LISREL
LISREL is a proprietary statistical software package used in structural equation modeling for manifest and latent variables. It requires a "fairly high level of statistical sophistication".History
LISREL was developed in the 1970s by Karl Jöreskog, then a scientist at Educational Testing Service in Princeton, New Jersey, and Dag Sörbom, later both professors of Uppsala University in Sweden. The most current version is LISREL 10.1.LISREL is mainly syntax-based, although recent versions have featured a graphical user interface.
SSI has recently changed from e-Academy to a "home-built" solution for distributing the rental versions of their software.