Two-Year Follow-up of a Sequential Mixed-Mode Experiment in the U.S. National Monitoring the Future Study

Patrick, Megan E; Couper, Mick P; Schulenberg, John E; Johnston, Lloyd D; Bachman, Jerald G; O’Malley, Patrick M; Jang, Bohyun J; Laetz, Virginia. (2019). Two-Year Follow-up of a Sequential Mixed-Mode Experiment in the U.S. National Monitoring the Future Study. Survey Practice. 12(1), 8358.