Moods on Twitter Follow Biological Rhythms, Study Finds - NYTimes.com - 0 views
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Chris McEnroe on 01 Oct 11Isn't this is a mass of what statisticians call convenient sampling?
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This Diigo group is meant to complement the T561 Course, Emerging Education Technologies, taught by professor Chris Dede at the Harvard Graduate School of Education. Please feel free to join the group whether you're enrolled in the course or not
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