Hello!

We are confused. As we understand, SPSS and Systat are both products

of SPSS Inc. So, we thought that their way to do analysis is identical

also. It seems that this was a stupid thought.

Problem: In Principal Component Analysis (Varimax-rotation) both

programs produce seven factors and all loadings are identical

regarding their power. But, one factor produced by Systat has inverse

loadings compared to what SPSS produces:

Systat SPSS

.787 -.787

-.701 .701

.666 -.666

This is a real problem because we use factor scores based on these

loadings.

I would be very grateful, if someone can tell us what is going

(wr)on(g)....

AV