A pre-processor that handles data manipulation and calculates covariance matrices from raw data.
First, I need to check if there's a version called LISREL 88. My initial thought is that LISREL was developed by Karl Jöreskog and Dag Sörbom in the 1970s, with the original LISREL 7 being a major version. LISREL 8 and later versions followed. So maybe there's a confusion here with the version number. It's possible the user is referring to a very old version or a beta version that's not commonly known. lisrel 88 free download upd