TESTS AND MEASUREMENTS

Six-year old Billy and his 20-year-old brother Sam both obtain valid IQ scores of 110. Their mother comments that Billy is really smarter since his score is particularly impressive "for a 6-year-old." Which of the following would likely be correct?

a.

Billy is not currently smarter, but he will be when he and Sam are both adults.

b.

IQ is age adjusted, so Billy and Sam are at the same percentile, relative to their respective age groups.

c.

Billy and Sam would be about equally matched on games requiring intelligence, such as chess.

d.

Their mother is correct.

QUESTION 24

You have developed a test of musical ability, and would like to report the scores as Stanines, with a mean of 5 and a standard deviation of 2. Raw scores on your test have a mean of 30 and a standard deviation of 5. What is the Stanine score for someone who obtains a raw score of 25?

a. 1

b. 3

c. 7

d.9

Question 25

According to Item Response Theory, "theta" for a particular individual on a particular item is related to:

a.

The probability that she will pass the item

b.

Her ability to understand the item wording

c.

The degree to which the item distinguishes her from other test takers

d.

Her likelihood of correctly guessing the answer

QUESTION 26

The three-parameter IRT model indicates which three item characteristics?

a.

Discrimination, readability, difficulty

b.

Difficulty, unique contribution to the toal score, discrimination

c.

Difficulty, chance of guessing correctly, discrimination

d.

Reliability, unique contribution to the total score, validity

QUESTION 27

You are creating a new scale using classical test analysis. Which of these four items would you eliminate?Note: Please use the table found at the top of this page to answer this question.

a.

Item A

b.

Item B

c.

Item C

d.

Item D

QUESTION 28

Which of the following provides clear evidence of unlawful adverse impact?

a.

Men obtain lower scores on a test of management ability and so are less likely to be chosen for certain management positions.

b.

White applicants tend to score higher on a job selection test and are hired over lower-scoring nonwhites, even though whites are already overrepresented in the job category.

c.

Persons who are under age 40 score higher on a test of popular culture and are hired over older applicants. High scores on this test do not predict better performance on this job.

d.

Applicants for a position as a proofreader are given a test of reading ability; an applicant with dyslexia fails the test and is not hired.

QUESTION 29

Which of the following activities is a clear ethical violation?

a.

Displaying a few MMPI items on your website for educational purposes

b.

Releasing a psychological testing report directly to a client

c.

Administering an IQ test and reporting the results to a private client who is curious about his IQ

d.

Recommending specific jobs in a vocational assessment

QUESTION 30

DIF is a technique that could be used to determine:

a.

Whether an item on a translation of a test functions the same as the original item

b.

The percentile rank of a particular client on a test

c.

Whether an applicant will be successful on a job, based on test results

d.

What a test score would be, adjusting for guessing