Whether you’re working on something as a freelancer or building a website/project of your own, I can’t overstate the usefulness of AB testing. If nothing else, knowing about split testing means that when your boss comes out with this…
…you can test it against your own idea and, God willing, prove that you’re right. If you’re currently asking yourself the question ‘what is AB testing?’, Optimizely has a nice breakdown here. Once you’re up to speed, come back and I’ll tell you why AB testing without the B can still be useful.