Practice Questions

A nurse researcher is reviewing a research article and sees a “meta-analysis” in the title. What does a meta-analysis involve?

A. A single large experimental study.
B. A qualitative study synthesizing experiences.
C. A statistical technique that combines the results of multiple scientific studies.
D. A case study of a unique patient.
nmdcat.online BS Nursing
Jun 6, 2026

What is the “mean” in statistics?

A. The middle value in a dataset.
B. The most frequently occurring value.
C. The sum of all values divided by the number of values.
D. The range of the dataset.
nmdcat.online BS Nursing
Jun 6, 2026

A study uses “convenience sampling.” What is the main implication for the study’s findings?

A. They are highly generalizable.
B. They are difficult to analyze statistically.
C. They may not be representative of the target population.
D. They are always clinically significant.
nmdcat.online BS Nursing
Jun 6, 2026

What is “debriefing” in the context of research ethics?

A. The process of obtaining informed consent.
B. Explaining the true purpose of the study to participants after data collection, especially if deception was used.
C. Analyzing the collected data.
D. Publishing the research findings.
nmdcat.online BS Nursing
Jun 6, 2026

Which type of research design is most appropriate for investigating cause-and-effect relationships?

A. Descriptive
B. Correlational
C. Experimental
D. Qualitative
nmdcat.online BS Nursing
Jun 6, 2026

What is the primary purpose of a “pilot study” in research?

A. To test the feasibility of a larger study and identify potential problems.
B. To collect preliminary data for publication.
C. To recruit all participants for the main study.
D. To generalize findings to a wider population.
nmdcat.online BS Nursing
Jun 6, 2026

What is the “null hypothesis” in a research study?

A. A statement predicting a significant relationship between variables.
B. A statement that there is no significant difference or relationship between variables.
C. The researcher's personal belief about the outcome.
D. The conclusion drawn from the study.
nmdcat.online BS Nursing
Jun 6, 2026

A clinical nurse specialist is participating in a journal club. The discussion focuses on a research study that used an “experimental design.” What is a defining characteristic of an experimental design?

A. The researcher does not manipulate any variables.
B. The researcher observes participants in their natural environment.
C. The researcher manipulates an independent variable and randomly assigns participants to groups.
D. The researcher conducts in-depth interviews.
nmdcat.online BS Nursing
Jun 6, 2026
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