POLS 208 Lecture 14: Linear Regression
9 Apr 2018
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How to interpret 2 in multivariate case: 2 is the marginal effect of a one unit increase in x2, all else equal. If two observations were identical on all observed independent variables except for x2, how different should we expect them to be on the dependent variable: ex. Two sports teams are identical; they have the same number of starting players, they are all the same age, etc. The only difference is that team a is 1 inch taller than team b. 19-03-2018: so, in this case, the difference we observe is the marginal effect of height on performance, 2 is the marginal effect of x2 on y. Ziblatt study: dv is electoral fraud, null is = 0, each value is the coefficient (standard errors in parentheses). Interpreting any regression coefficient: magnitude (value): a one unit increase in xi leads to an expected increase of i in the.
