Response options: Never or almost never, Some lessons, Most lessons, Every lesson or almost every lesson, Valid Skip, Not Applicable, Invalid, No Response
Response options: DE,SE: Inapplicable;RU: Inappropiate response;SG :Missing{In, Not asked in survey, Not applicable, No answer, Don´t know, Most people can be trusted, Need to be very careful
Response options: Never or almost never, Some lessons, Most lessons, Every lesson or almost every lesson, Valid Skip, Not Applicable, Invalid, No Response
