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Which of the following quantities are used to assess the relative importance of variables
in discriminating between groups?
a. the mean differences of the groups on each variable
b. the standardized discriminant coefficients
c. the discriminant loadings
d. b and c only
e. all of the above
Long questionnaires can usually be handled best
a. by telephone interview.
b. by mail questionnaire.
c. by personal interview.
d. by a focused group interview.
e. by a depth interview.
A one'‘tailed test to test the null hypothesis Ho : m < mC where C is some specific
constant, could be carried out by comparing the calculated z value with the area under
the curve (in the graph below) designated by .
a. C
b. B
c. A
d. AB
e. None of the above
Time series experiments
a. are the only form of quasi-experimental designs that exist.
b. allow the researcher repeated access to the same test units.
c. are fundamentally weak because of the failure to control maturation.
d. a and b.
e. a, b, and c.
A researcher is attempting to determine the average annual expenditures per household
on albums. Suppose $300 was considered the upper limit and $0 the lower limit. There
are no past studies on which to base an estimate of s. What is your best estimate of the
standard deviation?
a. $0
b. $50
c. $150
d. $300
e. no way to determine
KR 20 and coefficient alpha are
a. essentially different measures of internal consistency.
b. computational formulas for a test'‘retest reliability.
c. essentially very similar except that the former is used with multichotomous items and
the latter with dichotomous items.
d. concerned with the stability of a measure.
e. none of the above.
A manufacturer is interested in selecting one of three companies to deliver (by truck) its
product to its distributors and wholesalers in a certain area. Each of the companies has
different operating procedures and uses different routes. Assuming that certain
minimum standards for delivery time are achieved, the manufacturer wants to select the
company with the lowest unit shipping cost.
In addition, the manufacturer believes that the type of packaging used for the product
may have an impact on shipping cost and is considering two types of packaging. It is
unknown whether or not any of the three companies under consideration is better
equipped to handle either type of packaging.
After using each of the companies for five deliveries of the product with each of the
types of packaging (thus, each company made a total of 10 deliveries, with all
deliveries under similar circumstances), the shipping costs per unit were calculated and
are shown below:
Company
Package C1 C2 C3 Total
Mean
________________________________________________________________
$1.75 $1.25 $1.80
1.65 1.15 1.70
P1 1.90 1.35 1.95 24.30
1.62
2.00 1.15 1.75
1.70 1.15 2.05
________________________________________________________________
2.00 1.35 1.95
1.90 1.55 2.05
P2 2.15 1.35 2.30 27.80
1.85
2.25 1.35 2.00
1.95 1.45 2.20
________________________________________________________________
Total 19.25 13.10 19.75 52.10 1.74
Mean 1.93 1.31 1.98
Cell P1C1 P1C2 P1C3 P2C1 P2C2
P2C3
Total 9.00 6.05 9.25 10.25 7.05
10.50
Mean 1.80 1.21 1.85 2.05 1.41 2.10
The sum of squares for the interaction term in the above problem can be calculated as
P C _ _
a. nΣ Σ (xij '‘ x...)2= 5[(1.80'‘1.74)2+(1.21'‘1.74)2+...+(2.10'‘1.74)2].
i=1 j=1
b. SSPC '‘ SSP '‘ SSC.
c. SST '‘ SSTR.
d. SSTR '‘ SSP '‘ SSC.
e. none of the above.
Which of the following is FALSE?
a. Program strategy specifies the types of studies that are to be conducted and for what
purposes.
b. Project strategy deals with how a study should be conducted.
c. Program strategy is determined by a company's philosophy of how marketing
research fits into its marketing plan.
d. Project strategy involves the design of the individual studies that a firm conducts to
gather information.
e. A program strategy and a project strategy are identical.
A researcher developing a questionnaire becomes aware of an interesting additional
relationship which could be investigated at very little cost and effort. He knows that this
is not vital to his present research purpose. He should
a. investigate it to a limited extent.
b. forget it.
c. evaluate the cost.
d. investigate it carefully.
e. investigate it, as this is likely to reduce sampling error.
Hours of Study and Grades Received on Test for 100
Undergraduate StudentsRESULTS FOR
MEN: Hours of Study
Grade Received 5 or less 6 or more Total A
6 14 20 B 18
12 30 Total 24 26
50RESULTS FOR WOMEN: Hours of
Study Grade Received 5 or less 6 or more
Total A 8 16
24 B 16 10
26 Total 24 26
50TOTALS: Hours of
Study Grade Received 5 or less 6 or more
Total A 14 30
44 B 34 22
56 Total 48 52 100 The "totals"
chart might also be called the between the variables "grade received" and "hours of
study."
a. one'‘way tabulation
b. conditional association
c. zero'‘order association
d. a and c only
e. none of the above
For a scale to have ordinal properties, which of the following must be established?
a. if "a" is greater than "b," then "b" is not greater than "a"
b. if "a" is greater than "b" and "b" is greater than "c," then "a" is greater than "c"
c. if "a" is equal to "b" and "b" is equal to "c," then "a" is equal to "c"
d. all of the above
e. none of the above
A causal research design is typically concerned with
a. the frequency with which something occurs.
b. the discovery of ideas and insights.
c. how two variables vary together.
d. the determination of cause'‘and'‘effect relationships.
e. establishing priorities when studying competing explanations of phenomenon.
The difference between the observed values of a variable and the long'‘run average of
the observed values in repetitions of the measurement is (the)
a. effect of the stimulus.
b. nonsampling error.
c. sampling error.
d. main testing effect.
e. interactive testing effect.
Annual Income per Person in $
$50,000 represents the
a. median.
b. sixtieth percentile.
c. third quartile.
d. seventieth percentile.
e. none of the above.
Which of the following statements is correct?
a. A low incidence means that a high percentage of the population of interest qualifies
for inclusion in the study.
b. A low incidence means that a low percentage of the population of interest is expected
to respond to the study.
c. A low incidence means that a low percentage of the population of interest qualifies
for inclusion in the study.
d. A low incidence means that a low percentage of the target population will participate
in the study.
e. None of the above are true statements.
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