EQS 6.4 is a powerful statistical software package from Multivariate Software, Inc., designed for advanced Structural Equation Modeling (SEM) and related analyses, offering features like path analysis, confirmatory factor analysis, multivariate regressions, and handling complex data with new normal theory and missing data methods. It provides an integrated environment for researchers in psychology, education, and other fields to perform complex statistical modeling, integrating data analysis, plotting, and model formulation without switching programs, and includes