Definition
Control group is the group in an experiment that doesn't receive the treatment being tested. Founders reach for it when a vague conversation needs a shared, specific meaning. Name it clearly, then let the next decision — a hire, a price, a test, or a pass — follow from that meaning.
In the room
How the word shows up in a real conversation.
You know Control group is doing work when it changes a weekly choice — price, hire, channel, or kill. The working definition: Group in an experiment that doesn't receive the treatment being tested.
Common mistake
Using Control group as a label instead of a fact. If you cannot point to the evidence — a number, a customer, or a written assumption — you are using the word as jargon.
See also
Contractual joint venture
Business partnership based on a contract rather than shared ownership.
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Contribution margin
Amount remaining after variable costs are subtracted from sales revenue.
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Convertible bond
Bond that can be converted into a specified number of company shares.
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Corporate action
Event initiated by a company that affects its shareholders or securities.
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