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, ...

A/B testing (split testing) is the process of setting up two versions of one page, and testing which page outperforms the other. Here's how to do it right. Did you know that you can test certain ...

You've built your website for a reason, and in most cases, that is to sell something. But how can you be sure the website you have designed is converting all those visitors into actual sales? Maybe it ...

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 ...

Now imagine doing any of these things on a smartphone. Chances are it would take several false starts and -- if you were dedicated to the goal -- a lot of struggle before the job was done. It has ...

Many nonprofits in low- and middle-income countries face a critical mismatch: urgent social problems demand rapid program iteration, yet organizations often wait years for externally-produced ...

A/B testing has been around for a few years now and is an optimisation strategy that seems to sit under the radar, quietly and studiously getting on with the task at hand, without creating any great ...

Learn how A/B testing and multivariate testing impact SEO and 8 tips to improve your tests and processes to maximize your site's SEO performance. To be successful in SEO, we need to have an ...

Opinions expressed by Entrepreneur contributors are their own. Scientists would never push a drug to market without testing it to make sure it is effective; a similar principle should be applied to ...