Causation, meet correlation


The other day I was thinking of the research methods class that I may be teaching in the spring (as of yet there are only two students signed up) and I was reading a research article for the literature review for the MobiMOOC paper that the MRT is working on.  In this article quite a few things correlated, but I they didn't necessarily cause each other. To be fair, the researchers did not claim that there was causation, but I thought that this article would be a good one to analyze, especially for people new to critical review of research literature.

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