I am an instructional designer supporting and instructor who is using team based learning. In his course he has students take a quiz individually, then the same quiz as a team. The second team based quiz allows multiple attempts but penalizes the students for each subsequent attempt. The purpose of this is to encourage students to discuss what the correct answer should be before submitting.

This is similar to what is described here: https://community.canvaslms.com/t5/Question-Forum/Is-it-possible-to-allow-multiple-attempts-on-a-qui...

Currently in the Canvas Quiz it is possible to keep the highest, or average of scores. It would be helpful to be able to implement this strategy.