TY - JOUR A1 - Singer, E. A1 - Van Hoewyk, J. A1 - Gebler, N. A1 - Raghunathan, T. A1 - McGonagle, K. T1 - The effect of incentives on response rates in interviewer-mediated surveys Y1 - 1999 JF - Journal of Official Statistics VL - 15 IS - 2 ER -