I have received a reminder but I have already filled in the questionnaire. How can that be? If you have already filled in the questionnaire [...]

I have lost my login details. Who should I contact about this? Please contact us via support@integron.nl if you have lost your login details.

I haven’t received an invitation, what should I do? First of all, you should check your spam folder to make sure that your invitation has [...]

The questionnaire is not working If the questionnaire keeps on loading, then in many cases it helps to copy the link to a different Internet [...]

Login with username and password is not working Check the web address: questionnaires via the Internet can only be filled in on the website: https://survey.integronresearch.com. [...]

Login via the link is not working Are the ‘Username’ and ‘Password’ input fields empty in the login screen that appears? If they are, something [...]

What software do I need to be able to fill in a questionnaire? You will need the following software to fill in the questionnaire: Internet [...]