A researcher selects two complete medical wards by lottery and collects data from every nurse working on those wards. Which sampling method is being used?
Correct answer: A. Cluster sampling
- A. Cluster sampling
- B. Stratified sampling
- C. Purposive sampling
- D. Convenience sampling
Explanation
Cluster sampling selects intact groups, such as wards, and then includes members of the selected groups. Stratified sampling would select individuals from each defined subgroup rather than selecting whole wards.
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Nursing research covers problem identification, literature review, research questions, hypotheses, variables, quantitative and qualitative approaches, study designs, sampling and data collection. It also addresses validity, reliability, research ethics, data interpretation and evidence-based practice, including how research findings can guide nursing decisions and care.
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