# A/B/n tests

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An A/B/n test is a `Test` [experiment](https://docs.hypertune.com/concepts/experiments) with a single dimension with two or more arms.

To create an A/B/n test, insert an `Experiment` expression in your flag logic. Create a new experiment from the dropdown. By default, it will have two arms called `Test` and `Control` each allocated 50% of traffic. In your flag logic, enable your feature for the `Test` arm and disable it for the `Control` arm.

To change the number of arms or their traffic percentages, navigate to the experiment page from the dropdown.