A more robust method is to conduct a factor analysis before running the regression analysis, and then to rotate the factors to insure that the factors are independent in the factor analysis ("Statistics Solutions, 2012").

9. Discuss autocorrelation (serial correlation) assumption & implication to student work

Autocorrelation (lagged correlation or serial correlation) occurs when the correlation between values in a random process at different times that is a function of the time lag or of the two times ("Statistics Solutions, 2012"). That is to say that there is a relationship between a variable and itself over intervals of time ("Statistics Solutions, 2012"). These serial correlations occur in repeating patterns when the level of a variable at a time certain affects the variable at a future time ("Statistics Solutions, 2012").

10.Discuss ways to overcome the serial correlation

When using an estimated equation for statistical inference in hypothesis testing, the residuals will...
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