Thank you, this solved my problem
Sorry for reasking, but I'm trying to do the same thing, disable the check button, but I'm completely lost.
Can you elaborate on what you added and where exactly in the question settings?
Can you elaborate on what you added and where exactly in the question settings?
Are you just trying to hide the check button all the time, or only when certain conditions have been satisfied (e.g. a 100% penalty has been reached)?
The first one is very easy - just click the Hide check button:
The first one is very easy - just click the Hide check button:

Henry's posting was also explaining how to set up JavaScript to hide the check button when certain conditions are met. That's much harder. If you want that option, please post back telling us what under what conditions you wish to hide the check button.
I want the check button become hidden after students click it 3 times.
I guess it's impossible unless I use a template grader instead of the exact match, right?
Could you please tell me how it can be done step by step?
I guess it's impossible unless I use a template grader instead of the exact match, right?
Could you please tell me how it can be done step by step?