scorm-api-wrapper | The pipwerks SCORM API Wrapper | REST library

Your question is a bit confusing. SCORM is an API tying two things together:

• learning content, usually in the form of one or more so-called SCOs (i.e. HTML files with assets talking to the SCORM JS API)
• an LMS serving the learning content and providing the SCORM JS API instance

It looks like you are trying to create learning content, although you provide a way to change the learner name, which is read-only data provided by the JS API.

If that's what you're trying to do, it's not up to SCORM to tell you the score but to you. Based on your code I'm guessing you want each question to be worth a number of points (or at least just one) if answered correctly and the score should be based on that and the total number of questions.

Since you're storing all answers in cmi.interactions already, you could try getting the number of interactions (i.e. answers) first. This tells you the total number of answers and thus the maximum number of points, or cmi.core.score.max.

Since the lowest possible score is zero points if you do a simple tally instead of something more complicated like negative points for incorrect choices being selected, the cmi.core.score.min would then be 0.

The cmi.core.score.raw would be the total number of points, so the number of answers that are correct. You could get this by iterating over the values of cmi.interactions.n.result you set previously (with n being the index between zero and cmi.interactions._count and only counting those where the result is "correct").

However note that submitMCQ should set cmi.interactions.n.result to "correct" or "incorrect" not true or false. A conforming LMS will otherwise reject the value as invalid (which does not raise an exception but instead sets an error flag you have to check explicitly because SCORM is weird like that).