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A curated summary of the top questions asked on our Slack community, often relating to implementation, functionality, and building better products generally.
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GENERAL

Does Statsig's CUPED Use OLS and Support Binary Metrics?

Date of slack thread: 5/27/24

Anonymous: Hey again, Does CUPED in StatSig use OLS regression method only? I just wonder if CUPED can be used for binary metrics if we optimize for form completion rates, for example. I guess we will need logistic regression for that. Recently Khameleoon A/B testing tool representatives told me that their tool supports CUPED for binary metrics as well, so it seems possible.

Cooper Reid (Statsig): <@U057R37HM3K> I’m not familiar with OLS method, but as the bot stated we don’t document that, so it’s likely an alternative approach. More on our CUPED implementation here.

Timothy Chan (Statsig): Hi Sergei, we do use OLS and functionally, the method is the same as a logistic regression when you provide a binomial metric.

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