This study found that 331 Toronto (Ontario, Canada) adolescent and adult subjects with learning disabilities could be grouped into three subtypes: (1) arithmetic disability, (2) reading disability, and (3) reading and arithmetic disabilities. Each group differed significantly from the others on tests of reading, spelling, memory, and other…

This study of 102 individuals with autism found that the brainstem and cerebellum increased in size with age but were significantly smaller in autistic patients than in controls. Analysis of the speed of development suggests that brainstem and vermian abnormalities in autism were due to an early insult and hypoplasia rather than to progressive…

Classification of arithmetic disorders is predicated on neuropsychological features and associated learning disabilities. Assesses the compatibility of these classifications on a nonreferred, population-based cohort of children (N=139) with developmental dyscalculia. Concludes that children with dyscalculia and disabilities in reading and/or…

Usable responses from 54% of adult-basic-education providers (n=555) in nine states identified how they determine whether adult clients have disabilities, the number with disabilities, and the total with disabilities in the region. Inner city/urban and smaller programs reported significantly more clients with disabilities. (SK)

Explores use of tests with more- vs. less-precise age norms to identify disabilities in preschool children. Standard scores associated with the same raw score shifted gradually across age groups on tests with more precise norms, and shifted more dramatically on tests with less precise norms. Indicates that many preschool tests have norm tables…

A study involving 18 emergency homeless shelters in Los Angeles screened 169 homeless children (ages 6-12) for behavior disorders, learning disabilities, or mental retardation. Results found almost one half of sheltered homeless children screened positive for at least one disability requiring special education services, with behavior disorders…

A review of the literature finds that the criteria developed by Stark and Tallal (1981) for the selection of children with specific language impairment for research purposes continue to be used, in part or in whole, in current research. Additional information on the use of norm-referenced tests with this population is also provided. (Author/DB)

Simultaneous auditory brainstem responses (ABRs) to click stimuli at 30 and 60 decibels were recorded from 16 full-term neonates with 4 different electrode arrays. Results indicated that ABR waveforms were morphologically similar to those recorded in adults. Waveform expression was variable with different electrode recording montages. (Author/DB)

A study used maternal- and child-health clinics covering 98% of the Norwegian population for screening pervasive developmental disorders. In the population of children ages 3-14 years, the minimum prevalence estimate for childhood autism was 4 to 5 per 10,000, and did not confirm the high estimates suggested more recently. (Author/CR)

A review of 32 epidemiological surveys of autism and pervasive developmental disorders found four surveys yielded estimates for childhood disintegrative disorder (CDD) ranging from 1.1 to 6.4 per 100,000. It is concluded that CDD is very rare and its prevalence is 60 times less than that of autistic disorder. (Contains references.) (Author/CR)

This study compared students diagnosed with learning disabilities (n=2,053) and students without learning disabilities (n=2,200) on the Learning Disability Index (LDI). Subsamples of specific reading and math disabilities permitted further assessment. Analysis indicated the LDI resulted in a correct diagnostic decision only 55 to 64 percent of the…

This article offers a list of World Wide Web sites with general collections of resources on students with dual exceptionalities and also on sources of information on specific disabilities. (Contains 3 references.) (LC)

Reviews the history of the terms "impairment,""disability," and "handicap" in the stuttering literature and proposes alternate definitions that are more consistent with the use of the International Classification of Impairments, Disabilities, and Handicaps. A model is proposed for discussing the outcomes of various…

Recent years have seen a surge of interest in assessment instruments for diagnosing autism in children. Instruments have generally been developed and evaluated from a research perspective. The Autism Diagnostic Observation Schedule-Generic (ADOS-G), Autism Diagnostic Interview-Revised (ADI-R), and Gilliam Autism Rating Scale (GARS) have received…

This paper reports on the development of a battery of phonological processing tasks to screen adults with dyslexia. Tasks examined reversed spoonerism, phonological choice, working memory, and vocabulary with confusable alternatives. All tasks showed high discrimination between adults with dyslexia and a control group. Tasks also correlated with…