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This Concept Map, created with IHMC CmapTools, has information related to: SampleSurveys, sample survey things that may go wrong Not reaching individuals selected, biased nonresponse, sample survey things that may go wrong Convenience/Haphazard sample, sample survey things that may go wrong Using wrong sampling frame, simple random sample randomizaiton plans, biased selection, sample survey things that may go wrong Using wrong sampling frame, biased response, sample survey things that may go wrong Self-selected sample, sample survey may be biased, sample survey needs to be simple random sample, sample survey is passive observation, sample survey things that may go wrong Interactions