Wechsler Test Wechsler Psychometric Properties 4

Question 1

A General Ability Index (GAI) on the WAIS-IV or WISC-V is most useful because it minimizes the influence of which two domains?

Accepted Answer

Working Memory and Processing Speed

Answer

The GAI is derived primarily from reasoning and comprehension subtests, reducing the weight of Working Memory and Processing Speed.

Question 2

If a Wechsler subtest has high inter-rater reliability, this means:

Accepted Answer

Different scorers produce similar scores for the same responses

Answer

Inter-rater reliability reflects agreement among different examiners scoring the same performance.

Question 3

An examinee's Working Memory Index is significantly lower than their Verbal Comprehension Index. This is an example of analyzing what?

Accepted Answer

Index discrepancy (profile analysis)

Answer

Comparing differences between index scores is part of discrepancy or profile analysis.

Question 4

The phenomenon where extreme scores tend to move closer to the average upon retesting is known as:

Accepted Answer

Regression to the mean

Answer

Regression to the mean describes extreme scores drifting toward the average on subsequent testing.

Question 5

The gradual rise in average IQ scores over generations, which prompts periodic renorming of Wechsler tests, is called:

Accepted Answer

The Flynn effect

Answer

The Flynn effect refers to the long-term increase in population IQ scores over time.

Wechsler Test Practice Test