title: A Validated Seven-Subtest Short Form for the WAIS-IV.
abstract: This study presents a short form of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV; Wechsler, 2008 ) using the subtests (Block Design, Similarities, Digit Span, Arithmetic, Information, Coding, and Picture Completion) suggested by Ward ( 1990 ). These seven subtests were used to predict the full WAIS-IV Full-Scale IQ, as well as the Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed Index scores. Two different data sets were used: the first consisted of 70 subjects and the second consisted of 32 subjects. The first data set was used to create a linear regression and the second data set was used to validate the results and compare to the prorated score method from the WAIS-IV manual. The prorated estimated scores correlated significantly with their counterparts and proved to be a better method of estimating the Full-Scale IQ and most of the index scores, but the regression equation was better at predicting the Processing Speed Index. The current study is consistent with the Ward ( 1990 ) and Pilgrim, Meyers, Bayless, & Whetstone (1999) studies and represents a reliable and valid way of assessing intellectual functioning in an abbreviated format.
authors.affiliation: a Private Practice , Mililani , Hawaii.
authors.forename: John E
authors.initials: JE
authors.lastname: Meyers
authors.affiliation: b Private Practice , Brunswick , Maine.
authors.forename: Margaret M
authors.initials: MM
authors.lastname: Zellinger
authors.affiliation: c Private Practice, St. George , Utah.
authors.forename: Tim
authors.initials: T
authors.lastname: Kockler
authors.affiliation: d Private Practice, Philadelphia and Jenkintown, Pennsylvania.
authors.forename: Mark
authors.initials: M
authors.lastname: Wagner
authors.affiliation: e Psychology, Brigham Young University Hawaii , Laie , Hawaii.
authors.forename: Ronald Mellado
authors.initials: RM
authors.lastname: Miller
keywords: Wechsler Adult Intelligence Scale; intelligence tests; neuropsychological tests; psychological tests; psychometrics