It is not a good A/B test unless you are blind to which test is CD and which is ... | Hacker News

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TedDoesntTalk on March 11, 2022 | parent | context | favorite | on: CD sales grow for first time since 2004

It is not a good A/B test unless you are blind to which test is CD and which is not. Have you done that? (You need the help of another person)

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