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SW 450 Final exam prep Exam Questions and
Answers Practice Questions with Solutions Newest
2026-2027 Complete Questions And Correct Detailed
Answers| Already Graded A+
the main difference between experimental and quasi-
experimental designs is that experimental designs require:
a. random assignment to groups
b. pre-test and post-test measures
c. operationally defined variables.
d. all of the above. - ANSWER-a. random assignment to groups.
You are a researcher studying work-place improvements to
increase worker morale. You do a pre-test measure of morale for
50 workers at an agency using the Worker Morale Inventory
(WMI), implement your intervention of morale building
activities, and then do a post-test measure of morale with them
using the WMI. What design are you implementing?
AB design
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the class experimental design
the one-group post-test only design
the one-group pre-test/post-test design - ANSWER-d. the one-
group pre-test/post-test design
You are the researcher conducting the study described in
question 7. If the agency had to lay off several staff members
after your first WMI measure, what threat to internal validity
might affect your study results?
a. history
b. mortality
c. both history and mortality
d. none of the above - ANSWER-both history and mortality
You are the researcher conducting the study described in
question #7. If you used the WMI for the pre-test, but decided to
use the Workplace Burnout Scale (WBS) for the post-test, what
threat to internal validity might affect your study results?
a. instrumentation
b. testing
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c. selection
d. history - ANSWER-a. instrumentation
You are the researcher conducting the study described in
question 7. If you are including ALL of the agency employees in
your study, which threat to internal validity is LEAST LIKELY
to affect your study results.
a. selection
b. testing
c. history
d. maturation. - ANSWER-a. selection
Reliability and validity of a research instrument refer to:
a. the instrument's psychometrics
b. whether the instrument consistently measures what you want
it to measure
c. both a and b
d. neither a nor b - ANSWER-both the instrument's
psychometrics and whether the instrument consistently measures
what you want it to measure
SW 450 Final exam prep Exam Questions and
Answers Practice Questions with Solutions Newest
2026-2027 Complete Questions And Correct Detailed
Answers| Already Graded A+
the main difference between experimental and quasi-
experimental designs is that experimental designs require:
a. random assignment to groups
b. pre-test and post-test measures
c. operationally defined variables.
d. all of the above. - ANSWER-a. random assignment to groups.
You are a researcher studying work-place improvements to
increase worker morale. You do a pre-test measure of morale for
50 workers at an agency using the Worker Morale Inventory
(WMI), implement your intervention of morale building
activities, and then do a post-test measure of morale with them
using the WMI. What design are you implementing?
AB design
,2|Page
the class experimental design
the one-group post-test only design
the one-group pre-test/post-test design - ANSWER-d. the one-
group pre-test/post-test design
You are the researcher conducting the study described in
question 7. If the agency had to lay off several staff members
after your first WMI measure, what threat to internal validity
might affect your study results?
a. history
b. mortality
c. both history and mortality
d. none of the above - ANSWER-both history and mortality
You are the researcher conducting the study described in
question #7. If you used the WMI for the pre-test, but decided to
use the Workplace Burnout Scale (WBS) for the post-test, what
threat to internal validity might affect your study results?
a. instrumentation
b. testing
, 3|Page
c. selection
d. history - ANSWER-a. instrumentation
You are the researcher conducting the study described in
question 7. If you are including ALL of the agency employees in
your study, which threat to internal validity is LEAST LIKELY
to affect your study results.
a. selection
b. testing
c. history
d. maturation. - ANSWER-a. selection
Reliability and validity of a research instrument refer to:
a. the instrument's psychometrics
b. whether the instrument consistently measures what you want
it to measure
c. both a and b
d. neither a nor b - ANSWER-both the instrument's
psychometrics and whether the instrument consistently measures
what you want it to measure
