I saw a paper comparing correlations between the latent factors using Wald's chi-square test of parameter constrains. Anyone knows how to get the Wald's chi-square test result with correlation matrix, chi-square and p-values for the latent factors with 'lavaan' package? I was able to use inspect(fit,'cor.lv') to get the correlation matrix for the latent variables but now sure where to find the complete test results including chi-square and p-values. Thank you.
If you have named a parameter in your model, you can use the lavTestWald function to test it.
In your model:
"visual ~~ r1 * speed"
Then to use the lavTestWald function:
lavTestWald(fit, constraints = "r1 == 0")