Response options: Lone-person, Single with presence of children and/or elderly, Married/Cohabiting with presence of children and/or elderly, Married/Cohabiting without presence of children and/or elderly, Widowed/Divorced with presence of children and/or elderly, Widowed/Divorced without presence of children and/or elderly
Response options: Completed Interview, Always busy, No answer, Answering machine household-no message left, Fax / Data line / Pager, Non-residence (business) / No one lives there, Non-working number / Disconnect, Wrong number, Fixed initial appointment (general non-contact), Respondent never available for interview / respondent cannot set appointment during field period, Long-term absence for the fieldwork period, Household-level refusal, Initial refusal (general), Respondent refuses survey topic (break off), Respondent refuses all surveys, Respondent in a hurry / No time, Respondent refuses survey by phone specifically, Refusal: survey too long, Respondent deceased, Respondent physically or mentally unable to complete the interview
Response options: Break off, Legal skip, Interviewer error, Potential respondent, Number off, No one answers, Number busy, Answering machine, Other household member answering
Response options: -7 Legal skip, -9 Break off, Poor quality of education, Is generally against online teaching, Have no internet, Physical education in the family, Interviewer error, Everyone speaks at the same time, It was the first year at school, They prefer to go to school, It is difficult, Students' performance assessment related issues, There was no electricity, Difficulty of understanding, Lack of interaction, Lack of management, Problem of lack of space, Time constraints on online lectures, Is bad, This is not teaching