The Influence of Response Mode on Study Results: Offering Cigarette Smokers a Choice of Postal or Online Completion of a Survey
BackgroundIt is unclear whether offering online data collection to study participants affects compliance or produces bias. ObjectiveTo compare response rates, baseline characteristics, test-retest reliability, and outcomes between cigarette smokers who chose to complete a survey by mail versus those...
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Format: | Book |
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JMIR Publications,
2010-10-01T00:00:00Z.
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A1234.567 |
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