The wording of questions and response options is susceptible of adaptation to both country specificities and occupational areas: the symbol < > indicates that the terms withing angle brackets should be adapted to national or occupational contexts. Similarly, the questionnaire used the ISCED classification to refer to educational levels. The ISCED level is indicated within <…>. The national project managers implementing the study, in collaboration with the contractors are responsible for replacing the ISCED levels with the corresponding national levels or degrees.
The final sequence of the questions should be established considering screening questions, filters, and pivots. Testing and field trial of the items in the educational institution questionnaire will lead to determine the optional sequence and question flow. The following questions and response option should be considered as preliminary and in need of further refinement to improve their effectiveness.