After an optional introduction, the respondent can choose one or more answers. If the chosen answers correspond exactly to the "Correct" choices defined in the question, the respondent gets 100%. If he/she chooses any "Incorrect" choices or does not select all of the "Correct" choices, the grade is 0%.
The feedback specified for each choice is displayed next to any selected answers.
At least one choice must be marked correct for each question. Add a "None of the above" option to handle a question where none of the other choices are correct.
This question type is unlike the multiple choice question with multiple answers because the choices do not have fractional grades. The possible grades for a question are either 100% or 0%.