Related to this I have a measure that I call "general effectiveness" - mine is 83-86% meaning, when I'm, in my view, perfectly prepared, the outcome is actually

Related to this I have a measure that I call "general effectiveness" - mine is 83-86% meaning, when I'm, in my view, perfectly prepared, the outcome is actually closer to that. Every exam I took eventually hovered around that number - assuming I studied. This was particularly visible in math class in high school, where our teacher put emphasis on consistent work. It's a useful model because on one hand if I have a score, I can tell if I did my best and how much of my success can be attributed to individual effort. On the other, when I don't have a score, I at least have a reasonable upper bound on how much was done and how well.