This much-needed pedagogical guide explains the usage, interpretation, and presentation of interactive terms in regression analysis. Authors Franzese and Kam address persistent difficulties in the modeling and interpretation of these terms, and help scholars draw stronger links between substantive theory and statistical modeling. Their concise, self-contained guide is designed to help undergraduate and graduate students appreciate the proper use of statistics in the social sciences, and to offer researchers and practitioners a clear, compact, and handy reference guide on the use of models that incorporate interactive terms.