Data collection mode: Standardized face to face Interviews and Standardized video Interviews , CAPI (Computer Aided Personal Interviewing)
Sample: Swiss resident population aged 15 and over, living in private households, who speak one of the main national languages (German, French or Italian). No upper age limit.
Sampling: Single stage equal probability systematic sample (no clustering); the sampling is done by the Swiss Federal Statistical Office out of the register sample frame
- Gross sample size 3102
- Net sample size (without ineligibles): 3077
- Interviews: 1523 (1473 Face-to-Face, 50 video) (Response rate=49.5%)
Design:
- cross-sectional, repeated every 2 years, part of the questionnaire being identical
- Fieldwork period: 4 May 2021 - 2 May 2022
Fieldwork institute: M.I.S. Trend SA, Lausanne
No weighting, all weight=1, according to the sample design (all respondents have the same probability to be selected)
