Wechsler Test Wechsler Psychometric Properties 2

Question 1

On the WAIS-IV and WISC-V, the Full Scale IQ has a mean of 100 and a standard deviation of what value?

Accepted Answer

15

Answer

10

Answer

16

Answer

20

Question 2

Individual Wechsler subtest scaled scores are reported on a scale with a mean of 10 and a standard deviation of how much?

Accepted Answer

3

Answer

5

Answer

10

Answer

15

Question 3

Which type of reliability is most relevant when asking whether a Wechsler subtest yields stable results when the same person is retested weeks later?

Accepted Answer

Test-retest reliability

Answer

Internal consistency

Answer

Inter-rater reliability

Answer

Parallel-forms reliability

Question 4

A correlation between WAIS-IV scores and an independent measure of academic achievement provides evidence of what kind of validity?

Accepted Answer

Criterion-related validity

Answer

Face validity

Answer

Content validity

Answer

Internal consistency

Question 5

What does the Standard Error of Measurement (SEM) primarily help clinicians construct around an obtained Wechsler IQ score?

Accepted Answer

A confidence interval

Answer

A percentile rank

Answer

A scaled score

Answer

A discrepancy score

Question 6

An IQ of 130 on a Wechsler scale (mean 100, SD 15) falls how many standard deviations above the mean?

Accepted Answer

2 SD

Answer

1 SD

Answer

1.5 SD

Answer

3 SD

Question 7

What is the approximate percentage of the population that scores within the average range (IQ 85-115) on Wechsler scales?

Accepted Answer

About 68%

Answer

About 34%

Answer

About 50%

Answer

About 95%