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This document discusses survey research methods and the types of errors that can occur. It describes four common survey methods: person-administered surveys, telephone-administered surveys, self-administered surveys, and online surveys. For each method, it provides examples like telephone interviews, mail surveys, and internet surveys. It also outlines factors for selecting the appropriate survey method, like situational characteristics, task characteristics, and respondent characteristics. Finally, it discusses two types of errors that can happen in surveys: sampling errors and non-sampling errors, which include errors from respondents and researchers.














