I have abit of a tricky question for you, but first some context. I carried out a study where students completed 2 sets of questions, and had a survey after each one. The first several questions of each survey are identical. What i wanted to measure is how well they did compared to how well they thought they did. For example, student A may have felt confident that they knew what they were doing, but got every question wrong. I want to do this for both sets and their respective surveys.

I would really appreciate any help!