I often use the calculator to decide how long to run an A/B test. Up until recently we've just used Target as the reporting source, but have recently enabled CJA which we're beginning to use.
When using CJA to report out on Target activities (via the Experimentation Panel), I've noticed that the lift and confidence can take much longer to calculate than it would with the same page/page traffic in Target. Is this because we're applying the success metrics after the fact, rather than defining them within the VEC? And does that mean we should be using another calculator to determine test duration when using CJA as the reporting source?
Thanks in advance!