I ran a simple regression model in AMOS and repeated it in OpenMx in order to obtain the confidence interval for my regression coefficients and see that the a certain coefficient in my output came out significant (p <.001) in amos but not significant in OpenMx (i.e., confidence interval contains zero). I am not sure what to make of it. Here is the info from the AMOS output:
Estimate S.E. C.R. (Critical Ratio) P.
.276 .077 3.589 ***
The OpenMx output for that estimate and CI are:
Estimate Std. Error Std. Estimate Std.SE
.2757 .0756 .3895 .1069
Lbound estimate ubound
.000 .276 .413
And if I didn’t set the lower bound=.00, I would get the confidence interval of [ -.413, .413]
Just by calculating the CI by hand: .276 +/- (1.96 * .0756), I get a CI of (.127524, .423876), which converges with the significance of the AMOS output. This is very mysterious because the rest of the CIs seem to converge with Amos results and my calculations by hand so I am very eager to hearing what your thoughts on this are.
Thank you for your time,