Which scale of measurement would you use if measuring height and weight differences among ethnic groups?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Q. 2Which scale of measurement is being used if assigning numbers based on different professional affiliation (e.g.,
counselors, social workers, psychologists, psychiatrists)?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Q. 3Which scale of measurement is being used when comparing achievement test scores of different school systems?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Q. 4An individual being tested for a gifted program scores a 132 on the Cognitive Ability Test (CogAT), which has a
mean of 100 and a standard deviation of 16. There is a .40 correlation between the CogAT score and success as
measured by GPA in the gifted program, which has a weighted mean of 4.3 with a SD of .2. Use the Standard Error
of the Estimate (SEest) to predict where this students GPA will fall 95 percent of the time.
a. 4.7 .36
b. 4.3 .4
c. 4.5 .8
d. 4.7 .28
e. None of these
Q. 5An individual being tested for a gifted program scores a 132 on the Cognitive Ability Test (CogAT), which has a
mean of 100 and a standard deviation of 16. There is a .40 correlation between the CogAT score and success as
measured by GPA in the gifted program, which has a weighted mean of 4.3 with a SD of .2. Use the Standard Error
of the Estimate (SEest) to predict where this students GPA will fall 68 percent of the time.
a. 4.7 .18
b. 4.3 .2
c. 4.5 .4
d. 4.7 .15
e. None of these
Q. 6An individual receives a T score of 73 on a test that measures empathic ability. Taking into account standard error of
measurement (SEM), what is his true score 95 percent of the time if test-retest reliability is .75?
a. 25 points
b. 10 points
c. 5 points
d. 2.5 points
e. None of these
Q. 7An individual receives a T score of 73 on a test that measures empathic ability. Taking into account standard error of
measurement (SEM), what is his true score 68 percent of the time if test-retest reliability is .75?
a. 25 points
b. 10 points
c. 5 points
d. 2.5 points
e. None of these
Q. 8An individual receives a DIQ score of 73. Taking into account standard error of measurement (SEM), what is his
true score 95 percent of the time if test-retest reliability is .96?
a. 12 points
b. 6 points
c. 3 points
d. 1.5 points
e. None of these
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