Question 1

Wechsler deviation IQ is to Wechsler subtest scaled scores as __________ is to __________.
A) 15, 2
B) 15, 10
C) 100, 3
D) 100, 10

Accepted Answer

The Wechsler deviation IQ scores have a mean of 100 and a standard deviation of 15, while the subtest scaled scores have a mean of 10 and a standard deviation of 3.

Question 2

Which of the following standard scores is equivalent to a percentile rank of 50?
A) z = 0
B) T = 50
C) AGCT = 100
D) all of the above
E) none of the above

Accepted Answer

A percentile rank of 50 corresponds to the median of a distribution. A z-score of 0 indicates the mean of a standard normal distribution, which is also the median. A T-score of 50 is the mean of a T distribution, which is used in some contexts similarly to z-scores. AGCT scores are designed to have a mean of 100, and while not as commonly used in this context, the principle that the mean can represent the median in a symmetric distribution applies. Therefore, all of the options are equivalent ways of representing a percentile rank of 50 in their respective scoring systems.

Question 3

Wechsler deviation IQs range from approximately __________ to __________.
A) 20, 120
B) 40, 160
C) 55, 145
D) 25, 200

Accepted Answer

Wechsler deviation IQs typically range from 55 to 145, representing the range of scores that cover most of the population within three standard deviations from the mean.

Question 4

What do the equipercentile, item response, and linear score transformation methods have in common? They are all ways of
A) analyzing test items.
B) equating tests.
C) scoring tests.
D) standardizing tests.

Accepted Answer

These methods are all used for equating tests, which means making scores from different test forms or administrations comparable.

Question 5

How does the item analysis procedure with an internal criterion measure differ from that in using an external criterion measure?

Accepted Answer

The answer of How does the item analysis procedure with...

Question 6

Describe the similarities and differences in item-analysis procedures for traditional classroom tests and criterion-referenced tests. Include a discussion of the item discrimination index, item difficulty index, point-biserial correlation, and other appropriate measures and methods.

Accepted Answer

The answer of Describe the similarities and differences in item-analysis...

Question 7

What is the difference between an item characteristic curve and an item response curve? Include in your discussion a description of differences among the various item response models.

Accepted Answer

The answer of What is the difference between an item...

Question 8

Describe three procedures for selecting a standardization sample for a test and the advantages and disadvantages of each.

Accepted Answer

The answer of Describe three procedures for selecting a standardization...

Question 9

Describe the procedure for standardizing an achievement test, including sample selection, test administration, scoring, and types of norms computed.

Accepted Answer

The answer of Describe the procedure for standardizing an achievement...

Question 10

List and describe four kinds of norms, the types of tests with which each is used, and the merits and demerits of each kind of norm.

Accepted Answer

The answer of List and describe four kinds of norms,...

Quiz 4: Item Analysis and Standardization of Tests

Wechsler deviation IQ is to Wechsler subtest scaled scores as is to .

Which of the following standard scores is equivalent to a percentile rank of 50?

Wechsler deviation IQs range from approximately to .

What do the equipercentile, item response, and linear score transformation methods have in common? They are all ways of