If you have only one test in the course, you could just set the value of AICC_Score. Otherwise, each test has a Lectora variable which holds its score. If your test is “test 1” the associated variable is “test_1_score”. You could have an action on a page following the test that calculates the “arbitrary score” based on the actual score. I would say that for the sake of elegance, the arbitrary score should be assigned to a new variable rather than modifying the actual saved test score.