What is the reliability and validity of the WAIS-IV?
The reliability and validity of the WAIS-IV is outlined in the Technical and Interpretive Manual [1]). The main reliability figure based on the standardisation sample for Full Scale IQ was 0.98, indicating good internal consistency.
Why is the Wechsler test important?
Although there are many different reasons why the WAIS might be used, it’s sometimes used by neuropsychologists and rehabilitation psychologists in people who have been injured. They are able to utilize the test to see what areas of the brain have been affected as well as determine cognitive function.
What does the Wechsler Memory Scale IV measure?
The current version is the fourth edition (WMS-IV) which was published in 2009 and which was designed to be used with the WAIS-IV. A person’s performance is reported as five Index Scores: Auditory Memory, Visual Memory, Visual Working Memory, Immediate Memory, and Delayed Memory.
How long does the WMS IV take to administer?
The WMS-IV could be considered a complex assessment where each individual subtest can take up to 30 minutes to complete with total administration times ranging from 130 to 190 minutes. Although time consuming, its results can generate unique insights into client ability (Chittooran, 2012).
What are the limitations to WAIS-IV?
Disadvantages • Very expensive. Cannot be administered by non-psychologists. Administration of the full WAIS-IV is time-consuming. Some subtests are lengthy to administer (Comprehension, Block Design) • There are no parallel versions of the test.
Is the Wechsler IQ test accurate?
Is the Test Really Reliable? Research has shown that the Wechsler test is one of the most well-designed tests to measure intelligence. It provides a wide profile of indexes and scales and really allows for the diagnosis of certain mental complications, as well as an accurate depiction of a person’s intelligence.
What is 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. This instruments aids in examining the relationship between intellectual functional and memory.
What is an advantage of how the WAIS-IV is administered?
A strength of the WAIS-IV is inclusion in the test manual of numerous validity studies with clinical samples. An advantage of the WAIS-IV over previous Wechsler adult scales is easier administration because of fewer concrete materials to manipulate.
What is the fourth edition of the Wechsler Memory scale?
The Wechsler Memory Scale—Fourth Edition (WMS-IV), first introduced by Wechsler (1945), is a standardized measure of visual, auditory, and working memory in adults ages 16 to 69 years old and older adults ages 65 to 90 years old, and is designed to assess memory deficits in a variety of patient populations, such as those with neurological and
Why was the WMS-IV Memory Scale developed?
WMS-IV Flexible Approach includes new materials and data that enable more flexible assessment. The WMS-IV was developed to provide the most trustworthy, advanced measure of memory and results for addressing the changing clinical landscape. Expanded clinical utility. Increased caseload. Reduce subtest administration time.
What is the average score on the Wechsler scales?
Test revision also insures that there has been no upward drift in test scores over time, and that “average” test performance across the population for tests such as the Wechsler scales remains at 100.1
Which is the most widely used memory scale?
Wechsler Memory Scale ® Fourth Edition (WMS ® -IV) is the most widely used scale of adult memory. In response to changing demographics, increased caseload, and new research and clinical needs, this latest edition of the memory test includes four new subtests and modifications to three existing subtests.