Assessing ordinal interactions

#1
Hi everyone

I performed a 2X3 ANOVA and got an ordinal interaction. One variable was pre/post treatment and the other was type of measurement.
The thing is, all p's are significant (p<0.001). So, how can I tell if there are differences in the significant differences?
That is, all measurements increased from pre to post. But how can I tell if one increase was significantly greater than other increases?
I also performed a 2X5 ANOVA and I have the same problem there.

I'm using SPSS
 
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