Test It Logo

Sample Size

The number of users included in each group of your test.

Sample size refers to the number of users or sessions included in the control group and each variation group during an A/B test. Having a sufficiently large sample size is crucial for achieving statistically significant results and ensuring the test outcomes are reliable and not just due to random chance. Use a calculator to determine the needed size!

Ready to Run Better Tests?

Put this knowledge into practice! Test It is the easiest and most affordable way to run A/B tests. Get started for free.

Try Test It Now