Contents: Preface. E.E. Rigdon, R.E. Schumacker, W. Wothke, A Comparative Review of Interaction and Nonlinear Modeling. F.Y. Jonsson, Modeling Interaction and Nonlinear Effects: A Step-by-Step LISREL Example. M.C. Neale, Modeling Interaction and Nonlinear Effects With Mx: A General Approach. R.A. Ping, Jr., EQS and LISREL Examples Using Survey Data. P.K. Wood, D.J. Erikson, Estimating Interaction and Nonlinear Effects With SAS. K.A. Bollen, P. Paxton, Two-Stage Least Squares Estimation of Interaction Effects. F. Li, P. Harmer, Modeling Interaction Effects: A Two-Stage Least Squares Example. R.L. Tate, Effect Decomposition in Interaction and Nonlinear Models. B. Laplante, S. Sabourin, L-G. Cournoyer, J. Wright, Estimating Nonlinear Effects Using a Structured Means Intercept Approach. K. Schermelleh-Engel, A. Klein, H. Moosbrugger, Estimating Nonlinear Effects Using a Latent Moderated Structural Equations Approach. K.G. Jöreskog, Interaction and Nonlinear Modeling: Issues and Approaches.