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The hierarchical factor structure of the WAIS‐R for learning‐disabled adults
Author(s) -
Blaha John,
Mandes Evans,
Swisher Charles W.
Publication year - 1987
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198703)43:2<280::aid-jclp2270430221>3.0.co;2-x
Subject(s) - psychology , wechsler adult intelligence scale , learning disability , wechsler intelligence scale for children , hierarchy , developmental psychology , comprehension , factor (programming language) , learning disabled , cognitive psychology , wechsler preschool and primary scale of intelligence , perception , cognition , linguistics , psychiatry , neuroscience , computer science , programming language , philosophy , economics , market economy
A hierarchical factor solution was obtained on intercorrelations among the WAIS‐R subtests for a sample of 232 learning‐disabled adults. An ability arrangement in agreement with Vernon's structural paradigm was obtained. The ability hierarchy included a relatively weak general intelligence ( g ) factor defined by positive loadings from all WAIS‐R subtests. The primary level of the hierarchy included spatial‐perceptual‐mechanical ( k:m ), verbal comprehension (VC) and freedom‐from‐distractibility (FD) factors. Thus, the factor structure found with learning‐disabled adults on the WAIS‐R is similar to the factor structure found with learning‐disabled children on the WISC‐R. This suggests that it may be possible to generalize from the many hierarchical studies that have been done on the WISC and WISC‐R and apply the composite hierarchical factor structure that Blaha and Wallbrown (1984) derived from these studies to the WAIS‐R.