Orthogonal higher order structure of the Wechsler Intelligence Scale for Children--Fourth edition.

Marley W. Watkins

101 citations0/0 files storedPsychological Assessment

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Cognitive Abilities and Testing Psychometric Methodologies and Testing Psychological Testing and Assessment

Abstract

According to J. B. Carroll's (1993) 3-stratum theory, performance on any subtest reflects a mixture of both 2nd-order and 1st-order factors. To disentangle these influences, variance explained by the general factor should be extracted first. The 1st-order factors are then residualized, leaving them orthogonal to the general factor and each other. When these methods were applied to the WISC-IV standardization sample, the general factor accounted for the greatest amount of common (71.3%) and total (38.3%) variance. The largest contribution by a first-order factor was 6.5% of total variance. It was recommended that interpretation of the WISC-IV not discount the strong general factor.

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References

1997Handbook of educational psychology 1993Human Cognitive Abilities 2018Wechsler Intelligence Scale for Children 2013Handbook of Educational Psychology 1997Contemporary intellectual assessment: theories, tests, and issues 1957The Development of Hierarchical Factor Solutions 1996The g factor 2000Essentials of WISC-IV Assessment

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2010Structure of the Wechsler Intelligence Scale for Children—Fourth Edition among a national sample of referred students.2013Construct validity of the WISC-IV with a referred sample: Direct versus indirect hierarchical structures.2009Higher Order Factor Structure of the WISC-IV in a Clinical Neuropsychological Sample 2013Structural and incremental validity of the Wechsler Adult Intelligence Scale–Fourth Edition with a clinical sample.2017Multi-group and hierarchical confirmatory factor analysis of the Wechsler Intelligence Scale for Children—Fifth Edition: What does it measure?2008

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