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  1. Seeing Data Patterns and Corresponding Correlation Coefficients

    http://noppa5.pc.helsinki.fi/koe/corr/cor7.html

    Use this applet to see the changes in data patterns when correlation coefficients change. Scroll to view the different correlation coefficients and right-click on your mouse and the data patterns will change to match the coefficients.

  2. Mediating Variables

    http://davidakenny.net/cm/mediate.htm

    David Kenny's website includes an excellent discussion on mediating variables. The discussion defines and explains how mediation is demonstrated. Statistical issues are also discussed.

  3. The Relationship of Loneliness and Stress to Human-Animal Attachment in the Elderly

    http://www.deltasociety.org/TextOnly/AnimalsHealthSeniorsLonliness.htm

    This is an example of nonexperimental research that describes a linear relationship between two variables. Review this research paying special attention to the use of the Pearson correlation coefficient.






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