Randomizing a mastery test with multiple questions
Hi. I have my mastery test in a question bank. It consists of 25 questions. I only want the mastery test to include 20 questions but I want those 20 questions randomly selected from the full set of 25. In addition, I am allowing my learners to retake the quiz if they fail so I want these same 25 questions randomized for any retests - potentially giving them questions that they haven't seen before.
But I don't see any option to only show 20 questions. I can select 20 of my 25 questions - which leaves five questions wasted and I want to use all 25. Am I missing something? I've looked in the tutorials and I can't figure out how to do this. Help! Thank you!