Students with attention-deficit/hyperactivity disorder (ADHD) often experience a host of negative academic outcomes, and deficits in reading and mathematics abilities contribute to these academic impairments. Students with ADHD may also have difficulties with written expression, but there has been minimal research in this area and it is not clear…

Assessment of clinical symptoms requires information from multiple informants. Discrepancies between informants' ratings can have significant implications in school settings (e.g., access to services, treatment planning, progress monitoring). This study examined parent-teacher discrepancies for ratings of internalizing and externalizing symptoms,…

The purpose of this study was to evaluate the degree with which Individualized Education Programs (IEPs) and 504 Plans prepared for middle school students with attention deficit/hyperactivity disorder (ADHD) conformed to best practices and included evidence-based services. Specifically, we examined the problem areas identified in the statement of…

These 2 studies investigated the factor structure of the Wechsler Intelligence Scale for Children-4th edition (WISC-IV; Wechsler, 2003a) with exploratory factor analysis (EFA; Study 1) and confirmatory factor analysis (CFA; Study 2) among 2 independent samples of gifted students. The EFA sample consisted of 225 children who were referred for a…

The Wechsler Intelligence Scale for Children--Fourth Edition (WISC-IV) is one of the most frequently used intelligence tests in clinical assessments of children with learning difficulties. Construct validity studies of the WISC-IV have generally supported the higher order structure with four correlated first-order factors and one higher-order…

This study investigated the predictive power of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) Full Scale IQ (FSIQ), the General Ability Index (GAI), and the WISC-IV index score composites on subsequent reading and math standardized test scores among high-achieving students. The sample consisted of 84 elementary-age students…

Orthogonal higher-order factor structure of the Cognitive Assessment System (CAS; Naglieri & Das, 1997a) for the 5-7 and 8-17 age groups in the CAS standardization sample is reported. Following the same procedure as recent studies of other prominent intelligence tests (Dombrowski, Watkins, & Brogan, 2009; Canivez, 2008; Canivez &…

The General Ability Index (GAI) is a composite ability score for the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) that minimizes the impact of tasks involving working memory and processing speed. The goal of the current study was to compare the degree to which the Full Scale IQ (FSIQ) and the GAI predict academic achievement…

This study is one of the first to investigate the relationship between low birth weight and cognitive outcomes in an urban, poor, prospectively designed African-American birth cohort. Multivariate analyses of the Pathways to Adulthood study, a subset of the Johns Hopkins Collaborative Perinatal study, compared low birth weight African-American…

IQ and achievement scores were analyzed for 678 children with attention-deficit/hyperactivity disorder (ADHD; 6-16 years of age, IQ=80) administered the Wechsler Intelligence Scale for Children-Third Edition (WISC-III; n=586) and Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV, n=92). Approximately 76% of children in both samples…

The relationships between Wechsler Intelligence Scale for Children-Third Edition (WISC-III) and the Cognitive Assessment System (CAS) with the Woodcock-Johnson Tests of Achievement (WJ-III) were examined for a sample of 119 children (87 males and 32 females) ages 6 to 16. The sample was comprised of children who were referred to a specialty clinic…

Summarizes a special journal issue that is intended to provide professionals and other members of the policy-shaping community with information concerning the appropriate role of IQ testing in school psychological services. Suggests that IQ testing is unfounded and has led the field of school psychology astray. (RJM)

Used computer simulation to examine the reliability of interpretations for Kaufman's "intelligent testing" approach to the Wechsler Intelligence Scale for Children (3rd ed.) (WISC-III). Findings indicate that factor index-score differences and other measures could not be interpreted with confidence. Argues that limitations of IQ testing…

Examines the Symbol, Search, Coding, Arithmetic, and Digit Span (SCAD) subtests of the Wechsler Intelligence Scale for Children (3rd ed.) (WISC-III) by comparing 363 students with learning and emotional disabilities to the WISC-III normative sample. Results indicate that the SCAD profile is neither a valid diagnostic indicator nor an important…

Analyzes whether the latest version of the Wechsler Intelligence Scale for Children (WISC-III) measures the same constructs across its 11 age spans and what constructs are measured by the WISC-III. Findings indicate that WISC-III does measure the same constructs across ages but does not measure Freedom from Distractibility. (RJM)