Regression Review

Different ways to think about regression

  1. Describing the relationship between two variables (describing bivariate data)
    • correlation (assesses the linear relationship between two variables)
      • Two Parts.
        1. Covariance
          1. measures the association between two variables
          2. Literally, the variance across two variables
  2. Testing if a correlation is significantly different than zero
  3. Finding the line of best fit from a noisy data scatterplot

You regress DV on IV

The slope of the equation is the association between the two variables