Hello,
I am conducting a study that requiers the participant to complete half of the questionnaire now, and the other half 7 days later. To be given access to the second part , the participant receives a reminder email that contains a link they have to click.
The questinnaire is split by a breaker page that contains a PHP code to only allow participants to move forward if 7 days have pasted.
The problem is that I have received a email from a participant saying that they can't acces the second half even though enough time pasted. Is there something I can do?
Thank you!