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NUR 641 Exam 2 with 100% Correct Answers Latest 2024/2025 Version
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NUR 641 Exam 2 with 100% Correct Answers Latest 2024/2025 Version
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NUR 641 Exam 2 with 100% CorrectAnswers Latest 2024/2025 Version
What is the main goal of a two-group experimental study?
A. To determine if one intervention is more effective than the other
B. To determine if either intervention is biased
C. To determine if both interventions can be safely implemented in real settings
D. To determine if the sample is representative of the population - ✔✔A. To determine if
one intervention is more effective than the other
What is true of an experimental design?
A. It is the best design for evaluating the effectiveness of clinical interventions and treatments
B. It works well for small sample sizes
C. It is always the best design and should be used whenever possible
D. It provides control over extraneous variables - ✔✔A. It is the best design for evaluating
the effectiveness of clinical interventions and treatments
Training the staff or research assistants who deliver the interventions assures which one of the
following goals of an experimental study?
,A. A high level of patient participation
B. Data collectors who know which intervention the patient received
C. Accurate and unbiased measurement of the study outcomes
D. Consistent delivery of the interventions - ✔✔D. Consistent delivery of the interventions
In a two-group intervention study, what is the meaning of a t-test with p-value of 0.03 result?
A. The probability of the outcome occurring is low
B. There is a high probability that in the population the two groups are truly different on the outcome
C. The two groups had similar outcomes
D. There is low probability that in the population the two groups are truly different - ✔✔B. There is
a high probability that in the population the two groups are truly different on the outcome
In the exemplar study about pain relief during intravenous cannula insertion in children, why did the
researchers obtain a pre-procedure, self-report anxiety score?
A. To reduce the child's anxiety level
B. To give the child practice in self-reporting anxiety after the procedure
C. So they could compare it to the score after the procedure
, D. To be sure both treatment groups were similar before the procedure - ✔✔D. To be sure both
treatment groups were similar before the procedure
What is a frequent limitation of conducting a cohort study?
A. Lack of subject compensation
B. Low generalizability
C. Need for mixed methods
D. Attrition of participants - ✔✔D. Attrition of participants
How are cohort studies different from experimental studies?
A. Cohort studies involve indirect comparison rather than direct comparison
B. Cohort studies do not employ random assignment to groups
C. Cohort studies use smaller samples
D. Cohort studies measure long-term outcomes - ✔✔B. Cohort studies do not employ
random assignment to groups
Which statement best describes case-control studies?
A. They are studies in which control is exerted over the treatment individuals get
B. They are in-depth studies of a single case
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