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Fenollar-Cortés, Javier; López-Pinar, Carlos; Watkins, Marley W. – International Journal of School & Educational Psychology, 2019
The factorial structure of the WISC-IV for 859 Spanish children diagnosed with ADHD was examined. A bifactor model with the four factors first identified by Wechsler (2003a) was the best fit to the data. The Coding and Symbol Search subtests were particularly poor measures of "g" but relatively strong measures of the Processing Speed…
Descriptors: Foreign Countries, Intelligence Tests, Attention Deficit Hyperactivity Disorder, Test Validity
Naglieri, Jack A.; Taddei, Stefano; Williams, Kevin M. – Psychological Assessment, 2013
This study examined Italian and U.S. children's performance on the English and Italian versions, respectively, of the Cognitive Assessment System (CAS; Naglieri & Conway, 2009; Naglieri & Das, 1997), a test based on a neurocognitive theory of intelligence entitled PASS (Planning, Attention, Simultaneous, and Successive; Naglieri & Das,…
Descriptors: Factor Analysis, Children, Adolescents, Cognitive Tests
Nelson, Jason M.; Canivez, Gary L. – Psychological Assessment, 2012
Empirical examination of the Reynolds Intellectual Assessment Scales (RIAS; C. R. Reynolds & R. W. Kamphaus, 2003a) has produced mixed results regarding its internal structure and convergent validity. Various aspects of validity of RIAS scores with a sample (N = 521) of adolescents and adults seeking psychological evaluations at a university-based…
Descriptors: Factor Analysis, Intelligence, Validity, Factor Structure
Immekus, Jason C.; Maller, Susan J. – Educational and Psychological Measurement, 2010
Multisample confirmatory factor analysis (MCFA) and latent mean structures analysis (LMS) were used to test measurement invariance and latent mean differences on the Kaufman Adolescent and Adult Intelligence Scale[TM] (KAIT) across males and females in the standardization sample. MCFA found that the parameters of the KAIT two-factor model were…
Descriptors: Intelligence, Factor Structure, Intelligence Tests, Factor Analysis
Watkins, Marley W. – Psychological Assessment, 2010
The structure of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV; D. Wechsler, 2003a) was analyzed via confirmatory factor analysis among a national sample of 355 students referred for psychoeducational evaluation by 93 school psychologists from 35 states. The structure of the WISC-IV core battery was best represented by four…
Descriptors: Intelligence, School Psychologists, Factor Structure, Measures (Individuals)
Snow, Anne V.; Lecavalier, Luc; Houts, Carrie – Journal of Child Psychology and Psychiatry, 2009
Background: Multivariate statistics can assist in refining the nosology and diagnosis of pervasive developmental disorders (PDD) and also contribute important information for genetic studies. The Autism Diagnostic Interview-Revised (ADI-R) is one of the most widely used assessment instruments in the field of PDD. The current study investigated its…
Descriptors: Intelligence, Autism, Factor Structure, Factor Analysis
Christensen, Bruce K.; Girard, Todd A.; Bagby, R. Michael – Psychological Assessment, 2007
An eight-subtest short form (SF8) of the Wechsler Adult Intelligence Scale, Third Edition (WAIS-III), maintaining equal representation of each index factor, was developed for use with psychiatric populations. Data were collected from a mixed inpatient/outpatient sample (99 men and 101 women) referred for neuropsychological assessment. Psychometric…
Descriptors: Psychometrics, Intelligence, Factor Structure, Intelligence Tests

Cramer, Kenneth M. – Educational and Psychological Measurement, 1998
Whether the one- or two-factor Wechsler or weighted sum scores (WSS) structural models adequately fit the Wechsler Intelligence Scale for Children III (WISC-III) covariance matrices was studied with samples of 2200 and 1118 children from previous studies. Both the WSS and supplemented models provided better fit than Wechsler's model but still…
Descriptors: Comparative Analysis, Factor Structure, Goodness of Fit, Intelligence

Parker, Kevin C. H.; Atkinson, Leslie – Psychological Assessment, 1995
The statistical ramifications of using equal weights, as compared to regression-based differential weights, in the estimation of Wechsler Adult Intelligence Scale--Revised (WAIS-R) factor scores were explored using WAIS standardization data, based on 1,880 adults. Differences resulting from the two approaches were substantial, as is discussed.…
Descriptors: Computation, Estimation (Mathematics), Factor Structure, Intelligence
Bowden, Stephen C.; Weiss, Lawrence G.; Holdnack, James A.; Lloyd, Delyth – Psychological Assessment, 2006
Examination of measurement invariance tests the assumption that the model underlying a set of test scores is directly comparable across groups. The observation of measurement invariance provides fundamental evidence for the inference that scores on a test afford equivalent measurement of the same psychological traits among diverse groups. Groups…
Descriptors: Intelligence, Factor Structure, Intelligence Tests, Age Differences
McGhee, Ron; And Others – 1994
The organization of cognitive factors in a sample of older adults was investigated by a joint factor analysis of the subtests from the Woodcock-Johnson Psychoeducational Battery-Revised (WJ-R) and the Detroit Tests of Learning Aptitude-Adult (DTLA-A). Two extensive batteries were administered, following R. W. Woodcock's recommendation that in…
Descriptors: Cognitive Ability, Factor Analysis, Factor Structure, Intelligence
Rozencwajg, Paulette – European Journal of Psychology of Education, 2003
The aim of this study on 42 seventh graders (ages 12-13) was to determine whether and to what extent students' metacognitive level is inked to their conceptualization and performance in problem solving at school, especially science problems. This hypothesis is supported by a number of studies showing that metacognition is a factor in learning. Two…
Descriptors: Intelligence, Intelligence Tests, Problem Solving, Metacognition
Berkay, Paul; And Others – 1994
Instructions for the administration of the Opinions about Deaf People Scale are given. This scale measures the beliefs of hearing adults about the capabilities of deaf adults. The somewhat ambiguous title of the instrument is designed to avoid leading respondents to respond in socially desirable ways. The instrument is based on misconceptions…
Descriptors: Adults, Attitude Measures, Attitudes, Beliefs