Forty parents of children with autism or pervasive developmental disorder completed the Wing Subgroups Questionnaire, developed for subclassifying children into one of L. Wing's three hypothesized subgroups. Results indicated that the questionnaire has adequate external criterion-referenced validity, with similar subgroup ratings made by…

This study organizes items from seven behavior rating instruments into as few behavior clusters as possible. Methods used include card sort activities and a panel of experts examining items to establish their subgroup placement. Findings indicate a method for organizing behavior descriptors into clearly defined subgroupings and unifying behavior…

Approaches to the analysis of utterance disruptions are reviewed, and a system is proposed for analyzing disruptions in spontaneous language, with four disruption categories (pauses, repetitions, revisions, and orphans). Use of the system is illustrated using language samples from 10 traumatically brain-injured and 10 normally developing speakers…

A method for empirical classification of autistic and autisticlike children, based on behavior observations of 35 males and 11 females (ages 4-28 years) was examined. Factor and cluster analysis indicated four subtypes, characterized by perseverative thinking and play, motor disturbances, schizotypal/schizoid features, and anxiety and negativism.…

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…

Autism Behavior Checklists were completed for 52 autistic individuals (ages 2-31) and 62 nonautistic individuals, and data were analyzed using signal detection methodology. A single item (looks "through" people) combined with one of five other items discriminated as well as the sum scores, and further combinations did not improve…

The Autism Behavior Checklist was completed for 67 autistic and 56 mentally retarded and learning-disabled children (ages 6-15). The checklist was effective in classifying children when using either the full scale or only the more highly weighted items. Results did not support a single unidimensional scale or subdividing the checklist into five…

Designed for teachers and researchers interested in the study of the composing process, this guide introduces a method of analysis that can be applied to data from a range of different cases. Specifically, the guide offers a simple, direct coding scheme for describing the movements occurring during composing that involves four procedures: teaching…

This study found that 27 Chinese teachers' perceptions of 196 elementary students nominated as learning disabled or educable mentally retarded (based on identifying characteristics used in the United States) were significantly less favorable than ratings of students nominated as average or gifted. Discriminant analysis yielded 72.19 percent…