The relationship between preferred objects associated with stereotypy, stereotypic behavior, and accuracy of responding during a counting task by a child with autism was analyzed. Teaching with high-preference objects occasioned more stereotypic behavior and less accurate counting than teaching with medium- and low-preference objects. (Author/DB)

Four studies analyzing body-rocking in individuals with mental retardation found: (1) rocking chairs are not necessarily preferred and produce higher amplitude rocking; (2) body-rocking characteristics were stable over a 21-month period; (3) when compared with body-rocking college students, persons with mental retardation engage in more…

Four experiments with six students with multiple profound disabilities examined the function of behavioral stereotypies and sensory modalities maintaining them. Findings are discussed in terms of the sensory and social reinforcers that maintain stereotypy, assessment procedures used to identify reinforcers, and the interpretation of assessment…

This study compared the occurrence and characteristics of self-stimulatory behaviors of 5 children with developmental delays and 10 nondisabled children (matched for either mental or chronological age). Few differences were found between groups in percentage of time spent in self-stimulatory behavior, the variety of such behaviors, the speed at…

The phenomena of the induction and entrainment of adjunctive behaviors was investigated in 8 people (ages 5-51) with severe or profound mental retardation who exhibited stereotypic behaviors. Seven of the eight demonstrated evidence of schedule-induced stereotypic behavior, whereas five also showed evidence of the entrainment of these behaviors by…

Mentally retarded emotionally disturbed children (N=31) were compared on the Child Depression Inventory and the Child Behavior Profile with 31 children in a normal school setting. Correlational data showed a strong relationship between the cut-off scores for both measures suggesting that similarities exist between depression in mentally retarded…

A case study is used to argue that the function of the aggressive behavior of a young woman with severe mental retardation was to avoid or escape the termination of a chain of complex stereotyped ritual behaviors. This is an example of complex interaction between two behaviors and illustrates the need for very careful analysis of the functions of…

The rates and durations of stereotypic behaviors in four adolescents with severe mental retardation were measured during two daily vocational training sessions and during contiguous periods of leisure in special education classrooms. The major differences in stereotypy between leisure and vocational training were differences in episode length.…

Data concerning maladaptive behavior obtained on a sample of persons (n=8255) with mild to profound mental retardation and aged from birth to 98 years were factor analyzed resulting in identification of 2 principal factors for children, 3 for adolescents and young adults, and three and 4 for middle and older adults, with level of retardation also…

This study evaluated a method for assessing the behavioral function of severe self-injury in four adults with severe/profound mental retardation. Initial assessment included analyzing within-session trends and fluctuations in rates of self-injury by plotting the frequency within each minute of the session. (DB)

This article discusses clinical application of functional analysis in developmental disabilities, reviewing issues related to treatment logic and development. The article then approaches functional analysis as a research method, reviewing three areas of research: analysis of diverse response topographies, analysis of basic behavioral processes,…

This article reviews literature on the responses of direct care staff to challenging behaviors of individuals with mental retardation. The paper constructs a behavior analytic description of the functions of care staff behavior in relation to their clients' challenging behaviors, draws a distinction between contingency-shaped and rule-governed…

A study tested whether four students with mental retardation would substitute task-related behaviors for stereotypic behaviors when opportunity for active responding did or did not match level of motoric responding in a free-operant baseline. Students did substitute behaviors, with stereotypic behaviors occurring 1.5-14 times as much in the…

This case study focused on an adult with severe disabilities and multiple problem behaviors fitting a pattern of behavioral escalation. Functional assessment indicated that use of rule statements by the teacher was related to occurrence and escalation of problem behaviors. Elimination of rule statements was an effective instructional intervention…

A follow-up study of 26 children (ages 5-13) with attention deficit hyperactivity disorder and low intelligence found that children identified with both characteristics have significant behavioral and emotional problems while in their early adolescence. A significant minority had problems at school and with the law. (CR)