After years of alternating between marketing, entrepreneurship and technology; programming, and learning psychology as a hobby, Ryan found a discipline that combines the best parts of all of them, and jumped in head first into the CRO world. First by getting certified and working for a leading agency to learn the ropes, and then by co-founding Koalatative and Katsed to provide CRO consulting and services while producing content to level-up the next generation of optimizers.
The Minimum Detectable Effect (MDE) is the smallest true effect an A/B test can detect with sufficient statistical power, factoring in test duration, sample size and practical significance. There's a big tradeoff between MDE and test duration. If your MDE is too high, you risk missing real improvements, but if...
Interview with Ryan Thomas There are a lot of best practices in the CRO world that people tend to follow blindly. "You must run a test for at least two weeks", for example, or "you should only run one test at a time on the same page". In this article,...
