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How long does the WAIS take to administer?
According to the WAIS-III manual (Wechsler, 1997b), administration of the 11 subtests, which comprise the summary scores averages 75 min, with a range of 60 to 90 min. The 11 subtests that comprise the index scores average 60 min, ranging from 45 to 75 min, to administer.
Is the WAIS-IV timed?
These criticisms of the 1937 Binet test helped produce the Wechsler–Bellevue scale, released in 1939. However, the present-day WAIS-IV has contradicted many of these criticisms, by incorporating a single overall score, using multiple timed tasks, focusing on intellective items and other ways.
How is the WAIS-IV given?
The Wechsler Adult Intelligence Scale–Fourth Edition (WAIS–IV; Wechsler, 2008) can be administered in a telepractice context by using digital tools from Q-global®, Pearson’s secure online-testing and scoring platform.
Is the WAIS test timed?
The WMS-III manual (Wechsler, 1997c) estimates that actual administration time for the primary subtests is 30 to 35 min, which takes into account the 30-min delay between Logical Memory I and II. The administration of all of the supplemental subtests was estimated to take 15 to 20 min of actual testing time.
Who can administer the WAIS-IV?
Psychologists are often asked to administer the WAIS-IV (Wechsler Adult Intelligence Scale – Fourth Edition). The WAIS-IV is the “gold standard” in cognitive assessment and claims to measure intellectual performance.
Is WAIS-IV reliable?
Internal reliability: (Wechsler, 2008) Cronbach’s alpha/split-half reliability coefficients for subtests in the WAIS-IV range from . 87 to . 98 (not calculated for SS, Coding and Cancellation).
Is the WAIS-IV reliable?
Reliability and Validity The Wechsler Adult Intelligence is a well-established scale and it has fairly high consistency. Over a two to twelve week time period, the test-retest reliabilities ranged from 0.70 (7 subscales) to 0.90 (2 subscales).
How long does it take to administer the WAIS-III?
Together, administration of the complete WMS-III should take 45 to 55 min. The present study sought to provide information regarding the administration time for the primary subtests, summary scores, and index scores for the WAIS-III and WMS-III in a clinical sample.
How is the WAIS IV reliable and valid?
Reliable Digit Span is calculated by summing the longest string of digits repeated without error over two trials under both forward and backward conditions. What is the WAIS IV used for? Used as a general test the intelligence, the Wechsler Adult Intelligence Scale –Fourth Edition (WAIS-IV) was developed to assess cognitive ability for adults.
What are the subtests of the WAIS-IV FSIQ?
The WAIS–IV FSIQ is composed of all 10 subtests that comprise the four index scores, including the Working Memory and Processing Speed subtests. The WAIS–III subtests used to derive the FSIQ included only one subtest from the Processing Speed scale and one additional subtest each from the Verbal Comprehension and Perceptual Organization scales.
How old do you have to be to use the WAIS test?
The WAIS ®-IV is intended for use with adults ages 16 to 90. The assessment measures cognitive ability using a core battery of 10 unique subtests that focus on four specific domains of intelligence: verbal comprehension, perceptual reasoning, working memory, and processing speed.