Interactions

Regina Branton (Rice--Poli Sci) maintains a very helpful and accessible tutorial on interactive variables in multiple regression models (here). Many of the discussions include informative examples.

Comments

[Daniel Katz]

See Also:
Cindy Kam and Robert Franzese

Modeling and Interpreting Interactive Hypotheses in Regression Analysis

[Jeff Yates]

A webpage for the Brambor, Clark & Golder article is available on Matt Golder's webpage here:

http://homepages.nyu.edu/~mrg217/interaction.html

It has some nice stata do files for graphics. Another helpful article on interactions is Robert Freidrich's workshop piece in the American Journal of Political Science (1982).

[Jeff Yates]

A webpage for the Brambor, Clark & Golder article is available on Matt Golder's webpage here:

http://homepages.nyu.edu/~mrg217/interaction.html

It has some nice stata do files for graphics. Another helpful article on interactions is Robert Freidrich's workshop piece in the American Journal of Political Science (1982).

[Todd Curry]

Discussions of interactions terms in multiple regression models should also include the Brambor, Clark, and Golder piece entitled "Understanding Interaction Models: Improving Empirical Analyses" in Political Analysis 14(1): 63-82.