1. and ?The Effect of Longitudinal Burden on Survey Participation.? Paper presented at the annual conference of the American Association for Public Opinion Research, St. Louis, Mo., May 1998.
2. and ?Undergraduate Perceptions of Survey Participation: Improving Response Rates and Validity.? Paper presented at the annual meeting of the Association of Institutional Research, Minneapolis, Minn., May 1998.
3. Mail and Internet Surveys: The Tailored Design Method. New York: Wiley, 2000.