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 Date: 2007-06-04 06:13:00Evaluation methods Survey methodology Methodology Research methods Data collection Paid survey Response rate Response bias Survey data collection Statistics Sampling Science |
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| First Page | Document Content | |
|---|---|---|
Date: 2007-06-04 06:13:00Evaluation methods Survey methodology Methodology Research methods Data collection Paid survey Response rate Response bias Survey data collection Statistics Sampling Science |
|
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