Mplus is a statistical modeling program used for analyzing various types of data, including cross-sectional, longitudinal, and multilevel data. It is a flexible tool for structural equation modeling (SEM) and latent variable modeling, capable of handling different variable types like continuous, binary, ordinal, and count data. Mplus features an easy-to-use interface with graphical displays and is well-suited for complex analyses such as factor analysis, growth modeling, and mixture modeling.