title: Comparability of the GMI and DMI for the WMS-III.
abstract: This study compared the new Delayed Memory (DMI) with the General Memory (GMI) index of the WMS-III using 134 inpatients with substance abuse disorders. The WMS-III Immediate Memory Index (IMI) and the GMI are not parallel because the latter includes Auditory Recognition Delayed. A solution to this dilemma is the DMI, in that it directly parallels the original IMI. The GMI and DMI scores were highly correlated, r = .98, and mean values differed by<1 point (90.77 and 90.66, respectively). Difference score comparisons (i.e., IMI-GMI with IMI-DMI and FSIQ-GMI with FSIQ-DMI) yielded similar results (ts<1). Case-by-case analyses demonstrated concordance rates of 99% for the IMI-GMI and IMI-DMI comparisons and 94% for the FSIQ-GMI and FSIQ-DMI contrasts.
authors.affiliation: Department of Psychology, University of Central Missouri, Warrensburg, Missouri 64093, USA. ryan@ucmo.edu
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Ryan
authors.forename: Laura A
authors.initials: LA
authors.lastname: Glass
authors.forename: Jared M
authors.initials: JM
authors.lastname: Bartels
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D008297:Male; D008568:Memory / Q000502:physiology*; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D046709:Pattern Recognition, Physiological / Q000502:physiology; D019966:Substance-Related Disorders / Q000503:physiopathology / Q000523:psychology; D014888:Wechsler Scales / Q000706:statistics & numerical data*