The questionnaire needs to be filled in on-line in one single session. This means that the respondent cannot save incomplete questionnaires. We strongly recommend first saving the questionnaire text as a pdf file, in order to examine the questions and elaborate the replies before starting an on-line session. To do so, the respondent needs to click "Download PDF version" (upper-right corner of the screen). Please note that you will only have 90 minutes to fill in the questionnaire and that if you have not been able to fill it all in and save it within this time frame, the session will automatically expire and the replies will be lost. This is why it is so important to prepare the answers in advance, before starting to work on-line.