5The Multiple Regression Model
The two-variable models we have explored thus far are the simplest models we can construct. Most things in life, however, are more complicated. Indeed, for each of our four models introduced in Chapter 2, it is not difficult to imagine other factors that may be important in explaining the behavior of the dependent variable. As discussed at the end of the last chapter, a player's experience playing in the NBA may be important in explaining their salary, but offensive skills should be important as well. In our crime example, we hypothesized that educational attainment may be an important factor in explaining crime rates as greater education increases one's ability to do legal work, ...
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