Stevenson, J., J. Dykema, L. Klein, K. Cyffka, and S. Goldrick-Rab. What Are the Odds? Lotteries Versus Cash Incentives. Response Rates, Cost and Data Quality for a Web Survey of Low-Income Former and Current College Students. Paper presented at the annual meeting of the American Association for Public Opinion Research, May, Orlando, FL, 2012.