Dear Mrs. Stuntz, I'm a ph.d student in cognitive science. My interest is how students reason and learn about dynamic systems with the help of Causal Loop Diagrams and Stella. Right now I'm doing a study on master students in environmental science, and I've videofilmed them when solving problems with these tools.
Now, my question: I would like to categorize the students based on the level of understanding of dynamic systems in order to see if they progress during the five week course.
In other words; I'm looking for a hierachy of qualitatively different ways of understanding dynamic systems - would you happen to know of anything like what I'm trying to describe?