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Re:Planning and Running Effective A/B Tests by ellinoora on Thursday January 23, 2020 @11:00AM (#22128547)
There's quite a few problems in traditional A/B testing. See here for example: https://volument.com/learn/problems-in-traditional-ab-testin...
Re:Planning and Running Effective A/B Tests by karol_kielecki on Friday January 24, 2020 @06:48AM (#22137273)
I agree with some points, especially with the time frame. Sometimes traditional A/B tests take too long. Global design changes, new product launches, brand refreshing, or new information architecture are more important.

On the other hand, doing A/B tests for small changes can also have a significant impact on your overall results. I think doing A/B tests is better than not doing them at all.