Duwayne conducts a study of elderly people who attend exercise classes.He assembles a sample by asking elderly people whether they attend exercise classes,and selecting those who do.This approach is called ________ sampling.

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In purposive sampling, the researcher selects participants based on specific criteria, in this case, attendance at exercise classes. This approach is commonly used in qualitative research where the focus is on understanding a specific group or phenomenon. Random sampling involves selecting participants at random from the population, while qualitative sampling refers to selecting participants based on their ability to provide rich and informative data. Saturation sampling involves continuing data collection until no new information or themes emerge.

Duwayne Conducts a Study of Elderly People Who Attend Exercise