Chapter 4 184 Author (year) Description of policy Implementation date Implementation level Enforcement Observational period Selection of participants Wiium (2009) Support for hypothetical policies - - - October 4 to 23, 2004 List of randomly selected 16–20-year-olds from the Norwegian Population Register Wipfli (2020) Hypothetical support - - - 10 months in 2017Online survey through Qualtrics Survey Software sent to on campus list servers of all 50 partners of the Association of Pacific Rim Universities (APRU) Global Health Program (GHP). Wong (2020) Support for hypothetical policies - - - January to August 2018 Campus community members, Recruitment via print directories (undergraduate students), online directories (graduate students, faculty), listservs (postdoctoral, fellows, staff). Random digit table to select and email survey. Wray (2020) Tobacco free campus in Missouri, USA. Prohibited use of tobacco at all campuses indoor and outdoor, parking facilities, university housing and hotels/establishments operated by the university July 1st 2016 Community (University) Not reported 17-06-16 till 3006-16 and one year later same period Email to all University faculty, staff and students. Xiao (2020) Support for hypothetical policies - - - 2015 Non-institutionalised men and women age 15 and older, handheld computers were used to collect data
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