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Exercise

Fix the Zero df Model

Identification is a core component in SEM models and you should have at least one degree of freedom for any model. Using the text.model from the last exercise, update the model to create a degree of freedom.

You should label two of the coefficient paths to a to set them equal to each other. lavaan and the HolzingerSwineford1939 dataset have been loaded for you.

Instructions
100 XP
  • Update the text.model to have x5 and x6 paths both set to a.
  • Analyze the model with the cfa() function.
  • View the updated model with the summary() function.