This study, involving 64 students with specific learning disabilities, found positive correlations between the Wechsler Intelligence Scale for Children-III (WISC-III) and the Arithmetic subtest of the Wide Range Achievement Test-Revised (WRAT-R), the KeyMath-Revised, and the Peabody Picture Vocabulary Test-Revised, but not between the WISC-III and…

This study examined the performance of 48 students (mean age 10 years, 6 months) referred for evaluation of learning disabilities with the Wechsler Individual Achievement Test (WIAT) and the Woodcock-Johnson Psychoeducational Battery-Revised Tests of Achievement (WJ-R). The student sample consisted of 33 males and 15 females, all attended schools…

Comparison of Wechsler Intelligence Scale for Children (WISC)-Revised and WISC III IQs for 64 students with specific learning disabilities and 55 students with mental retardation (MR) found that correlations were lower than those reported in the WISC-III manual. Only Performance IQs for students with MR matched the correlations reported in the…

This study investigated the correlation between self-concept and reading achievement level in 20 reading-disabled students (mean age 10.3 years, mean grade level 4.75), having average intelligence. Self-concept was assessed using the Piers-Harris Children's Self-Concept Scale and reading achievement level by the Tennessee Comprehensive Assessment…

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…

This study compared the object naming, object recognition, reading, and spelling abilities of 22 adults, half with written language difficulties and half without. Significant positive relationships were obtained between object naming ability and reading ability, object naming and spelling, and reading and spelling performance. Results suggest that…

This study investigates the validity of the Stanford Binet Intelligence Scale-Fourth Edition (S-B:4) for use with students with learning disabilities. It compares the performance of 18 elementary-age students on the S-B:4 and the Kaufman Assessment Battery for Children (K-ABC). The subjects were identified by their school as having learning…

Measurement of cognitive abilities using the Inventory of Piaget's Developmental Tasks of 94 learning disabled fourth- and fifth-grade children found that a linear combination of reading and mathematics achievement yielded a significant positive correlation to cognitive ability. No sex differences were found. (Author/DB)

Classroom researchers are frequently urged to provide evidence of the reliability of their data. In the case of observational data, three approaches to this have emerged: observer agreement, generalizability theory, and measurement error. Generalizability theory provides the most powerful approach given an adequate data collection design, but…

This comparison of regression discrepancy model results for learning disability identification used published IQ-achievement and reliability coefficients and generic, mean values. Use of mean IQ-achievement values resulted in higher discrepancy rates for a clinical sample. Use of both mean IQ-achievement and reliability values resulted in higher…

A public school district in Alabama uses the Otis Lennon School Ability Test (OLSAT) in place of the Wechsler Intelligence Scale for Children (Revised) (WISC-R) as a screening device for students who are referred for possible special education placement. To determine the relationship between the two tests, Pearson product moment correlation…

Thirty-six children, aged four-five, completed four vocabulary measures: Peabody Picture Vocabulary Test-Revised, Picture Vocabulary subtest of the Test of Oral Language Development, Expressive One-Word Picture Vocabulary Test, and Receptive One-Word Picture Vocabulary Test. Only moderate correlations were found among these tests, implying that a…

This study investigated whether the Developmental Indicators for the Assessment of Learning-Revised (DIAL-R) norms, established with American children, are applicable to a Canadian population. Based on an early childhood model which incorporates ecological validity as well as predictive validity, the DIAL-R assesses three areas: motor, concepts…