A Sequential Mixed Mode Experiment in the U.S. National Monitoring the Future Study

Patrick, Megan E; Schulenberg, John E; O’Malley, Patrick M; Johnston, Lloyd D; Miech, Richard Allen; Laetz, Virginia B. (2018). A Sequential Mixed Mode Experiment in the U.S. National Monitoring the Future Study. Journal of Survey Statistics and Methodology. 6(1), 72-97.