Spaced repetition is interesting, but I was under the impression that it was most helpful for improved memorization. I've always taken the criticism of the education system that it doesn't do a good job of making the material part of the student as the most important critique.
Is there such a thing as learning without any memorization? And there's little point in studying how it aids abstraction & conceptual understanding if you can't even get the schools to use it for learning English or foreign language vocab, for example.
I've wondered for some time now what the effects of online education might be on gender and income inequality, specifically as online education interacts with IQ and Conscientiousness (compared with offline education). I ran into a study of a course done online and offline that found correlations with Conscientiousness, which prompted me to start writing out my thoughts: https://plus.google.com/103530621949492999968/posts/aKa3qLatwZ3
The model/argument I give (towards the bottom) is logically trivial, and the basic idea seems pretty intuitive - offline classrooms remove some need for self-discipline/Conscientiousness and performance is more g-loaded - that I'm sure I can't be the first person to think of it.
Does anyone have statistics or citations handy which might help in any essay I write on the topic?