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Direct linkDombrowski, Stefan C.; McGill, Ryan J.; Watkins, Marley W.; Canivez, Gary L.; Pritchard, Alison E.; Jacobson, Lisa A. – Contemporary School Psychology, 2022
The Wechsler Intelligence Scale for Children's (WISC) factorial\theoretical structure has undergone numerous substantive changes since it was first developed, and each of these changes has subsequently been questioned by assessment experts. Given remaining questions about the structure of the latest revision, the WISC-V, the present study used…
Descriptors: Children, Intelligence Tests, Factor Structure, Factor Analysis
Fenollar-Cortés, Javier; Watkins, Marley W. – International Journal of School & Educational Psychology, 2019
The construct validity of the Spanish Version of the Wechsler Intelligence Scale for Children Fifth Edition (WISC-V[superscript Spain]) was investigated via confirmatory factor analysis. For all 15 subtests, the higher-order model preferred by Wechsler (2015b) contained five group factors but lacked discriminant validity. A bifactor model with…
Descriptors: Children, Intelligence Tests, Construct Validity, Test Reliability
Dombrowski, Stefan C.; Canivez, Gary L.; Watkins, Marley W. – Contemporary School Psychology, 2018
The Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V; Wechsler 2014a) "Technical and Interpretation Manual" (Wechsler 2014b) dedicated only a single page to discussing the 10-subtest WISC-V primary battery across the entire 6 to 16 age range. Users are left to extrapolate the structure of the 10-subtest battery from the…
Descriptors: Factor Structure, Children, Intelligence Tests, Test Reliability
Canivez, Gary L.; Watkins, Marley W.; McGill, Ryan J. – British Journal of Educational Psychology, 2019
Background: There is inadequate information regarding the factor structure of the Wechsler Intelligence Scale for Children -- Fifth UK Edition (WISC-V[superscript UK]; Wechsler, 2016a, Wechsler Intelligence Scale for Children-Fifth UK Edition, Harcourt Assessment, London, UK) to guide interpretation. Aims and methods: The WISC-V[superscript UK]…
Descriptors: Children, Intelligence Tests, Construct Validity, Factor Analysis
Styck, Kara M.; Villarreal, Victor; Watkins, Marley W. – School Psychology, 2020
Reading depends on the integration of both cognitive and motivational factors, yet reading motivation has received little attention in the research literature. The purpose of the present study was to evaluate the psychometric properties of the Baylor Revision of the Motivation to Read Survey (B-MRS; Watkins & Browning, 2015) with a sample of…
Descriptors: Measures (Individuals), Reading Motivation, Middle School Students, Factor Analysis
Canivez, Gary L.; Dombrowski, Stefan C.; Watkins, Marley W. – Psychology in the Schools, 2018
This study examined the factor structure of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V) with four standardization sample age groups (6-8, 9-11, 12-14, 15-16 years) using exploratory factor analysis (EFA), multiple factor extraction criteria, and hierarchical EFA not included in the WISC-V "Technical and Interpretation…
Descriptors: Factor Structure, Children, Intelligence Tests, Age Groups
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
Richerson, Lindsay P.; Watkins, Marley W.; Beaujean, A. Alexander – Journal of Psychoeducational Assessment, 2014
Measurement invariance of the Wechsler Intelligence Scale for Children--Fourth Edition (WISC-IV) was investigated with a group of 352 students eligible for psychoeducational evaluations tested, on average, 2.8 years apart. Configural, metric, and scalar invariance were found. However, the error variance of the Coding subtest was not constant…
Descriptors: Intelligence Tests, Measurement, Factor Analysis, Factor Structure
Yerys, Benjamin E.; Nissley-Tsiopinis, Jenelle; de Marchena, Ashley; Watkins, Marley W.; Antezana, Ligia; Power, Thomas J.; Schultz, Robert T. – Journal of Autism and Developmental Disorders, 2017
Scientists and clinicians regularly use clinical screening tools for attention deficit/hyperactivity disorder (ADHD) to assess comorbidity without empirical evidence that these measures are valid in youth with autism spectrum disorder (ASD). We examined the prevalence of youth meeting ADHD criteria on the ADHD rating scale fourth edition…
Descriptors: Rating Scales, Attention Deficit Hyperactivity Disorder, Behavior Problems, Incidence
Gignac, Gilles E.; Watkins, Marley W. – Multivariate Behavioral Research, 2013
Previous confirmatory factor analytic research that has examined the factor structure of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) has endorsed either higher order models or oblique factor models that tend to amalgamate both general factor and index factor sources of systematic variance. An alternative model that has not yet…
Descriptors: Intelligence Tests, Test Reliability, Factor Structure, Models
Devena, Sarah E.; Gay, Catherine E.; Watkins, Marley W. – Journal of Psychoeducational Assessment, 2013
Confirmatory factor analysis was used to determine the factor structure of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) scores of 297 children referred to a children's hospital in the Southwestern United States. Results support previous findings that indicate the WISC-IV is best represented by a direct hierarchical…
Descriptors: Intelligence Tests, Factor Analysis, Factor Structure, Children
Watkins, Marley W.; Beaujean, A. Alexander – School Psychology Quarterly, 2014
The Wechsler Preschool and Primary Scale of Intelligence-Fourth Edition (WPPSI-IV; Wechsler, 2012) represents a substantial departure from its predecessor, including omission of 4 subtests, addition of 5 new subtests, and modification of the contents of the 5 retained subtests. Wechsler (2012) explicitly assumed a higher-order structure with…
Descriptors: Preschool Children, Intelligence Tests, Factor Structure, Factor Analysis
Nakano, Selena; Watkins, Marley W. – Psychology in the Schools, 2013
The Native American population is severely underrepresented in empirical test validity research despite being overrepresented in special education programs and at increased risk for psychoeducational evaluation. The structural validity of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) was investigated with a sample of 176,…
Descriptors: American Indian Students, Disproportionate Representation, Special Education, Test Validity
Watkins, Marley W.; Canivez, Gary L.; James, Trevor; James, Kate; Good, Rebecca – International Journal of School & Educational Psychology, 2013
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…
Descriptors: Construct Validity, Intelligence Tests, Children, Learning Disabilities
Canivez, Gary L.; Watkins, Marley W. – Psychological Assessment, 2010
The present study examined the factor structure of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV; D. Wechsler, 2008a) standardization sample using exploratory factor analysis, multiple factor extraction criteria, and higher order exploratory factor analysis (J. Schmid & J. M. Leiman, 1957) not included in the WAIS-IV Technical…
Descriptors: Intelligence, Factor Structure, Measures (Individuals), Factor Analysis
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