Friday, October 9, 2009

Correlation and Covariance

We just realized that we did not include commands for finding correlation and covariance in SPSS. Here they are...

Finding corretation and covariance,
Analyze ---> Correlate--> Bivariate --> Select Variables --> Options --> New Window pops up --> select "cross-product deviations and covariances -->OK -->OK

For the scatter plot,
Graphs --> Legacy Dialogue --> Scatter plot --> select variables to "x-axis" and "y-axis" --> OK
To add line of best fit,
double click on scatter plot on the output window, click the left fifth icon on the bottom tool bar, make sure it's on "linear" mode". The line of best fit should be on the scatter plot after clicking the icon.

Hope this helps!

~ your TAs

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