I'm trying to write an "item analysis" report plugin, that will produce something similar to this. See this article for background.

Free-response (open) questions should be analyzed differently from the ordinary multiple-choice items, so I'd like to sort them accordingly. But I can't find a good way to do that. If I loop over the array of questions produced by AMC::DataModule::scoring, is there a property that I can use? I can see that 'type' is set to QUESTION_SIMPLE or QUESTION_MULT, so that can be used to tell those apart. But nothing for open questions.

For now, I've been using consistent question titles based on their type, and parsing them with regexes to sort them, but that seems nonideal.