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…

The purpose of this study was to determine the constructs measured by the WISC-IV and the consistency of measurement across large normative and clinical samples. Competing higher order four- and five-factor models were analyzed using the WISC-IV normative sample and clinical subjects. The four-factor solution is the model published with the test…

Irish educational psychologists frequently use the Wechsler Intelligence Scale for Children-Fourth U.K. Edition (WISC-IV[superscript UK]) in clinical assessments of children with learning difficulties. Unfortunately, reliability and validity studies of the WISC-IV[superscript UK] have not yet been reported. This study examined the construct…

Compared Wechsler Intelligence Scale for Children-Revised (WISC-R) tests and retest scores for 322 learning disabled children over three years for factor structure and structure stability. Results suggest that WISC-R factor structure was stable over three years. Coefficients of congruence indicated factorial similarity between groups of Black and…

Three significant canonical correlations were obtained from the analysis of the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Woodcock-Johnson Tests of Cognitive Ability (WJTCA) to examine test overlap with a sample of suspected learning disabled children. Results indicate a substantial portion of the variance is independent.…

Examined whether common factor structure was evident in Wechsler Intelligence Scale for Children-Revised and Adaptive Behavior Scale-School Edition for 171 children referred for evaluation of learning and behavior problems. Results indicated no common factor structure in instruments, Verbal Comprehension, Perceptual Organization, Independent…

Among the findings was that the factor structure of learning disabled children on the Wechsler Intelligence Scale for Children-Revised was somewhat more fractionated and complex than for normals, but not as complex as for reading disabled children. (Author/DLS)

Major research findings relevant to use of the Wechsler Digit Span subtest in psychoeducational assessment are summarized. The cognitive processes and behavioral characteristics which determine performance on Digit Span are related to complex abilities. Recommendations and implications for research and assessment practice are presented.…

This study evaluated the construct validity of the Wechsler Intelligence Scale for Children, Third Edition (WISC-III) with children (ages 8 to 13) having learning disabilities who were either Hispanic (N=120) or Non-Hispanic white (N=120). Factor analyses found that the WISC III has a three factor structure consisting of verbal comprehension,…

Factor analyses of the Wechsler Intelligence Scale for Children-Revised (WISC-R) have typically yielded three factors: two generally understood to reflect basic verbal and performance dimensions and one about which there is no consensus with regard to what is measured. The aim of the present study is to elaborate the meaning of the third factor by…

The factor structure of the Wechsler Intelligence Scale for Children (Revised) (WISC-R) for both regular and special education populations has been well documented. Published data have also indicated that the factor structure of the WISC-R is similar across ethnic groups. With the development of the new WISC-III, comparable information is not yet…

The Wechsler Intelligence Scale for Children (WISC) has a long history, dating back to the 1930s, when it was devised specifically for measuring the intelligence of children through verbal and performance subtests. Intelligence quotients (IQs) are developed for verbal and performance skills. The subtests, their factors, indices derived from them,…

A total of 125 white children from three counties in Georgia (selected as representative of small rural and medium and large industrial urban populations) were administered a battery of tests in three phases of their schooling: (1) during the summer preceding their admission to the first grade, (2) near the end of the first grade, and (3) near the…

Cognitive differences between 987 LD children and 178 EH children in public schools on a psychoeducational assessment battery were studied, and differences in factor structure were investigated. Caution is suggested in interpreting the results of multivariate statistical analyses, which indicated heterogeneity in the matrices of LD and EH…