Demystifying the Dreaded A/B Test by Chris DeMars

A conference talk transcript introducing A/B testing (split testing) to developers who find it intimidating. Covers what A/B testing is, why to use it (better UX, increased revenue, data-driven decisions, fine-grained code exposure control), and how to implement it using feature flags. Demonstrates a simple 25-line JavaScript implementation using the Harness (formerly Split) SDK, with a brief look at the Java SDK as well. Emphasizes applying the scientific method: forming a hypothesis, setting up control vs. treatment versions, and splitting traffic 50/50 to gather data.