Erica Ryu is a Ph.D. candidate in sociology at the University of Michigan. She participated in the 2001 Detroit Area Study as a student. Her dissertation uses survey methodology to examine social networks in mega-churches.
Direct all correspondence to Erica Ryu, Survey Research Center, University of Michigan, 3345 Institute of Social Research, 426 Thompson Street, Ann Arbor, MI 48106–1248, USA, Email: email@example.com
Mick P. Couper is a research associate professor at the University of Michigan’s Institute for Social Research and at the Joint Program in Survey Methodology. He directed the 2001 Detroit Area Study. His research interests cover a range of methodological issues related to surveys.
Robert W. Marans is a research professor at the University of Michigan’s Institute for Social Research and an emeritus professor of architecture and urban planning in the Taubman College of Architecture and Urban Planning. He serves as Washternaw County’s representative on the Huron-Clinton Metropolitan (parks) Authority. Marans was the lead researcher on the 2001 Detroit Area Study to identify and measure various social, economic, environmental, and community indicators on the quality of life on the Detroit region.
Erica Ryu, Mick P. Couper, Robert W. Marans; Survey Incentives: Cash vs. In-Kind; Face-to-Face vs. Mail; Response Rate vs. Nonresponse Error. Int J Public Opin Res 2006; 18 (1): 89-106. doi: 10.1093/ijpor/edh089
Experiments on incentives have a long history in survey research, particularly in mail surveys but increasingly in other modes too. Most of this work has focused on variations in incentive type, timing, and amount on response rates. There has been relatively little research examining the effect of different incentives on nonresponse error. Furthermore, most of the studies on incentives have been within a single mode. No studies, to our knowledge, have examined the effect of incentives in a study using more than one mode. This paper adds to the methodological literature on incentives in several ways. Although we compare a cash incentive vs. an in-kind incentive, which has been done several times, we examine these effects in both...