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Data Collection: Enhancing Response Rates & Limiting Errors

Data Collection: Enhancing Response Rates & Limiting Errors. Chapter 10. Types of Error. Sampling error Noncoverage error Nonresponse error Response error Office error. Sampling Error. What is sampling error? How can it be reduced?. Noncoverage Error.

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Data Collection: Enhancing Response Rates & Limiting Errors

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  1. Data Collection: Enhancing Response Rates & Limiting Errors Chapter 10

  2. Types of Error • Sampling error • Noncoverage error • Nonresponse error • Response error • Office error

  3. Sampling Error • What is sampling error? • How can it be reduced?

  4. Noncoverage Error • “Failure to include some elements of the defined target population in the sampling frame” • How can it be reduced?

  5. Nonresponse Error • What is it? • Two main sources • Refusals • Methods • Types of people • Reasons • Not-at-homes • Callbacks

  6. Response Error • Response is given, but is inaccurate • To reduce, ask questions: • Does respondent understand question? • Does respondent know the answer? • Is respondent willing to provide true answer? • Will wording of question cause bias?

  7. Office Errors • Editing • Coding • Analyzing • Monitor TOTAL error

  8. Response Rates • Basic calculating equation: • Web-based and mail equation: • Telephone surveys equation:

  9. Improving Response Rates • Make it interesting • Survey length • Guarantee confidentiality or Anonymity • Interviewer training • Personalization • Response incentives • Follow-up surveys

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