> some testing vendors use one-tailed tests (Visual Website Optimizer, Optimizely) > Most A/B testing tools recommend terminating tests as soon as they show si

> some testing vendors use one-tailed tests (Visual Website Optimizer, Optimizely) > Most A/B testing tools recommend terminating tests as soon as they show significance, even though that significance may very well be due to short-term bias. A little green indicator will pop up, as it does in Optimizely, and the marketer will turn the test off. People pay brisk money for this?