ERIC Number: EJ925185
Record Type: Journal
Publication Date: 2011-Jun
Pages: 14
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1073-1911
EISSN: N/A
Confirmatory Factor Analysis of the WAIS-IV/WMS-IV
Holdnack, James A.; Zhou, Xiaobin; Larrabee, Glenn J.; Millis, Scott R.; Salthouse, Timothy A.
Assessment, v18 n2 p178-191 Jun 2011
The Wechsler Adult Intelligence Scale-fourth edition (WAIS-IV) and the Wechsler Memory Scale-fourth edition (WMS-IV) were co-developed to be used individually or as a combined battery of tests. The independent factor structure of each of the tests has been identified; however, the combined factor structure has yet to be determined. Confirmatory factor analysis was applied to the WAIS-IV/WMS-IV Adult battery (i.e., age 16-69 years) co-norming sample (n = 900) to test 13 measurement models. The results indicated that two models fit the data equally well. One model is a seven-factor solution without a hierarchical general ability factor: Verbal Comprehension, Perceptual Reasoning, Processing Speed, Auditory Working Memory, Visual Working Memory, Auditory Memory, and Visual Memory. The second model is a five-factor model composed of Verbal Comprehension, Perceptual Reasoning, Processing Speed, Working Memory, and Memory with a hierarchical general ability factor. Interpretative implications for each model are discussed. (Contains 2 figures and 5 tables.)
Descriptors: Factor Structure, Measures (Individuals), Short Term Memory, Factor Analysis, Goodness of Fit, Models, Cognitive Processes, Memory, Verbal Communication, Language Processing, Perception
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Wechsler Adult Intelligence Scale; Wechsler Memory Scale
Grant or Contract Numbers: N/A