Which is the population of interest for a study that includes this sample?
"Registered nurses who completed orientation within 6 months of graduation from nursing school and were current employees at the study hospital were invited to participate in the study."
All RNs in the city where the hospital was located who graduated within the past 6 months.
RN employees at the study hospital who were hired, completed orientation, and later agreed to participate in the study.
RN employees who were hired 0 to 6 months after graduating and were still employed at the hospital when the study began.
All RNs who were hired by the hospital within 6 months of graduation from nursing school.
The Correct Answer is D
A. This option includes a broader geographic area than the study sample, which is limited to one hospital.
B. This describes the actual study sample (those who agreed to participate), not the broader population of interest.
C. This is close but includes only those still employed at the study's start, narrowing the population too much.
D. This best reflects the population of interest—all RNs hired by the hospital within 6 months of graduation—regardless of whether they participated, aligning with the group the researchers aim to generalize findings to.
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Related Questions
Correct Answer is ["A","E"]
Explanation
A. First graders typically fall within the 5 to 10-year age range and can represent healthy children in the sample.
B. Children with leukemia may have compromised immune systems, which could affect wound healing and confound results.
C. Participation in sports alone does not define eligibility; the key inclusion is having sutures.
D. Type 1 diabetes can impair healing and affect infection risk, which could bias results.
E. Children who had stitches are the appropriate population since the study compares antibacterial versus standard sutures and focuses on wound infection incidence.
Correct Answer is B
Explanation
A. Correlational studies examine the relationship between variables but do not determine cause and effect, making them less suitable for comparing behaviors based on prior contraceptive use.
B. Ex-post-facto studies investigate cause-and-effect relationships by comparing groups based on pre-existing conditions or behaviors, such as contraceptive use, making this design appropriate for assessing differences in breast self-exam reliability.
C. Longitudinal studies follow subjects over time to observe changes, which might be useful but are more time-consuming and may not be necessary for this research question.
D. Exploratory studies are preliminary and aimed at gaining insights or generating hypotheses, not testing specific behavioral differences as in this question.
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