- Most linear: They started from the first question and went to the last. Not much variation in the linear path.
- Intermediate: They focused on one question for a while to solve it and then went to another, but not in a linear way (jumped from 3 to 1, for example). Inside each problem they followed a linear path.
- Most non-linear: They jumped inside problems and outside. Some finished part of a problem and moved to another. An extreme case was a student who sometimes worked a problem out of order (came up with the answer, intuitively, first before going through the math to show it).
- Those with strong math backgroun but realtively weak intuition (plausibly not much economic background).
- Those with economics/business background, better intuition, weak mathematics
I have been dealing with this issue in my professional life for quite a while: I have very good math and technical background, how I can develop more intuition. What I learned from "Nihil Nimus" book was a big help. My observation today is another piece of this puzzle. If I am right, to improve intuition I should try to think and work less linearly.
These are mostly conjectures based on limited observations. If you have your own, please write it in the comments!