Participation in the survey is voluntary. As such, the extent to which you answer individual questions is also voluntary. If you cannot, or do not wish to, answer a specific question, you can usually skip to the next question. However, this is not the case for some key questions, known as “filter” questions. The answers to these questions determine which follow-up questions are asked. Filter questions must be answered in order to allow for the questionnaire to function properly.

Please note that our aim is to achieve results that are as representative as possible. Each question you answer makes the results more representative. Your responses to questions regarding personal information and study-related information are thus very important and help us to gauge how representative the results are as a whole.