Monitoring the Future
The Monitoring the Future (MTF) study, also known as the National High School Senior Survey,
Survey design
The survey began in 1975 and only focused on that year's senior class.
Nationally representative samples of 8th-, 10th-, and 12th-grade students (The 2010 MTF survey encompassed about 46,500 students from almost 400 schools nationwide[2]) receive a questionnaire investigating substance use patterns, attitudes and beliefs about drugs, perceived availability of drugs, and norms among peer and role model groups. Currently, approximately 50,000 8th, 10th and 12th-grade students complete the survey annually.[3]
The survey also evaluates a variety of topics beyond drug use. Questionnaire questions also explore subjects' occupational and educational plans and experiences, attitudes about
Regular marijuana and cigarette use by 12th graders
Chart below is from a NIDA article. Text at the top was added later. Chart is for regular marijuana and cigarette use by 12th graders in the USA in the past 30 days. For cigarettes actual daily use is measured. For marijuana it is for use on 20 or more occasions in the past 30 days.[4]

See also
References
- ^ a b Purpose and Design of Monitoring the Future
- ^ a b c Johnston, L. D., O’Malley, P. M., Bachman, J. G., & Schulenberg, J. E. (2011). Monitoring the Future national results on adolescent drug use: Overview of key findings, 2010. Ann Arbor: Institute for Social Research, The University of Michigan.
- ^ "Welcome to the MTF Website". Monitoringthefuture.org. 2015-12-16. Retrieved 2016-01-03.
- ^ a b Miech, R. A., Schulenberg, J. E., Johnston, L. D., Bachman, J. G., O'Malley, P. M., & Patrick, M. E. (December 17, 2018). "National Adolescent Drug Trends in 2018." Monitoring the Future: Ann Arbor, MI. Stats source is linked from the charts index. From footnotes: "Daily use is defined as use on 20 or more occasions in the past 30 days except for cigarettes and smokeless tobacco, for which actual daily use is measured." This particular footnote is for more than one chart. Smokeless tobacco is not measured in the marijuana and cigarettes chart. That NIDA chart is found in this NIDA article.