TY - JOUR A1 - Groves, Robert M. A1 - Peytcheva, Emilia T1 - The impact of nonresponse rates on nonresponse bias: A meta-analysis Y1 - 2008 DO - 10.1093/poq/nfn011 JF - The Public Opinion Quarterly VL - 72 IS - 2 SP - 167 EP - -189 ER -