GYTS: Methodology
- School-based survey of students aged 13–15 years
- Can include public and private schools
- Multistage sample design with schools selected proportional to enrollment size
- Classrooms chosen randomly within selected schools
- All students in selected classes eligible for participation
- Anonymous and confidential self-administered questionnaire
- Countries may add questions to the questionnaire
- Computer-scannable answer sheets
- Requires only 30–40 minutes to administer
- Fieldwork conducted in 6–8 weeks
- Country-level data with regional-level stratification possible
- Core questionnaire (standard set of survey questions used in all locations)
Legend
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Contact Us:
- CDC/Office on Smoking and Health
4770 Buford Highway
MS K-50
Atlanta, Georgia 30341-3717 - 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348
24 Hours/Every Day - tobaccoinfo@cdc.gov
