Growth experiment setup

Growth experiments test new ideas to improve product growth in a structured way. For example, if users aren't inviting friends, you might test adding a "Share with Friends" button right after they complete a task. Each experiment focuses on one change to clearly measure if it works.

A good experiment starts with 3 parts: what you think will happen, how you'll measure success, and how you'll test it. For the share button example, your hypothesis might be "Adding a share button after task completion will increase referrals by 20%." You'd measure success by tracking how many users click the button and send invites.

Running the test means showing the new share button to half your users (Group A) while others don't see it (Group B). After a week or two, you compare the groups. If Group A sent 25% more invites than Group B, your hypothesis was right. If there's no difference, you might need to explore other changes.