I think we’re at the point that we can capture just about all communication in a course. Via email, yes, and via any journals and via and submitted papers (as in Word, etc.). But also (!) by recording things spoken in class and transcribing those spoken things with the aid of cutting-edge software (perhaps donated by an interested company).
This would give us a pool of virtually all expressed thought in course that we could analyze linguistically and temporally cross-referencing the topic and the person speaking to see what patterns emerge.
Worth talking about? Imagining? Throwing around some possible ingredients?
I propose so, and suggest we gather the results in a (where else?) collaboratively edited google doc.