SOCY 210 Lecture Notes - Lecture 6: Nonprobability Sampling, Simple Random Sample, Quota Sampling

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Easier to focus resources on a smaller group: better than limiting resources on the entire population. People don"t interest us: interested on attitudes and infer from the greater population. Generalizing from a sample to larger population. Sampling frame: which population was being sampled. Automobile owners: list of sampling units. Quota sampling: based on knowledge of the characteristics of the population being sampled. Certain proportions are women, different proportions of incomes, ages: selects people to match a certain set of characteristics, quote is based on the variables relevant to the study. Non probability sampling: reliance on available subjects, purposive or judgmental sampling, snow ball sampling, quota sampling, qualitative. Elements of a population do not stand equal chance of selection: limit generalizations. Doesn"t allow for representativeness of a sample. You select the units to be observed. Personal judgment on who is most useful and representative. Appropriate when members of a certain population are difficult to locate.

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