| Zusammenfassung: | <p>The Youth, Education, and Society (YES) study was conducted as part of the Bridging the Gap initiative, a national research project funded by the Robert Wood Johnson Foundation dedicated to improving the understanding of how policies and environmental policies influence diet, physical activity and obesity among youth, as well as youth tobacco use. YES surveyed secondary schools participating in the <a href="http://monitoringthefuture.org">Monitoring the Future</a> study and a larger supplementary sample of secondary schools. This data collection covers only the latter sample. The YES Supplement consists of annual surveys of school administrators in representative samples of middle schools and high schools, beginning with the 2006-2007 school year and ending with the 2013-2014 school year. Topics covered by the YES Supplement questionnaire include school characteristics, school nutrition and physical education policies, school lunch programs, and school vending machines, stores and snack bars.</p>
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