January 24, 2023
Google Optimize is sunsetting. Now what?

The free A/B testing platform, Google Optimize, is sunsetting and will no longer be available. What should experimenters do? This article outlines three simple steps to prepare for the sunset. Hint: don't just sit around and watch it!

January 11, 2023
How long should an A/B test run?

How many visitors do I need to run a statistically significant A/B test and achieve valid, reliable results? This article will tell you everything you need to know to correctly calculate sample size and test duration for a split-test. Learn sample size best practices and industry-standard tools.

September 13, 2022
A simple way to accurately calculate Minimum Detectable Effect (MDE)

Calculating the Minimum Detectable Effect (MDE) can feel like a hair-pulling, speculative exercise. Luckily, this step-by-step guide is here to show you exactly how to accurately calculate your MDE to yield powerful, trustworthy test results.

August 24, 2022
The winnerâ€™s curse: the BIG problem with enormous lifts in A/B testing

Low sample testing is problematic and can result in hugely mis-leading data where tests appear to be enormous winners but, in actuality, aren't. This article presents a practical 5-step approach to overcome the traps of low sample testing and arrive at valid, trustworthy results. What are the 5-steps? Find out here.

May 19, 2022
Finally! Statistical significance clearly explained

Understanding and calculating statistical significance is quite complex. Many experimenters donâ€™t truly know what statistical significance is or how to derive a statistically significant test result. To properly call a winning (or losing) A/B test, itâ€™s really important to clearly understand what a statistically significant result is and means. This article, written in plain English is here to set it all straight for you.

May 18, 2022
The top-10 nav bar A/B test ideas you absolutely must try

It may seem like a small change, but optimizing your navigational menu can have a big impact on conversions. This article provides you with do's, don'ts, and the top-10 navigational bar A/B test ideas you absolutely must try to easily increase conversions on your site.

April 20, 2022
Everything You Need to Know About A/B Testing for Mobile Apps

A/B testing your app delivers the best possible experience for users and validates your assumptions and ideas. In this comprehensive article, discover the benefits of app A/B testing, how to do it, and the optimal process to follow.