If you are entering this survey for the first time, please enter an email address and password so that the system can recognise your response
If you are returning to complete the survey, please re-enter your email address and password. The system will take you up to the point in the survey where you last pressed 'save'
Your email address will not be available to the researchers, and will not be used to identify you or contact you. At the end of the study, this information will be deleted.