I know that the goal of this experiment is to discover new retrieval techniques, and for this third trial, I actually tried to follow that. I've never used anything like the mind map before, so this is the one I decided to test. This method seemed like it would be most effective for learning large portions of a textbook, such as an entire chapter. You start with one concept, and divide it into subcategories, and then continue to associate words, equations, etc. with those categories. This seems like the situation where the mind map would be the most useful: association. You can draw lines, circle, anything to connect ideas in your head. It seems particularly effective because you learn it in an organized way. Rather than having random facts floating around in your head, you learn everything in sync with each other, learn what has to do with what, and which concepts, equations, or ideas are related to each other and what that relationship is.
I used the mind map technique for physics. My tests are actually all math based, so all the questions I do are solving problems. However, it's still necessary to understand concepts and equations from the chapter, so I used the mind map technique to study for this.
Like I said, I don't have quizzes, so I actually used an EXAM as the test basis for this, which was a little bit of a gamble. I used this to study for my second exam. The material for this second exam was significantly tougher than the first exam, yet I managed to score an 87 on my second exam versus an 80 on my first exam. So, the mind map technique gets an A in my book, and will most certainly be added to my repertoire.