Chapter 7 utility

Question 1

• refer to the usefulness of something or
  some process.
• it refers to how useful a test is.
• it refers to the practical value of using a
  test to aid in decision making.

Answer 1

Utility

Question 2

Factors that affect a test’s utility

Answer 2

a. Psychometric Soundness: means that a test
is reliable and valid.
b. Costs: refers to disadvantages, losses, or
expenses in both economic and noneconomic
terms.
c. Benefits: refers to profits, gains, or
advantages.

Question 3

provide an estimate of
the extent to which inclusion of a particular test
in the selection system will improve selection.

Answer 3

Taylor-Russell Tables

Question 4

is a numerical value
that reflects the relationship between the number of people to be hired and the
number of people available to be hired.

Answer 4

Selection Ratio

Question 4

entails obtaining the
difference between the means of the selected and
unselected groups to derive an index of what the
test (or some other tool of assessment) is adding
to already established procedures.

Answer 4

Naylor-Shine Tables:

Question 5

refers to an estimate of the
benefit (monetary or otherwise) of using
a particular test or selection method

Answer 5

Utility Gain:

Question 5

used to
calculate the dollar amount of a utility gain
resulting from the use of a particular selection
instrument under specified conditions.

Answer 5

Brogden-Cronbach-Glester Formula:

Question 6

refers to an
estimated increase in work output.

Answer 6

Productivity Gain

Question 7

The percentage of a
population that truly has a certain trait

Answer 7

Base Rate

Question 8

is about making choices
based on information and probabilities.

Answer 8

Decision Theory

Question 9

The percentage of times a test
correctly identifies someone as having
the trait.

Answer 9

Hit rate

Question 10

The percentage of times the
test fails to identify someone who has
the trait .

Answer 10

Miss rate

Question 11

When the test
incorrectly identifies someone as having
the trait (saying they’re breathing when
they really aren’t).

Answer 11

False positive

Question 12

designed to determine if
alive-and-well subjects are indeed breathing.

Answer 12

Vapor Test:

Question 12

When the test
incorrectly identifies someone as not
having the trait (saying they’re not
breathing when they actually are).

Answer 12

False Negative: