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Adina M Piovesana, Jessica L Harrison, Jacob J Ducat
PURPOSE: This study aimed to develop a motor-free short-form of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V) that allows clinicians to estimate the Full Scale Intelligence Quotients of youths with motor impairments. METHOD: Using the reliabilities and intercorrelations of six WISC-V motor-free subtests, psychometric methodologies were applied to develop look-up tables for four Motor-free Short-form indices: Verbal Comprehension Short-form, Perceptual Reasoning Short-form, Working Memory Short-form, and a Motor-free Intelligence Quotient...
December 1, 2017: Assessment
Thierry Lecerf, Gary L Canivez
Interpretation of the French Wechsler Intelligence Scale for Children-Fifth Edition (French WISC-V; Wechsler, 2016a) is based on a 5-factor model including Verbal Comprehension (VC), Visual Spatial (VS), Fluid Reasoning (FR), Working Memory (WM), and Processing Speed (PS). Evidence for the French WISC-V factorial structure was established exclusively through confirmatory factor analyses (CFAs). However, as recommended by Carroll (1995); Reise (2012), and Brown (2015), factorial structure should derive from both exploratory factor analysis (EFA) and CFA...
December 28, 2017: Psychological Assessment
Ana Hernández, Cristina Aguilar, Èrica Paradell, María R Muñoz, Louis-Charles Vannier, Frédérique Vallar
BACKGROUND: This study examines the effect of parental educational levels, sex, and family structure on the WISC-V Full Scale IQ (FSIQ) and primary index scores (VCI, VSI, FRI, WMI, and PSI) in a representative sample of children from Spain ( N = 1008). METHOD: Differences between demographic groups were examined using independent-samples t-test , ANOVA and Hochberg post hoc tests. A multiple regression analysis was performed to examine whether demographic variables could predict children’s FSIQ score...
November 2017: Psicothema
Lisa M Grant, Pauline Prince
The purpose of this paper is to examine the Fluid Reasoning Index of the Wechsler Intelligence Test for Children, Fifth Edition (WISC-V), and determine how fluid-reasoning skills relate to academic skill acquisition in the classroom setting. We also examine the myriad of ways within which learning and learning disabilities can be defined. Also, we plan to examine a brief review of the definition of a Specific Learning Disability and review some of the leading theories related to the Pattern of Strengths and Weaknesses model...
July 2017: Applied Neuropsychology. Child
Gary L Canivez, Marley W Watkins, Stefan C Dombrowski
The factor structure of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V; Wechsler, 2014a) standardization sample (N = 2,200) was examined using confirmatory factor analyses (CFA) with maximum likelihood estimation for all reported models from the WISC-V Technical and Interpretation Manual (Wechsler, 2014b). Additionally, alternative bifactor models were examined and variance estimates and model-based reliability estimates (ω coefficients) were provided. Results from analyses of the 16 primary and secondary WISC-V subtests found that all higher-order CFA models with 5 group factors (VC, VS, FR, WM, and PS) produced model specification errors where the Fluid Reasoning factor produced negative variance and were thus judged inadequate...
April 2017: Psychological Assessment
Gary L Canivez, Marley W Watkins, Stefan C Dombrowski
The factor structure of the 16 Primary and Secondary subtests of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V; Wechsler, 2014a) standardization sample was examined with exploratory factor analytic methods (EFA) not included in the WISC-V Technical and Interpretive Manual (Wechsler, 2014b). Factor extraction criteria suggested 1 to 4 factors and results favored 4 first-order factors. When this structure was transformed with the Schmid and Leiman (1957) orthogonalization procedure, the hierarchical g-factor accounted for large portions of total and common variance while the 4 first-order factors accounted for small portions of total and common variance; rendering interpretation at the factor index level less appropriate...
August 2016: Psychological Assessment
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