Classification Accuracy of Sequentially Administered WAIS-IV Short Forms. Appl Neuropsychol Adult 2015;22(6):409-14
Date
03/19/2015Pubmed ID
25785485DOI
10.1080/23279095.2014.953677Scopus ID
2-s2.0-84942980779 (requires institutional sign-in at Scopus site) 13 CitationsAbstract
A Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) short form (SF) may be effective for ruling out subnormal intelligence. To create a useful SF, subtest administration should follow the order prescribed in the manual and, depending upon individual performance, be terminated after completion of 2, 3, 4, or 5 subtests. One hundred and twenty-two patients completed the WAIS-IV. In two analyses, Full-Scale IQs (FSIQs) ≤69 and ≤79 were classified as impairment. Classification accuracy statistics indicated that all SFs using both cutoff scores exceeded the base rate (i.e., 14% and 34%) of subnormal intelligence, with hit rates ranging from 84% to 95%. The FSIQ cutoff of ≤69 had poor sensitivity for detecting impaired intellectual functioning with the 2-, 3-, 4-, and 5-subtest SFs; specificity, positive predictive value (PPV), and negative predictive value (NPV) were excellent for each SF. With the FSIQ cutoff of ≤79, sensitivity was strong to excellent for the 3-, 4-, and 5-subtest SFs as were specificity, PPV, and NPV.
Author List
Ryan JJ, Kreiner DS, Gontkovsky ST, Glass Umfleet LAuthor
Laura Umfleet PsyD Associate Professor in the Neurology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Aged, 80 and over
Area Under Curve
Cognition Disorders
Comprehension
Female
Humans
Intelligence
Male
Memory
Middle Aged
Wechsler Scales
Young Adult
