More Evidence That Lectures Are Ineffective

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My own view, because I know everybody cares, is that lectures are way over-used, but in no way totally ineffective. (Of course I don't think that anybody thinks that they're totally ineffective...but that's a low bar...)

My hypothesis: the more interested a given listener is, the more effective a lecture will be with respect to that listener.

Really I guess I should say: I guess that there will be less of a difference between the effectiveness of lectures and the effectiveness of other, more participatory methods of teaching the more interested the audience is.

Just a guess, of course.