WAGNER, James; OLSON, Kristen; EDGAR, Minako. The Utility of GPS data in Assessing Interviewer Travel Behavior and Errors in Level-of-Effort Paradata. Survey Research Methods, [S. l.], v. 11, n. 3, p. 218–233, 2017. DOI: 10.18148/srm/2017.v11i3.6794. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/6794. Acesso em: 25 apr. 2024.