1. The authors of the newest edition of the SAS for Mixed Models book present the following table to explain contrast coefficients for a 2
1. The authors of the newest edition of the SAS for Mixed Models book present the following table to explain contrast coefficients for a 2 x 2 factorial. If you agree with their table of contrast coefficients you my simply right OK next to the top portion of the table. If not, you may offer your own solution for the three contrasts in the bottom portion (10) Factor A levels 2 Factor B levels 1 2 1 2 A main effect -1 -1 -1 B main effect -1 -1 -1 A x B Interaction -1 -1 Factor A levels 2 Factor B levels 2 1 2 A main effect B main effect A x B Interaction
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