An investigation was conducted of the displayed biobehavioral states of 5 students (ages 8-20) with profound mental retardation. Results indicated that state level can be reliably specified and that overall state characteristics can be used to classify subjects according to profile groups. (Author/JDD)

This study assessed the nonspeech behaviors associated with young stutterers (n=30, mean age 54 months) and normally fluent children's comparable fluent utterances. Findings suggested that children can be classified as stutterers on the basis of their nonspeech behaviors, which may reflect cognitive, emotional, linguistic, and physical events…

A cluster analytic study was conducted to derive behaviorally homogeneous subtypes of pervasive developmental disorders (PDD) based on a range of behavioral symptoms that characterize autism. Analysis of data on 34 children with PDD, 27 of whom met criteria for autism, indicated 4 distinct groups differing on independent measures of social,…

Analysis of data from the Behaviour Disorder Scale for 405 adults and adolescents with intellectual disability revealed that subjects exhibited a mean of 14 problem behaviors per person. Factor analysis identified two general syndromes (a conduct syndrome and an emotional syndrome), raising the possibility of dealing with sets of problem behaviors…

The Conners Rating Scale was used to identify psychoeducational, neuropsychological, and sociobehavioral variables in attempting to define subtypes within a population of 95 children (mean age 10.6 years) with learning disabilities (LD) or documented brain damage. Results supported the sociobehavioral component in LD subtyping and parallels…

Past research has established clear behavioral differences between Type A and Type B individuals. The manner in which these behavioral differences are represented in the self-definitions of Type As and Bs was examined in a group of 42 college students. The existence of Type A and B self-schemata was investigated using two tasks designed to measure…

Argues that rank order correlations may not be ubiquitously suitable for assessing the relations between children's behavior or characteristics at one age or in one situation, and those shown later or in another context. (HOD)