Presented at Conference of Statistics and Operations Research of North Portugal and the Galicia region held at the University of Minho, Guimaraes, Portugal.

For random digit dial surveys, discusses using logistic regression models to deal with challenges created by answering machines, call waiting, and other screening and call-blocking services.

As part of an evaluation of the Ticket to Work and Self-Sufficiency program (TTW), Mathematica Policy Research conducted Round 4 of the National Beneficiary Survey (NBS) in 2010. The survey, sponsored by the Social Security Administration’s (SSA) Office of Retirement and Disability...