205
Simultaneous Factor Analysis for Several Groups
All but two of the estimated standard errors are smaller in Model B, including those for
the unconstrained parameters. This is a reason to use Model B for parameter estimation
rather than Model A, assuming, of course, that Model B is correct.
Boys’ sample Estimate
Standard
Error
Estimate
Standard
Error
b: cubes <--- spatial 0.450 0.176 0.557 0.114
b: lozenges <--- spatial 1.510 0.461 1.327 0.248
b: sentence <--- verbal 1.275 0.171 1.305 0.117
b: wordmean <--- verbal 2.294 0.308 2.260 0.200
b: spatial <---> verbal 6.840 2.370 6.992 2.090
b: var(spatial) 16.058 7.516 16.183 5.886
b: var(verbal) 6.904 1.622 6.869 1.465
b: var(err_v) 31.571 6.982 31.563 6.681
b: var(err_c) 15.693 2.904 15.245 2.934
b: var(err_l) 36.526 11.532 40.974 9.689
b: var(err_p) 2.364 0.726 2.363 0.681
b: var(err_s) 6.035 1.433 5.954 1.398
b: var(err_w) 19.697 4.658 19.937 4.470
