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Chapter One Data Collection

Chapter One Data Collection. 1.4 Sources of Error in Sampling.

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Chapter One Data Collection

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  1. Chapter OneData Collection 1.4 Sources of Error in Sampling

  2. Non-sampling errors are errors that result from the survey process. They are due to the non-response of individuals selected to be in the survey, inaccurate response, poorly worded questions, bias in the selection of individuals to be in the survey, etc.

  3. Sampling error is the error that results in using sampling to estimate information regarding a population. This type of error occurs because a sample does not give complete information about the population.

  4. Sources of Non-sampling Error

  5. Sources of Non-sampling Error • Incomplete Frame

  6. Sources of Non-sampling Error • Incomplete Frame • Non-response

  7. Sources of Non-sampling Error • Incomplete Frame • Non-response • Poor Interviewer

  8. Sources of Non-sampling Error • Incomplete Frame • Non-response • Poor Interviewer • Incorrect Data Entry

  9. Sources of Non-sampling Error • Incomplete Frame • Non-response • Poor Interviewer • Incorrect Data Entry • Poorly worded question • Open versus Closed Question • Ordering of Questions

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