A researcher is interested in studying the personality of he…
A researcher is interested in studying the personality of heroin addicted offenders. After considering various options for obtaining participants, she decides to put up flyers describing her study in the waiting rooms of methadone treatment programs and needle exchange programs. After talking with 50 people who respond to the flyers, she selects 45 whose personality traits appear to best typify the group, and she conducts in-depth interviews with them for her project. This sampling technique would be an example of _____.