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Web Survey Bibliography

Title Combining Information from Multiple Modes to Evaluate and Reduce Nonresponse Bias
Year 2005
Access date 07.10.2005
Abstract Approximately 4,000 subjects were recruited for a randomized controlled trial of an online weight management intervention. Participants were sent invitations to web survey reassessments after 3, 6, and 12 months following enrollment. Increasing nonresponse to the three followup surveys created the potential for nonresponse bias in key program outcomes, with only 15% of baseline subjects completing the 12-month survey. A subsample of the 12-month nonrespondents was selected for a nonresponse study. This subsample was randomly assigned to a short telephone or mail survey to explore differences in cost-effectiveness, response rates, and measurement errors between modes. Response rates of 59% for telephone and 56% for mail were achieved. This paper reports on the use of imputation methods to combine the data from the mail and telephone followup surveys, with respondent data from baseline and the earlier followup surveys, to construct a synthetic dataset of responses to the 12-month survey.
Access/Direct link JSM (abstract)
Year of publication2005
Bibliographic typeConferences, workshops, tutorials, presentations
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Web survey bibliography - Peytchev, A. (26)