Spatial typology by the Federal Statistical Office (FSO) of respondent's place of residence: Municipality typology 2012 in 25 categories ("Gemeindetypologie 2012 (25 Kategorien)")

Spatial typology by the Federal Statistical Office (FSO) of respondent's place of residence: City/rural typology 2012 ("Stadt/Land-Typologie 2012")

date and time when the respondent started to answer the questionnaire (only online respondents)

date and time when the respondent last accessed the questionnaire (only online respondents)

time in seconds it took the respondent to complete the whole questionnaire (only online respondents)

time in seconds the respondent spent on the survey introduction page (only online respondents)

date on which the survey institute received the print questionnaire back by postal mail (only print respondents)

respondent's sex (official cantonal register information)

respondent's year of birth (official cantonal register information)

respondent's marital status (official cantonal register information)

number of persons living in respondent's household (official cantonal register information)

number of underaged persons living in respondent's household (official cantonal register information)

dummy value indicating whether or not the respondent's own statement about his/her sex matches the official cantonal register information

difference in years between the respondent's own statement about his/her year of birth and the official cantonal register information

whether or not the respondent received at least one COVID-19 vaccination

the weight assigned to the respondent as a result of the weighting by participation (using an iterative proportional fitting procedure)

the weight assigned to the respondent as a result of the weighting by voting_decision_federal_proposal_1, voting_decision_federal_proposal_2 and voting_decision_federal_proposal_3 (using an iterative proportional fitting procedure; only voters)

the weight assigned to the respondent as a result of the weighting by is_vaccinated_covid (using an iterative proportional fitting procedure; only voters)