Residual variance correlations in path analysis
Posted on
fife
Joined: 07/01/2010
Forums
Suppose I have two endogenous variables (A and B) and I draw an arrow (double-headed) between them. What is openmx doing in the background? Is it fitting a correlation between the residuals of A and B?
It's a residual cov
If they are endogenous (i.e. they are variables with one-headed arrows going in to them), then the path with a double-headed arrow between them is a residual covariance. In LISREL terminology, the two-headed arrow between these variables goes in the Psi matrix, abbreviated as PS.
Log in or register to post comments
In reply to It's a residual cov by mhunter
Thanks!
That's what I thought. Thanks Mike!
Log in or register to post comments