What’s the Technique?
So far, I’ve mainly talked about usability tests that involve observing how individual users behave. This is great for finding problems with your designs, but it’s not good if you need to compare two (or more) different designs and find the best one.
Let’s say you’re working on the text of your sign-up page, and you’re not sure which version works best for convincing people to sign up. Or you’re trying to decide between two different positions for the login form on your home page, and you’re not sure which one will work better for your users. The most common way to answer such questions is with A/B testing. With an A/B test, you can find out which one of two (or more) designs works best.
Even though it’s called A/B testing, ...
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