Hi All,

I have the following problem and I hope that someone here can enlighten me.

I am running the following analyses with the indicated post-hoc comparisons:

GLM agg1 agg2 agg3 BY sa

/WSFACTOR=Zeit 3 Polynomial

/METHOD=SSTYPE(3)

/EMMEANS=TABLES(OVERALL)

/EMMEANS=TABLES(sa)

/EMMEANS=TABLES(zeit)

/EMMEANS=TABLES(sa*zeit) compare (zeit) adj (bonferoni)

/CRITERIA=ALPHA(.05)

/WSDESIGN=Zeit

/DESIGN=sa.

The factor "Zeit" has three levels and with the compare (zeit) command above I am getting all comparsions (1.vs 2, 2 vs. 3. etc.). However, I need to test specifically one level (for example agg1) against another one (for example agg 2).

And I dod not know how to tell SPSS to do that.

Importantly, it is that I need to compare agg1 with agg2 on each level of sa seperately.

Additionally, I see the "significance" column in the "Pairwise comparison" table. This might be a hint, but I do not see a) the exat test statistic and b) degrees of freedom or the like, which I would need to properly report the results.

The multivariate table below, again, indicates the comparsion for all types of combinations of "Zeit".

I hope that this was clear enough, to grasp what the problem is. I am convince that this is not a statistical problem but more one of SPSS or - better - me and SPPS.

Thank you very much in advance!

Markus.