Often on check boxes where more than one answer applies the student only checks one box. Page type instructions seem to be ignored. To avoid student frustration try this:
When they press the Grade button, if their answer would be wrong and they only checked one box, first show an interim prompt like "Are you sure? Remember you can check more than one box. " This is just text that appears next to the grade button. They can then check more boxes or leave as-is and hit Grade button again. If the answer has only 1 box and their answer is wrong or if they checked more than one box and their answer is wrong there's no prompt.
Often on check boxes where more than one answer applies the student only checks one box. Page type instructions seem to be ignored. To avoid student frustration try this:
When they press the Grade button, if their answer would be wrong and they only checked one box, first show an interim prompt like "Are you sure? Remember you can check more than one box. " This is just text that appears next to the grade button. They can then check more boxes or leave as-is and hit Grade button again. If the answer has only 1 box and their answer is wrong or if they checked more than one box and their answer is wrong there's no prompt.