Sometimes randomly selecting people to participate in a study is just not feasible.

Question

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There are situations where it may be difficult or impossible to randomly select participants for a study. Examples include studies involving rare populations or highly specific criteria, studies taking place in sensitive or dangerous environments, or studies requiring extensive screening or informed consent processes. In these cases, researchers may need to use alternative methods to recruit participants, such as convenience sampling or purposive sampling.

Sometimes Randomly Selecting People to Participate in a Study Is