Background/Context: Previous research in educational assessment has consistently emphasized the importance of reliability as a cornerstone of test quality. Traditional measures of reliability, such as test-retest and split-half reliability, offer a broad view of how internally consistent a measure is but overlook the variability in this internal…

Background: The Learning Disability Screening Questionnaire (LDSQ) has been shown to have high sensitivity and specificity to identify those who are likely to meet intellectual disability diagnostic criteria (McKenzie, et al. [McKenzie K., 2015]). However, there is no independent research to date to support these findings. Materials and Methods:…

The purpose of this study is to construct and evaluate diagnostic battery tests of verbal and non-verbal learning disabilities for students in the Arabic schools. 612 students were in the 3rd, 4th and 5th grades of primary school were involved, mostly from Egypt and Saudi Arabia. Their ages ranged from 7.94-10.98 with mean age = 9.62 and SD =…

As a result of the upcoming Federal reauthorization of the Individuals With Disabilities Education Improvement Act (IDEA), practitioners and researchers have begun vigorously debating what constitutes evidence-based assessment for the identification of specific learning disability (SLD). This debate has resulted in strong support for a method that…

Published by the Canadian Test Centre (CTC), "Insight" represents a group-administered test of cognitive functioning that has been built entirely upon the Cattell-Horn-Carroll (CHC) theoretical framework. "Insight" is intended to be administered by educators and screen entire classrooms for students who present learning…

The Wechsler Intelligence Test for Children -- Fifth Edition (WISC-V) is a comprehensive intellectual ability assessment for children. The WISC-V was developed over the course of five years by an expert team including doctoral-level scientists and clinicians and an advisory panel, who provided expert advice about intellectual ability testing,…

Whenever a major intelligence or achievement test is revised, there is always renewed interest in the underlying structure of the test as well as a renewed interest in the scoring, administration, and interpretation changes. In this interview, Amy Gabel discusses the most recent revision of the "Wechsler Intelligence Scale for Children-Fifth…

In the present investigation, the authors provide internal consistency reliabilities for Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) subtest and Index discrepancy scores using the standardization sample as the data source. Reliabilities ranged from 0.55 to 0.88 for subtest discrepancy scores and 0.80 to 0.91 for Index discrepancy…

Examined records of 170 learning-disabled students to determine stability of Wechsler Intelligence Scale for Children-Revised (WISC-R) test scores. WISC-R was readministered three years later to 150 subjects. Stability coefficients were .72, .70, and .74 for Verbal, Performance, and Full Scale Intelligence Quotient scores. Results suggest WISC-R…

Investigation of the stability of Wechsler Adult Intelligence Scale Revised scores of 25 college students over a 4-year period found that global and subtest scores were highly stable. Subtest scores tended to be higher on the retest, but global scores were not despite four years of educational experiences between test administrations. (Author/DB)

Assessed the degree of comparability between the tests over time for two samples of referred adolescents of borderline intelligence. Results indicated that the Wechsler Adult Intelligence Scale-Revised significantly overestimated the Wechsler Intelligence Scale for Children-Revised by three to five points. Differences were most marked at the lower…

Examined whether Kaufman Assessment Battery for Children (K-ABC) could discriminate between learning disabled and normal preadolescents. Tested 43 learning disabled (LD) students and 20 students without learning disabilities. Results indicated that the Achievement score relative to the Mental Processing Composite score was the only measure to…

Although differences in composite Wechsler Intelligence Scale for Children--Revised (WISC-R) measures were exhibited by children with mental retardation, learning disabilities, and psychological or behavioral disorders, few significant group differences were exhibited. Caution is necessary in making diagnostic statements based on WISC-R profile…

Students (n=210) in learning disabilities research centers were administered the Wechsler Intelligence Scale for Children-Revised and the Woodcock-Johnson Psychoeducational Battery-Revised. A model considering the reliability of each measure identified learning disabilities three times more often than a regression analysis model. The regression…