Larry HatcherLarry Hatcher, Ph.D. is Professor of Psychology at Saginaw Valley State University in Saginaw, Michigan. He is author or co-author of six textbooks on statistics and data analysis, including A Step-by-Step Approach to Using SAS(R) for Univariate & Mutivariate Statistics and the widely-cited A Step-by-Step Approach to Using the SAS(R) System for Factor Analysis and Structural Equation Modeling. Read More Read Less