By Zachary M. Seward

From direct mail to web design, A/B testing is considered a gold standard of user research: Show one version to half your audience and another version to the other half; compare results, and adjust accordingly. Some very cool examples include Google’s obsessive testing of subtle design tweaks and Dustin Curtis’ experiment with direct commands and clickthrough rates. (“You should follow me on Twitter” produced dramatically better results than the less moralizing, “Follow me on Twitter.”)
So here’s something devilishly brilliant: The Huffington Post applies A/B testing to some of its headlines. Readers are randomly shown one of two headlines for the same story. After five minutes, which is enough time for such a high-traffic site, the version with the most clicks becomes the wood that everyone sees.
Headlines have always played the most promotional role in news, charged with selling readers on the articles they adorn, so it only makes sense to apply the best tools of market research to their crafting. Think of it as a more rigorous version of magazines adjusting their covers based on newsstand sales. Keep reading »