What I did was the following:
- Set settings to "must pass in order to continue"
- Unchecked the "show results" option in settings to hide the result slide
- Removed the next and back button so user can't freely navigate the quiz slides
- Checked "infinite" attemps on each question slide properties.
Result: The user is stuck on a question until he answers correctly, at which point, he simply clicks the screen or presses "y" to continue to the next question. There is no need for a result screen because once completed, the user knows each question was answered successfully