Response options: Break-off, Interviewer error, Refuse to answer, Don't know, Agree very strongly with statement 1, Agree with statement 1, Agree with statement 2, Agree very strongly with statement 2, Agree with neither
Response options: Interview, Face to face (CAPI), Interview, Video (web based), Self completion, Self administered web based questionnaire (CAWI), Self completion, Self administered paper questionnaire, Not available