title: Parsimonious prediction of Wechsler Memory Scale--III memory indices.
abstract: Equations for prorating the Wechsler Memory Scale--III (WMS-III) Index scores were derived and validated on a sample of 252 mixed clinical cases. Regression equations were performed using age-scaled scores as predictors and the sum of age-scaled scores for Immediate Memory (IM) and General Memory (GM) as the criteria. Including Logical Memory and Verbal Paired Associates with either Faces or Family Pictures resulted in estimated scores that accounted for 95% to 97% of the variance for IM and GM. Over 80% of these cases had estimated sum of scaled scores that fell within 3 points of actual sum of scaled scores, within 1 standard error of measurement. When only Logical Memory and Verbal Paired Associates were included, estimations accounted for only 87% of the variance, and only 60% of the estimated scores fell within 3 points of actual sum of scaled scores. The regression equations are presented, as are the confidence intervals derived from a bootstrapping procedure that created 15,000 different samples.
authors.affiliation: Psychology Section (11-MH-PS), John D. Dingell Department of Veterans Affairs Medical Center, 4646 John R. Street, Detroit, Michigan 48201-1916, USA. bradley.axelrod@med.va.gov
authors.forename: B N
authors.initials: BN
authors.lastname: Axelrod
authors.forename: J L
authors.initials: JL
authors.lastname: Woodard
mesh_terms: D000328:Adult; D000368:Aged; D000647:Amnesia / Q000175:diagnosis* / Q000523:psychology; D001925:Brain Damage, Chronic / Q000175:diagnosis* / Q000523:psychology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term; D001523:Mental Disorders / Q000175:diagnosis / Q000523:psychology; D011939:Mental Recall; D008875:Middle Aged; D010153:Paired-Associate Learning; D011594:Psychometrics; D015203:Reproducibility of Results; D014888:Wechsler Scales / Q000706:statistics & numerical data*