This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Schoenberg, M. R. Articles by Saklofske, D. H. Search for Related Content PubMed PubMed Citation Articles by Schoenberg, M. R. Articles by Saklofske, D. H. Social Bookmarking                         What's this?

Estimating Premorbid General Cognitive Functioning for Children and Adolescents Using the American Wechsler Intelligence Scale for Children—Fourth Edition: Demographic and Current Performance Approaches

Department of Neurology, University Hospitals Case Medical Center, Cleveland and Case Western Reserve University School of Medicine, Cleveland, Ohio, Michael.Schoenberg{at}UHhospitals.org

Rael T. Lange, PhD

Department of Research, British Columbia Mental Health and Addiction Services, Riverview Hospital, Coquitlam

Tracey A. Brickell, DPsych

Back in Motion Rehabilitation, Vancouver, British Columbia

Donald H. Saklofske, PhD

Division of Applied Psychology, University of Calgary, Calgary, Alberta, Canada

Neuropsychologic evaluation requires current test performance be contrasted against a comparison standard to determine if change has occurred. An estimate of premorbid intelligence quotient (IQ) is often used as a comparison standard. The Wechsler Intelligence Scale for Children—Fourth Edition (WISC-IV) is a commonly used intelligence test. However, there is no method to estimate premorbid IQ for the WISC-IV, limiting the test's utility for neuropsychologic assessment. This study develops algorithms to estimate premorbid Full Scale IQ scores. Participants were the American WISC-IV standardization sample (N = 2172). The sample was randomly divided into 2 groups (development and validation). The development group was used to generate 12 algorithms. These algorithms were accurate predictors of WISC-IV Full Scale IQ scores in healthy children and adolescents. These algorithms hold promise as a method to predict premorbid IQ for patients with known or suspected neurologic dysfunction; however, clinical validation is required.

Key Words: intelligence quotient • IQ • WISC-IV

Journal of Child Neurology, Vol. 22, No. 4, 379-388 (2007)
DOI: 10.1177/0883073807301925


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?