There was a download of EQS63 6.3.116 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer is commonly called EQS63.exe.
The following version: 6.3 is the most frequently downloaded one by the program users. EQS63 lies within Education Tools, more precisely Science Tools. We recommend checking the downloaded files with any free antivirus. This program was originally created by Multivariate Software, Inc.
From the developer:
EQS is a structural equation modeling software. EQS makes structural equations modeling even easier with Diagrammer, EQS' new model drawing tool. Make just a few clicks on the mouse and you can draw presentation-quality diagrams. Once your model is drawn, choose Build EQS from the scroll-down menu and EQS runs your model, based on the diagram.
You may want to check out more software, such as Panel, Lasergene or gitoolbox, which might be related to EQS63.