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Lethen, J. (1996). Correlation and causation. Retrieved November 14, 2006, from http://www.stat.tamu.edu/stat30x/notes/node42.html |
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Corrrelation and
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Deutsch, J. (2005). Correlation vs.
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Newsom, J.
T. (2002). Correlation and causation. Retrieved November 14, 2006, from http://www.upa.pdx.edu\IOA\newsom\pa551\lectur16.htm |
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