Control Group: What It Is, Key Features, Benefits, Use Cases, and How It Fits in CRO
In **Conversion & Measurement**, a **Control Group** is the audience segment that does *not* receive a change, treatment, or marketing intervention—so you can isolate what actually caused a performance shift. In practical **CRO** work, it’s how you separate “this improved because we changed something” from “this improved because seasonality, audience mix, or randomness helped us.”