TY - JOUR T1 - The Effect of Survey Mode and Sampling on Inferences about Political Attitudes and Behavior: Comparing the 2000 and 2004 ANES to Internet Surveys with Nonprobability Samples AU - Malhotra, Neil AU - Krosnick, Jon A. PY - 2007 DO - 10.1093/pan/mpm003 SP - 286 EP - 323 JO - Political Analysis VL - 15 IS - 3 SN - 1047-1987 ER -