Just a quick response here Gordon regarding point three. I can change the configuration for the assignment in JQuiz so that it doesn't show either the smiley face or the X. See below. The student gets feedback but he or she isn't told if the answer is right or wrong that way. I could also just leave them empty. The feedback is kind of long. Something simpler would likely be better like "tx" or something like that. I probably should have changed Guess Correct below too.
as opposed to