How to require a participant ID?

[arkadiy]

URL of the experiment: https://run.pavlovia.org/arkadiym/pic_rate_a/html

Description of the problem: When the experiment starts and loads the stimuli, there is a participant ID window, in which participants can enter a number. I was wondering if there is a way to require this response? In other words, I am looking for a way to prevent the participants from clicking the “OK” button, until they enter a number.

[Michael]

Hi,

Customizing the dialog box

My question concerns the extent to which the dialog box at the beginning of the experiment can be customized. In particular: Can items be selectively obligatory? For example, I would like to force my subjects to submit their participation code. As of now, you can start the experiment even if you leave all the items blank. Can the size of the dialog box be customized? I need to add more items and some of these are long questions. I fear that putting long questions in the dialog box will get…

[arkadiy]

Thank you for pointing me to this thread!