I love A/B testing! It’s hard for me to imagine my life without it, and once you try it, you’ll never go back. Why? Because A/B testing (also called split testing) can improve your effectiveness, and ...

This question originally appeared on Quora: When should A/B testing not be trusted to make decisions? Answer by Edwin Chen, Ex: math and linguistics at MIT, speech recognition at Microsoft Research, ...

If you were going to send the first OkCupid message to a potential date, how many versions would you come up with? And how would you test to see which one was the best one? Fortunately, there is no ...

I think it's safe to say that by about 2010, email marketing was a full-fledged marketing tactic. If your business wasn't using it to engage with consumers, then you may have been missing out on ...

A/B testing is nothing new. So why do so many businesses still fail to do it? Conducting online A/B and multivariate testing is nothing new. The practice has been around for decades now, with Google ...