Hi,
I have a question about the contrast weights in flexible factorial. In Glascher and Gitelman's paper they use the example of a 2x3 within-subjects design with columns A1B1 A1B2 A1B3 A2B1 A2B2 A2B3. The interaction A x B is defined as -1 0 1 1 0 -1, but isn't this the interaction between the two levels of factor A (A1 and A2) and two levels of factor B (B1 and B3)?
Thank you.
Best regards,
Michael
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