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, ...

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 ...

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 ...

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 ...