Yes, this is an ongoing discussion here. We would like to support having the option for multiple choice quizzes with multiple answers, but currently that is not supported.
The results you are seeing are because you have setup multiple correct answers for each note, and that will not work properly.
We've heard this feedback before, and would like to see if we can add support in future. It requires quite a bit overhaul of slideshow logic, and even navigation behavior (eg it is annoying to have to hit an extra button to check answers, but otherwise how do you know someone is finished answering. That is a big downside in my view.)
Well, we just use the standard dictionary definition.
multiple-choice | ˈməltəpəl ˈˌCHois |
(of a question on a test) accompanied by several possible answers from which the candidate must try to choose the correct one.
But it is not that important. The point is we indeed only support the form of quiz that has a single correct answer.
Ok there are cultural differences how multiple choice is defined, from wikipedia:
"It should be noted that multiple choice in English strictly a valid answer from several means (therefore a false friend), which corresponds to German single choice, while several valid answer options in English is called multiple response.  "
So, just to clarify the terms we're a talking about. And thats indeed important because the information on your website led me to the decision to buy the app!
Wikipedia makes it clear that the term ‘multiple choice’ in English (which our web site is) means what we say it means. The other term — ‘multiple response’ — is used for what you would like to have.
Given that you bought the app under a false impression, I am happy to refund the purchase if you purchased directly from us. If you purchased from the Mac App Store, you can contact Apple to get a refund.
it is not our intention to mislead anyone, and we offer a free trial from our web site so that people can try the app before purchasing.