A researcher selects participants because they possess specific expertise required for a study. Which sampling method is being used?
Correct answer: A. Purposive sampling
- A. Purposive sampling
- B. Systematic sampling
- C. Stratified sampling
- D. Convenience sampling
Explanation
Purposive sampling deliberately selects units with particular characteristics or knowledge relevant to the research. Systematic and stratified sampling use structured random selection, while convenience sampling relies mainly on availability.
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