pica, and rumination) in 417 institutionalized persons with mental retardation. The most common function for all behaviors except aggression was nonsocial. Aggression was maintained…

Differences in parent and teacher ratings of social-emotional behavior among 198 preschool-age children with developmental delays and 198 without significant developmental problems were examined. The children with developmental delays were rated by both groups as having significantly lower levels of social skills and significantly higher levels of…

Parent and teacher ratings on the Aberrant Behavior Checklist with an outpatient sample of 110 children, adolescents, and young adults with mental retardation found that the 5-factor structure of both parent and teacher data corresponded very well with the 5 factors originally obtained from staff ratings of mentally retarded inpatients. (Author/DB)

The Child Behavior Rating Form (CBRF) was adapted for use with children having mental retardation and was named the Nisonger CBRF. Independent factor analyses of parent and teacher ratings for 369 children produced 2 Social Competence subscales and 6 Problem Behavior subscales. Internal consistency was generally high and parent-teacher agreement…

A study compared the Aberrant Behavior Checklist (ABC) and the Behavior Problems Inventory (BPI) for assessing the maladaptive behavior of 226 adults, mostly with severe or profound mental retardation. Individuals with elevated BPI scores generally had higher ABC scores, however, the extent of covariation differed across subscales. (Contains…

Teachers completed the Connors' Teacher Rating Scale on 100 boys (ages 6-8) who either had attention deficit-hyperactivity disorder (ADHD), mental retardation, both ADHD and mental retardation, or no disability. Children with mental retardation were generally more anxious than normal peers, but there were few differences between the normal IQ ADHD…

Evaluation of the factor validity and reliability of the Aberrant Behavior Checklist (Japanese version) with 322 subjects (mean age 30) with moderate to profound mental retardation found most items loading on the same factors as in the original factor solution, high coefficient alphas across 5 subscales, high test-retest reliability, and…

Social skills and levels of inappropriate assertiveness/impulsiveness were assessed using the Matson Evaluation of Social Skills with Youngsters, with 17 autistic children (ages 2-21) and 17 matched nonautistic children. Significant differences in both appropriate and inappropriate social behaviors were found. Results suggest the importance of…