Allow infinite attempts, but prevent retakes if passed. Possible?

Hello,

I have a situation where a learner must achieve a score of 90% to pass a quiz. I am allowing infinite attempts at the quiz.

After the quiz summary slide, the learner has the opportunity to return to the beginning of the module. It is possible for the learner to go through the module once and achieve a 90% (thus satisfying the completion criteria), but without exiting the module, return to the beginning and take the quiz again. On the second attempt they could get a lower score, and upon exiting, the LMS would show them as complete (from the first time through the quiz) but with a score below 90 (from the second time through the quiz).

Is there any way to tell Captivate "hey, if they've already passed, don't let them take it again"?

I looked at the totalAttempts variable, I thought about giving them 1000 attempts and if they pass, setting their totalAttempts = 1000, but it doesn't look like that variable can be updated.

The only other thing I can think of is to create 2 branches - one with content and quiz questions, the other with just content. If they have passed the quiz and start over, they go down the content only branch. The problem with this approach is that the content is duplicated, meaning larger file sizes, twice the maintenance work, etc.

Any thoughts?