#JSM2018 Joe Sakshaug up first in the session on mixed mode surveys 
#JSM2018 Sakshaug talking about sequential mixed mode surveys and nonresponse and measurement error bias. Isolating these errors in hard. Had CATI and mail as starting modes, and then switched modes, to look at ordering of modes and NR/ME errors
#JSM2018 Sakshaug looking at 2006 study on driving experiences of young adults; random assignment to mail or CATI starting mode in wave3 of longitudinal study
#JSM2018 Sakshaug Response rates different before mode switch, but not after mode switch. Have admin DMV records, and prior wave survey data. Compare weighted vs unweighted estimates as NR Bias measure. For ME, assumed mail is benchmark mode and that “more is better” for truth
#JSM2018 Sakshaug Different conclusions from different ways of examining error, but mail seems to be better
#JSM2018 Sakshaug Mail to CATI seems to be the winner for total bias, with CATI reducing NR bias in the follow up to mail, but mail follow up not as much
