How does it work?
Do I need multiple accounts?
No, Birdy works with a single account! It uses the Twitter API to update your profile with the variations you provide.
Is it really A/B testing?
Technically, Birdy uses a method called "switchback testing". Instead of bucketing a profile visitor to experiment A or B, Birdy alternates between "treatment" and "control" periodically. In other words, Birdy buckets groups of profile visitors over time, rather than individual profile visitors. This approach of split testing has been popularized by DoorDash.
In many ways, switchback testing is exactly like A/B testing, but instead of randomizing based on something like deliveries, we randomize based on time-region units. —DoorDash
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