Volunteer or Self-Selected Sample., People choose, in some way, to be in the sample., Snowball sample, A person may then suggests another 2 or 3 people (perhaps more) who in turn, suggest another 2 or 3 etc, Opportunity sampling:, The researcher simply uses people who are convenient or acceptable, Quota Sampling, Your sample will be based on proportions in the target population, Random sample, The sample is selected by randomly choosing names from the frame until the sample is complete, Systematic sample, You select the names for your sample systematically rather than on a simple random basis, Stratified Random sampling, The target population is broken down in to different groups that need to be represented.

Sampling match up

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