Delayed recall on the Wechsler Memory Scale-revised: the factor structure revisited.
Although delayed recall tasks are prominent features of the popular Wechsler Memory Scale-Revised (WMS-R), exploratory factor analyses consistently have failed to identify an associated delayed recall factor. The present study tested the hypothesis (Elwood, 1991b) that a delayed recall factor could be found by substituting percent retained (saving) scores for the existing WMS-R delayed recall subtest scores. Principal component analyses of age-corrected WMS-R immediate and save scores in a mixed clinical sample failed to find the hypothesized save factor. Both the scree and MAP tests retained one general memory factor, which accounted for 42.2% of the total variance. Independent statistical programs produced essentially equivalent results. Clinical implications of these findings are discussed.
Elwood
R W
RW
Psychology Service, Veterans Administration Medical Center, Tomah, WI 54660.
D000328:Adult; D000368:Aged; D000425:Alcohol Amnestic Disorder / Q000175:diagnosis / Q000523:psychology; D001925:Brain Damage, Chronic / Q000175:diagnosis* / Q000523:psychology; D003704:Dementia / Q000175:diagnosis* / Q000523:psychology; D015161:Dementia, Multi-Infarct / Q000175:diagnosis / Q000523:psychology; D005163:Factor Analysis, Statistical; D006801:Humans; D008297:Male; D011939:Mental Recall; D008875:Middle Aged; D019964:Mood Disorders / Q000175:diagnosis / Q000523:psychology; D019965:Neurocognitive Disorders / Q000175:diagnosis* / Q000523:psychology; D011594:Psychometrics; D011604:Psychoses, Alcoholic / Q000175:diagnosis / Q000523:psychology; D012153:Retention, Psychology; D012559:Schizophrenia / Q000175:diagnosis; D012565:Schizophrenic Psychology; D012984:Software; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000523:psychology; D014888:Wechsler Scales / Q000706:statistics & numerical data*