Chapter 59. Modeling nonlinearities and interactions

Questions answered in this chapter:

Image What does it mean when we say that an independent variable has a nonlinear effect on a dependent variable?

Image What does it mean when we say that the effects of two independent variables on a dependent variable interact?

Image How can I test for the presence of nonlinearity and interaction in a regression?

Answers to this chapter’s questions

What does it mean when we ...

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