"Students who completed the online homework activities performed significantly better on a common comprehensive final exam than students who did not participate. . . . These findings suggest responsive online homework in general, and a responsive-adaptive learning system driven by knowledge space theory in particular, has a significant positive impact on student performance in the first-quarter general chemistry course."
Very interesting, sound study. Even though this is done in a face to face environment, the takeaway most likely remains the same - students don't know what effective teaching looks and feels like. Quote: "Compared with students in traditional lectures, students in active classes perceived that they learned less, while in reality they learned more."