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## Regression-type Analyses

 This is not a statistics course, so we will not be able to cover regression in full detail. However, we need key parts of regression in order to discuss other methods, such as factor analysis. So will discuss the non-inferential parts of regression in some detail.   We also discuss variants of regression, especially logistic regression, and learn how to use Excel to estimate ad hoc regression-like models that you invent yourself.

### Topics

• Correlation as the expected number of SD's that Y goes up when X goes up by 1 SD

• Linear models of the form Y = b0 +b1X1+b2X2+ε

• When to use various regression-like methods

• Using Excel solver

### Handouts

• Introduction to Regression. [html]
• Regression line. [html]
• Least Squares Approach [html]
• Multiple Regression [html]
• regression-like models [html]

### Bibliography

• David Freedman, Robert Pisani & Roger Purves (1998) Statistics, 3rd Ed.  New York: Norton [a superb textbook]