Who chooses a QR code over a URL to access a web screener in a national probability survey of older adults, and the impact on data quality
Andrew L. Hupp 
University of Michigan, USA
Heather M. Schroeder University of Michigan, USA
Brady T. West University of Michigan, USA
Eva Leissou - University of Michigan, USA
David R. Weir University of Michigan, USA
There has been limited research on the impact of the inclusion of a quick response code (QR) code option on recruitment to a web screening survey, and on data quality when a screening instrument can be either self-administered or interviewer-administered. As part of a screening effort to recruit a new birth cohort to a long-standing panel study, an area probability sample of households was randomly assigned to one of two data collection protocols: web-first with in-person follow-up, or in-person first, with nonresponding cases followed up via the web. Both treatment arm protocols included a mailed letter, either as an invitation …
