Don A. Dillman
Regents' Professor
Ph.D., Iowa State, 1969
Areas of Research Interest:
Survey Methodology, Community, Rural Sociology and the Diffusion of Technologies.
Current Research Interests:
For more than a decade I have been investigating how different visual languages (words, graphics, symbols and numbers) independently influence answers to survey questions in web and paper surveys. I am also interested in how the use of visual language in such surveys may influence respondents to provide different answers than they do in aural language surveys by telephone. The results of this research are being used to guide efforts to develop guidelines for designing and conducting mixed-mode surveys, which are becoming increasingly important as a means of improving the accuracy of results. The main emphasis of my current research projects is on how to effectively utilize addressed-based sampling methods to encourage survey respondents to complete web surveys, instead of telephone or mail surveys. I am also studying the reasons that offering a “choice” of survey modes seems to lower response rates to sample surveys.
Recent Publications:
- Rookey, Bryan D., Hanway, Steve, and Dillman, Don A. 2008. Does a Probability-Based Household Panel Benefit from Assignment to Postal Response as an Alternative to internet-only? Public Opinion Quarterly. 72(5): 962-984.
- Dillman, D.A., Phelps, G., Tortora, R., Swift, K., Kohrell, J., Berck, J., & Messer, B.L. 2009. “Response rate and measurement differences in mixed-mode surveys using mail, telephone, interactive voice response, and the Internet.” Social Science Research, 38(1), 1-18.
- Christian, Leah Melani, Nicholas L. Parsons and Don A. Dillman. 2009. Measurement in Web Surveys: the Importance of Visual Layout and Design.” Sociological Methods and Research. 37(3): 393-425.
- Dillman, Don A. 2009. “Chapter 8. Some Consequences of Survey Mode Changes in Longitudinal Surveys.” In Lynn, Peter et al. (eds.), Methodology of Longitudinal Surveys.” John Wiley: London. Pp. 127-137.
- Smyth, Jolene, Don A. Dillman, Leah Melani Christian and Mallory McBride. 2009. "Open-Ended Questions in Web Surveys: Can Increasing the Size of Answer Boxes and Providing Extra Verbal Instructions Improve Response Quality?" Public Opinion Quarterly 73 (Summer): 325-337.
- Dillman, Don A., Jolene D. Smyth and Leah Melani Christian. 2009. Internet, Mail and Mixed-Mode Surveys: The Tailored Design Method, 3rd edition. John Wiley: Hoboken, NJ 499 pp.
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