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A comment on What works in e-commerce – A meta-analysis of online experiments [pdf]. Parent comment

Re:What works in e-commerce – A meta-analysis of online expe... by gwern on Wednesday June 21, 2017 @12:03PM (#14604950)
Great to see a multilevel model used to shrink the effects. I was reading the abstract and thought, they probably didn't correct for sampling error - but you did.

I'm not an expert on plate notation, though, so I'm not sure which MLM you used. Is it basically `Revenue ~ (Covariate_1 + ... + Covariate_n | Treatment | Category)`?

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