Purposive sampling means: a. selecting sample members to study because they possess attributes important to understanding a research topic. b. selecting sample participants who can generate spontaneous discussion on a research topic. c. selecting sample members so that groups can be compared. d. selecting sample members based on earlier interviews. e. selecting particular types of participants because they can minimize cross talk during the discussions of a research topic.

a. selecting sample members to study because they possess attributes important to understanding the research topic.

Explanation:

A purposive sampling is a sampling technique in which the researchers rely on their own decision or judgement in choosing the members of the population of the study. This is a non-probability sampling as no random selection is made.

This sampling method needs the researcher must be possessing prior knowledge about the purpose of the study so that the researcher can choose the desired and eligible members for the study.

answer; repetitive thoughts; ritualistic behaviors;

answer; criterion validity