The GSHS is a school-based survey conducted primarily among students aged 13-17 years. The GSHS uses a standardized scientific sample selection process; common school-based methodology; and core questionnaire modules, core-expanded questions, and country-specific questions that are combined to form a self-administered questionnaire which can be administered during one regular class period.

Countries develop their unique questionnaire for students using the three components described above: Core Modules, Core Expanded questions and Country Specific questions. The questions are translated into the appropriate language of instruction for the students and pilot tested for comprehension. All questions share common characteristics to enhance the flow of the survey and comprehension by the student. To help protect student privacy, no skip patterns are allowed.

The 10 core questionnaire modules address the leading causes of morbidity and mortality among children and adults worldwide:
  1. alcohol use
  2. dietary behaviours
  3. drug use
  4. hygiene
  5. mental health
  6. physical activity
  7. protective factors
  8. sexual behaviours
  9. tobacco use
  10. violence and unintentional injury
Visit the GSHS homepage.