ERIC Number: EJ907518
Record Type: Journal
Publication Date: 2010-Dec
Pages: 6
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1040-3590
EISSN: N/A
Structure of the Wechsler Intelligence Scale for Children-Fourth Edition among a National Sample of Referred Students
Watkins, Marley W.
Psychological Assessment, v22 n4 p782-787 Dec 2010
The structure of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV; D. Wechsler, 2003a) was analyzed via confirmatory factor analysis among a national sample of 355 students referred for psychoeducational evaluation by 93 school psychologists from 35 states. The structure of the WISC-IV core battery was best represented by four first-order factors as per D. Wechsler (2003b), plus a general intelligence factor in a direct hierarchical model. The general factor was the predominate source of variation among WISC-IV subtests, accounting for 48% of the total variance and 75% of the common variance. The largest 1st-order factor, Processing Speed, only accounted for 6.1% total and 9.5% common variance. Given these explanatory contributions, recommendations favoring interpretation of the 1st-order factor scores over the general intelligence score appear to be misguided. (Contains 3 tables and 2 figures.)
Descriptors: Intelligence, School Psychologists, Factor Structure, Measures (Individuals), Factor Analysis, Psychoeducational Methods, Scores, Construct Validity, Models, Children, Adolescents, Elementary Secondary Education, Kindergarten, Grade 11
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education; Elementary Secondary Education; Grade 11; Kindergarten
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children
Grant or Contract Numbers: N/A