Could this quiz be converted to multiple choice using questions with checkboxes and with more than 1 correct answer?

I think one of the easiest ways would be to give them your questions in a form so it displaces like: " What is best? A. candy B. cheese C. cats D. chocolate" Then have it so they enter the letter A, B, C, or D. Like so.

var questions = [
    ['What is a very popular pet? A. Cat B.Dog C. Parrot D. Fish', 'A', 'B'],
    ['When did Apollo 11 land on the moon? A. 1960 B. 1966 C. 1969 D. 1970', 'C']
];
for (i = 0; i < questions.length; i += 1){
  var answer = prompt(questions[i][0]);
 if  ( answer == questions[i][1] || questions[i][2]){
   document.write('<h1>' + answer + ' was correct!' + '</h1>');
 } else {
   document.write('<h1>' + answer + ' was wrong! Instead the answer was, ' + questions[i][1] +'</h1>');
 }   
}

This should work for what you want to do. Just as a note if you did not know || means "or" in JavaScript.

Thanks Ashton I've been struggling with the concept of this as I am just starting to learn about arrays. The ultimate way I would want the quiz to look is to use check boxes instead of a prompt box but also grade the test at the end including a solution button to show the answers. I am a beginner and I can see how code can get very complex very quickly. Thanks again. I really appreciate the help. Rob

Hi Ashton Just one other thing. If all my answers to a question was correct, would I have to alter the if statement? thanks Rob

Thank you for the help. I'm still trying to find the best way to learn Javascript. So many different approaches from books to videos. Reverse engineering existing code seems to help to see the bigger picture.