WAIS-IV (Wechsler Adult Intelligence Scale®, Fourth Edition): Overview. This pre-recorded minute session allows you to learn at your leisure. All you need is access to the Internet and the sound enabled on your computer. Please keep in mind that the session may take a few minutes to load.
The third edition of the Wechsler Adult Intelligence Scale (WAIS-III) improved upon its predecessor, the Wechsler Adult Intelligence Scale-Revised (WAIS-R; Wechsler, ) in a number of ways. A significant enhancement provided by the WAIS-III was the upward extension of age-based normative data from the previous upper limit of 75 years of age.
Description: The Wechsler Adult Intelligence Scale-Third Edition updates the WAIS-R, represents contemporary updated norms, and extends the age range. Some items have been modified, and there is greater discrimination for individuals in the mild to moderate mental retardation range as . Nineteen psychologists and 19 graduate students scored two Wechsler Adult Intelligence Scale-Third Edition patient protocols. Mean IQs and indexes were similar across groups, but the ranges for Verbal IQ (VIQ), Performance IQ (PIQ), and Full Scale IQ (FSIQ) on .
Wechsler Adult Intelligence Scale (WAIS) The WAIS was initially introduced in as an alternative to the Binet Scale to measure intelligence in adults. By the 's, the WAIS had surpassed even the newer version of the Binet Scale, the Stanford-Binet Intelligence Scales, as the preeminent tool for testing adult intelligence levels.