Newton, L., A. James, V.M. Lesser. Comparing Response Rates Across Modes in Studies of Specialized Populations. Presented at the International Field Directors and Technology Conference, Anaheim, CA. May, 2014.

Lesser, V.M., L. Newton, D. Yang, J.Sifneos, K. Nason. Comparing Response Rates, Demographics and Costs in Mail and Mixed-Mode Surveys. Presented at the American Association for Public Opinion Research, Boston, MA, 2013.

Lesser, V.M., L. Newton, D. Yang. Does Internet Use Improve Surveys?: Studies of Costs, Response Rates and Coverage. To be presented at the 5th European Survey Research Association Conference, Ljubljana, Slovenia, 2013.

Yang, D.K., Gitelman, A.I., Lesser, V.M., and D.S. Birkes.  Propensity Score Adjustments for Covariates in Observational Studies.  Presented at the American Statistical Association Meetings, San Diego, CA, August, 2012.

Lesser, V.M., D. Yang, L. Newton.  Trends in Mail Survey Response Rates: An Analysis of Monthly Response Rates.  Presented at the American Association for Public Opinion Research, Orlando, Florida, May, 2012.

Lesser, V.M., L. Newton, D. Yang.  Evaluating Methodologies to Increase Internet Responses in Mixed-Mode Surveys.  Presented at the International Statistics Institute Meeting, Dublin, Ireland, August, 2011.

Lesser, V.M., A. Olstad, D. Yang, L. Newton.  Comparing Item Nonresponse and Responses Across Modes in General Population Surveys.  Presented at the American Association for Public Opinion Research, Phoenix, Arizona, May, 2011.

Lorenz, F., L. Hildreth, V.M. Lesser, and U. Genshel.  General-specific questions in survey research: a confirmatory factor analysis approach.  Presented at the Annual Meeting of the Rural Sociology Society, August, 2010.

Yang, D.K., Gitelman, A.I., Lesser, V.M., and D.S. Birkes.  Improving the Propensity Score Equal Frequency Adjustment Estimator Using an Alternative Weight.   Presented at the American Statistical Association Meetings, Vancouver, British Columbia, August, 2010.

Lesser, V.M., L. Newton, and D. Yang.  Does Providing a Choice of Survey Modes Influence Response?  Presented at the American Association for Public Opinion Research, Chicago, Illinois, May, 2010.

Lesser, V.M., L. Newton, and D. Yang.   Alternatives to Phone Surveys: a study comparing Random Digit Dialing with Mail and Web using the Postal Delivery Sequence File.  Presented at the American Association for Public Opinion Research, Ft. Lauderdale, Florida, May 2009.

Lesser, V.M., L. Newton, and D. Yang.   Evaluating Frames and Modes of Contact in a Study of Individuals with Disabilities.  Presented at the American Statistical Association Meetings, Denver, Colorado, August 2008.

Lesser, V.M., K. Hunter-Zaworski, L. Newton and D. Yang.  Using Multiple Survey Modes in a Study of Individuals with Disabilities.  Presented at the American Association for Public Opinion Research, New Orleans, Louisiana, May 2008.

Lesser, V.M. and B. Munoz.  Multiple Imputation for Handling Item Nonresponse in Environmental Data.  2008 Western Division American Fisheries Society Meeting, Portland, Oregon, May 2008.

Lesser, V.M. and K. Hunter-Zaworski.  Results of An Air Travel Survey On The Needs And Experiences For Individuals With Disabilities.  Presented at the International Conference on Aging and Disability, St. Petersburg, Florida, February 2008.

Munoz, B, V. M. Lesser, J. Dorney and R. Savage.  Survey Methodology for Assessing Geographically Isolated Wetlands Map Accuracy.  Presented at Washington Statistics Society, Washington DC, September 2007.

Lesser, V.M. and L. Newton.  Comparison of Delivery Methods in a Survey Distributed by Internet, Mail, and Telephone.  Presented at the International Statistics Institute Meetings, Lisbon, Portugal, August 2007.

Lesser, V.M.  The Influence of Color and Space Constraints on Responses to Open-ended Questions in Paper Questionnaires.  Presented at the American Statistical Association Meetings, Salt Lake City, Utah, July 2007.

Lesser, V.M. and L. Newton.  Survey of Air Travel Needs and Experiences for People with Disabilities.   Presented at the International Conference on Mobility and Transport for Elderly and Disabled Persons (TRANSED), June 2007.

Lesser, V.M.  Advantages and Disadvantages of Probability and Non-Probability Based Surveys of the Elderly and Disabled.  Presented at the International Conference on Mobility and Transport for Elderly and Disabled Persons (TRANSED), June 2007.  

Lesser, V.M.  Evaluation of Airline Transportation for People with a Disability.  Presented at the State of the Science Conference for the National Center for Accessible Transportation, Portland, Oregon, October 2006.

Munoz-Hernandez, B., V.M. Lesser, and L.A. Harrod.  A Weighting Class Adjustment Estimator in a Continuous Domain.  Presented at the American Statistical Association Meetings, Seattle, WA, August 2006.

Harrod, L.A. and V.M. Lesser.  Use of propensity scores to adjust for nonresponse.  Presented at the American Statistical Association Meetings, Seattle, WA, August 2006.

Lesser, V.M. and L. Newton.  Comparing the Use of Color in Mail Questionnaires.  Annual Conference for the American Association for Public Opinion Research, Montreal, Quebec, May 2006.

Donatelle, R.J., L. D. Hudson, V. Lesser, S.R.Dobie, A. Goodall, and G. Legaz.  Using incentives and social support to motivate smoking cessation in pregnancy: Lessons learned and future directions.   Presented at the American Public Health Association Meetings, New Orleans, LA, November 2005.

Harrod, L.A., V.M. Lesser, and A. Qu.  An application of estimating equation and quadratic inference functions in complex surveys.  Presented at the American Statistical Association Meetings, Minneapolis, MN, August 2005.

Lesser, V.M. and L. Newton.  Evaluating nonsampling errors in a study conducted by web and mail.  Presented at the Annual Conference for the American Association for Public Opinion Research, Miami Beach, Florida, May 2005.

Lesser, V.M. and Munoz-Hernandez, B.  A Weighting Class Adjustment Estimator for the Total under a Stratified Sampling Design in a Continuous Domain.  Presented at the International Statistics Institute Meetings, Sydney, Australia, April 2005.

Munoz-Hernandez, B. and V.M. Lesser.  Adjustment procedures to account for non-ignorable missing data in environmental surveys.   Presented at the International Environmetrics Society Meetings, Portland, Maine, June 2004.

Smith-Cayama, R., B. Muñoz-Hernández, and V.M. Lesser.  Models for Nonresponse and Missing Data.  Presented at the American Statistical Association Meetings, San Francisco, CA, August 2003.

Muñoz-Hernández, B., R. Smith-Cayama, and V.M. Lesser.  Model-based Approach for Handling the Non-ignorable Missing Data Mechanism in Environmental Surveys.  Presented at the American Statistical Association Meetings, San Francisco, CA, August 2003.

Amer, S., V. Lesser, and R. Burton.  Neural Network Imputation, A New Fashion or A Good Tool: Linear Neural Network Imputation.  Presented at the American Statistical Association Meetings, San Francisco, CA, August 2003.

Smith-Cayama, R., Muñoz-Hernández, B. and V. Lesser.  Evaluation of Some Methods for Non-response in Environmental Data.  American Statistical Association Meetings, New York City, New York, August 2002.

Muñoz-Hernández, B., Smith-Cayama, R., and V. Lesser.  Application of the Design-based EOF to Combined Data Sets.  American Statistical Association Meetings, New York City, New York, August 2002.

Lesser, V.M. and L. Newton.  Comparison of Response Rates and Quality of Response in a Survey Conducted by Mail, Email and Web.  Annual Conference for the American Association for Public Opinion Research, St. Petersburg, Florida, May 2002.

Lesser, V.M. and  J. Carlson.  Quantifying the Influences of Incentives on Mail Survey Response Rates and Their Effects on Nonresponse Error.  American Statistical Association Meetings, Atlanta, Georgia, August, 2001 and the Annual Meeting of the Rural Sociology Society, Albuquerque, New Mexico,  August 2001.

Lorenz, F.O., J. Saltiel, and V.M. Lesser.  Effects of the Order in which General vs. Specific Questions are Asked in Surveys. American Statistical Association Meetings, Atlanta, Georgia,  August, 2001 and the Annual Meeting of the Rural Sociology Society, Albuquerque, New Mexico,  August 2001.

Dillman, D.A., R.G. Mason, R. Robertson, V.M. Lesser and F. Willits.  Personalization of Mail Surveys on General Public and Other Populations.   Annual Conferences of the American Statistical Association Meetings, Atlanta, Georgia, August, 2001 and the Annual Meeting of the Rural Sociology Society, Albuquerque, New Mexico,  August 2001.

Lesser, V.M. and L. Newton.  Mail, Email and Web Surveys: A Cost and Response Rate Comparison in a Study of Undergraduate Research Activity.  Annual Conference for the American Association for Public Opinion Research, Montreal, Quebec, May 2001.