Partial credit for drag and drop questions

Hey Joanne, thanks for this timely share! 

I'm far from a pro, but attempting to create an exam with several questions that require custom scoring similar to your examples. Can you help me understand exactly what's happening in your triggers? 

I'm looking at your first example and what I think I'm seeing is that by changing the state of your drop objects, you are able to add 1 to your OneOnOnePartial variable for each "Drop Correct" state present upon submission. Am I on the right track with that bit? 

Then, as the OneOnOnePartial variable changes, it triggers the (behind the scenes) multiple choice question to score 0-5 depending on how many Drop Corrects there were. 

Then, the multiple choice score will be recorded as if you chose one correct answer worth however many points you got from correct matches. 

....wow my poor old brain...  good for you, seriously, very impressive. 

I need to leave my exam open so learners can go back and review/change their answers prior to a final submission and results. Will your example work for this? It will just exist in whatever state until the final submit is hit and then the OneOnOnePartial variable will calculate and apply to the Results variables? 

Totally cool if you don't have time to answer my many questions! 

Thanks for sharing the already helpful example!