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What is LISREL? LISREL (Linear Structural Relations) is one of the most respected and widely cited software packages for Structural Equation Modeling (SEM) . Developed by Karl Jöreskog and Dag Sörbom, it allows researchers to test complex causal relationships, factor structures, and path models that go far beyond standard regression analysis.

| Tool | Max Variables | Max Cases | Syntax/GUI | |------|--------------|-----------|-------------| | | 12 | 75 | SIMPLIS / GUI | | JASP | Unlimited | Unlimited | GUI (point-click) | | jamovi + semLj | Unlimited | Unlimited | GUI | | R + lavaan | Unlimited | Unlimited | Syntax | | Onyx | Moderate | Unlimited | Graphical |

: You have 9 indicators measuring 3 latent factors (e.g., Intelligence, Motivation, Anxiety). Student Version allows this because 9 ≤ 12 variables.