Longitudinal CFA

[marklhc]

• Use an input matrix of variable names to link items across time points
• Create function to automatically generate lavaan syntax with different item names
• Add argument to constrain and free types of parameters (e.g., loadings) and specific parameters (e.g., loading of item 3 at time 2)
• Allow user-input models for multiple latent variables, cross-loadings, equality constraints, etc; if not supplied, assume a unidimensional model
• Specification search

[marklhc]

Next:

• [ ] Categorical items.
• [ ] Unit test