Max Attempts for a test

When the user gets to the failed page, have an action that adds 1 to a variable that you setup for keeping track of attempts. Also have a button that resets the test and sends the user back to the test only if the attempts variable is less than or equal to your maximum number of attempts.

You also need to make that variable "Retained".

Then, depending on how the user can get to the test, you might need something on the first page that checks the variable and stops them from taking it after X attempts. Contact me directly if you need more help.