The EU Kids Online fieldwork involved several questionnaires.
First, a face to face interview with one parent. Second, a face to face interview with the child. Then a self-completion interview for sensitive questions, with one version for 9-10 year olds and one version for 11-16 year olds. As will be seen from the face to face interview with the child, the self-completion interview is inserted into the flow of the face to face interview. Full instructions for the interviewer are incorporated into the child's face to face interview questionnaire.
Full details of the interview administration are included in the Technical Report. The master questionnaires (in English) are below. Questionnaires in each national language are here.
Questionnaire for child (administered by interviewer)
Self-completion questionnaire for child (Children age 9-10)
Self-completion questionnaire for child (Children aged 11-16)
Questionnaire for parent (administered by interviewer)