Adding questions before online experiment
I am about to run an online OpenSesame experiment using JATOS, and I was wondering if it would be possible to make participants answer a question before the experiment itself. For example, once participants get the link to the online experiment and click on it, I was wondering if it is possible to ask them the identifier number I will give them to keep a record of all the experiments the same person has done. Thus, onece the participant types his/her personal identifier number, the experiment itself would begin: clicking on the OSWeb screen, instructions, etc.
Thank you in advance for the help!