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: Testing how well measured variables represent a smaller number of construct factors.

While 75 observed variables sounds generous, it fills up quickly if you are using scale items. For example, a study with 3 latent variables, each measured by 5 items, uses 15 observed variables. You have room to grow, but complex models with hundreds of indicators (e.g., Big Five personality tests) will crash. lisrel student version

: If your dataset is large enough, try fitting your model on half the data and validating it on the other half to ensure your results are robust. : Testing how well measured variables represent a