A study investigated whether higher prevalence of reading disabilities among boys is related to gender bias in the prediction of reading from IQ. Data from 1,139 New Zealand children (collected during ages 5-13) indicate a significant intercept bias. Boys' predicted reading scores were systematically overestimated, thereby inflating IQ-reading…

The Clock Drawing test was administered to 143 regular education students (grades 1-4) to determine approximate grade levels at which skill on the test may be expected and to 30 students with learning disabilities. For the regular children, scores improved most between first and second grade. The disabled children scored significantly lower than…

Simultaneous 3- channel recorded auditory brainstem responses (ABR) were obtained from 20 neonates with various high-pass filter settings and low intensity levels. Results support the advocacy of less restrictive high-pass filtering for neonatal and infant ABR screening to air-conducted and bone-conducted clicks. (Author/JDD)

In a study by Toshiaki Hashimoto and colleagues (EC 611 142), 10 infants with developmental delay, poor eye contact, and poor facial expression underwent magnetic resonance brain imaging and were later diagnosed with autism. This offered direct evidence of abnormality of the cerebellar vermis and the brainstem at the beginning stages of behavioral…

This study examined differences between Wechsler Intelligence Scale for Children-Third Edition (WISC-III) and Wechsler Intelligence Scale for Children-Revised (WISC-R) scores for 40 elementary students with learning disabilities. WISC-III Full Scale, Verbal, and Performance scores were lower than comparable WISC-R scores by one-third to one-half a…

A three-stage identification process is recommended for students suspected of having learning disabilities. This process examines discrepancy, causality, and the need for special education, and it complies with legal requirements. (Author)

This article addresses the continuity from early speech-language delays to later learning problems in school and recommends use of "language organization disorder" to describe the delay. Chronologies of the difficulties and methods for early detection are provided. A table summarizes 11 research studies on early language delays and later reading…

Research in the field of developmental disabilities has found direct links between severity of a personality trait or psychopathology and particular pathology of the deoxyribonucleic acid (DNA). From studies of behavior phenotypes, new psychiatric disorders are being recognized, such as Williams syndrome. The formulation of valid behavior…

A study tested the validity of the Diagnostic Assessment for the Severely Handicapped-II (DASH-II) for determining the presence of mania (bipolar disorder) in 22 individuals with severe mental retardation. Results found the mania subscale to be internally consistent and able to be used to classify manic and control subjects accurately. (Author/CR)

A study compared characteristics of individuals with mild retardation and clinically classified as autistic disorder (n=205), Pervasive Developmental Disorder Not Otherwise Specified (PDDNOS) (n=80), and other non-PDD disorders (n=174). Only a few items from the ICD-10 and DSM-IV discriminated the PDDNOS group from other disorders. Suggested…

The validity of the Clinical Evaluation of Language Fundamentals (Third Edition) for identification and description of language disorders following brain injury was evaluated in 11 adolescents with traumatic brain injury. In general, the measure identified only those individuals who had previously been diagnosed as language impaired, not those…

This study evaluated the use of the Dyslexia Screening Test (DST) in six primary schools in England with 44 children from 12 classes. Teachers perceived the DST to be useful and necessary. The great majority of teachers indicated that the test's findings were consistent with their expectations from pupils' classroom performance and that they…

A study investigated the effectiveness of a phenotypic checklist for identifying 110 males with fragile X syndrome and 79 controls, matched for age, level of cognitive development, and social adaptation. Results indicated that those boys who are likely to be diagnosed as having fragile X syndrome can be identified. (Contains references.)…

Thirty-four (Study 1) and 37 (Study 2) pairs of three-year-old children with and without mild learning problems were presented with a battery of five or six simple cognitive tasks. Children without learning problems performed at a significantly higher level on 17 of the 18 measures. (Contains references.) (Author/CR)

Describes the characteristics of an 11-year-old boy who represents the only documented case of an individual with Cornelia de Lange syndrome who also has above average cognitive functioning. Major diagnostic criteria for de Lange syndrome and comparisons with other severe and mild cases are discussed. (Author/CR)