How to calculate ZCD including Interactions?

Hi there,

on the forum I read, that there is a different approach to calculate the ZCD (from beta draws) when interactions are included.

(https://www.sawtoothsoftware.com/forum/6140/is-there-a-formula-for-calculating-the-zero-centered-diffs?show=6140#q6140)

What are the steps I have to take in this regard?

Thanks very much for your support.

Best,
Chris

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