Clinical validation of Canadian WAIS-III Index short forms in inpatient neuropsychiatry and forensic psychiatry.
Recent research has provided some support for the concurrent validity of two-subtest short forms for estimating Canadian WAIS-III Index scores in the standardization sample (Lange & Iverson, in press). The purpose of this study was to examine the efficacy of using various two-subtest short forms to estimate Canadian WAIS-III Index scores in a clinical population. Participants were 100 inpatients from two large psychiatric hospitals in British Columbia, Canada. Using all possible two-subtest combinations, estimated VCI, POI, and WMI scores were generated by prorating subtest scaled scores and using the Canadian normative data (Wechsler, 2001). The agreement rate between full form and short form index scores was very high for all subtest combinations (range = 90-98%). Two-subtest short forms were useful for estimating VCI, POI, and WMI scores in this population.
Lange
Rael T
RT
Department of Research, BC Mental Health and Addictions Service, Coquitlam, British Columbia, Canada. rlange@bcmhs.bc.ca
Iverson
Grant L
GL
Viljoen
Hendré
H
Brink
Johann
J
D000293:Adolescent; D000328:Adult; D000368:Aged; D002170:Canada; D005260:Female; D005555:Forensic Psychiatry; D006778:Hospitals, Psychiatric; D006801:Humans; D007297:Inpatients; D007360:Intelligence / Q000502:physiology*; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology; D001523:Mental Disorders / Q000175:diagnosis / Q000523:psychology*; D008875:Middle Aged; D010465:Perception / Q000502:physiology; D012015:Reference Standards; D012016:Reference Values; D015203:Reproducibility of Results; D014705:Verbal Behavior / Q000502:physiology; D014888:Wechsler Scales