NURS 641 EXAM 2| REAL EXAM QUESTIONS WITH 100%
RATED CORRECT ANSWERS (ACCURATELY PASSED) 2025
LATEST UPDATED GET A+
In a study of the effectiveness of two pain management methods, what is the meaning of the
conclusion that one method produced a clinically significant lower pain level than the other
method?
A. The study was well-conducted.
B. The difference in outcome achieved by the more effective method is large enough to make an
important difference in patient comfort.
C. Pain management is an important intervention.
D. The difference in outcomes achieved by the two groups proves the underlying physiology
being tested. - (ANSWER)B. The difference in outcome achieved by the more effective method
is large enough to make an important difference in patient comfort.
Which of the following results from a sample size that is too small?
A. Lack of control over extraneous variables
B. A weak intervention
C. Limits to random sampling
,D. Low power to detect a difference in the outcomes of two groups - (ANSWER)D. Low power
to detect a difference in the outcomes of two groups
What is the relationship between clinical significance and statistical significance?
A. Statistical significance determines clinical significance
B. Both can be significant, both can be nonsignificant, or one can be significant and the other
nonsignificant
C. If one is significant, the other is significant
D. Clinical significance determines the reliability of statistical significance - (ANSWER)B.
Both can be significant, both can be nonsignificant, or one can be significant and the other
nonsignificant
Inconsistent delivery of either or both of the treatments has what effect on the results of the
study?
A. It could result in erroneous study conclusions
B. None, if the researcher corrects the inconsistency before the end of the study
C. It could affect the inter-rater reliability of the outcome
D. It could cause the study participants to be dissatisfied with their involvement in the study -
(ANSWER)A. It could result in erroneous study conclusions
, Why is a study categorized as quasi-experimental (as opposed to being called experimental
study)?
A. Because the researcher does not have a PhD
B. Because the intervention and/or setting was not tightly controlled
C. Becuase the intervention was only partially tested
D. Because it was not possible to recruit participants from the population of interest -
(ANSWER)B. Because the intervention and/or setting was not tightly controlled
What type of quantitative research design looks for cause and effect between an intervention and
an outcome variable?
A. Case-control design
B. Correlational design
C. Experimental design
D. Retrospective design - (ANSWER)C. Experimental design
What concern exists to a greater extent in quasi-experimental studies than experimental studies?
A. The Hawthorne effect
B. Too small a sample size
RATED CORRECT ANSWERS (ACCURATELY PASSED) 2025
LATEST UPDATED GET A+
In a study of the effectiveness of two pain management methods, what is the meaning of the
conclusion that one method produced a clinically significant lower pain level than the other
method?
A. The study was well-conducted.
B. The difference in outcome achieved by the more effective method is large enough to make an
important difference in patient comfort.
C. Pain management is an important intervention.
D. The difference in outcomes achieved by the two groups proves the underlying physiology
being tested. - (ANSWER)B. The difference in outcome achieved by the more effective method
is large enough to make an important difference in patient comfort.
Which of the following results from a sample size that is too small?
A. Lack of control over extraneous variables
B. A weak intervention
C. Limits to random sampling
,D. Low power to detect a difference in the outcomes of two groups - (ANSWER)D. Low power
to detect a difference in the outcomes of two groups
What is the relationship between clinical significance and statistical significance?
A. Statistical significance determines clinical significance
B. Both can be significant, both can be nonsignificant, or one can be significant and the other
nonsignificant
C. If one is significant, the other is significant
D. Clinical significance determines the reliability of statistical significance - (ANSWER)B.
Both can be significant, both can be nonsignificant, or one can be significant and the other
nonsignificant
Inconsistent delivery of either or both of the treatments has what effect on the results of the
study?
A. It could result in erroneous study conclusions
B. None, if the researcher corrects the inconsistency before the end of the study
C. It could affect the inter-rater reliability of the outcome
D. It could cause the study participants to be dissatisfied with their involvement in the study -
(ANSWER)A. It could result in erroneous study conclusions
, Why is a study categorized as quasi-experimental (as opposed to being called experimental
study)?
A. Because the researcher does not have a PhD
B. Because the intervention and/or setting was not tightly controlled
C. Becuase the intervention was only partially tested
D. Because it was not possible to recruit participants from the population of interest -
(ANSWER)B. Because the intervention and/or setting was not tightly controlled
What type of quantitative research design looks for cause and effect between an intervention and
an outcome variable?
A. Case-control design
B. Correlational design
C. Experimental design
D. Retrospective design - (ANSWER)C. Experimental design
What concern exists to a greater extent in quasi-experimental studies than experimental studies?
A. The Hawthorne effect
B. Too small a sample size
