Some people may view this as counter-intuitive, but "on average, instructional use of computers for writing has a positive effect on the quantity and quality of writing students produce," at least according to this metaanalysis of 26 studies conducted over the last ten years. I would like to point out, as well, that this article is an almost textbook example of the proper use of research data; I cannot say enough about how important it is to isolate the variables being discussed, to consider alternative hypothesis, and to understand that while individual studies may produce contrary results (and there are some cited in this study), it is the aggregate that can give us a generalization of considerable precision.
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