analytics-dictionary / tool overview / experimentation

Statsig

Statsig is a product experimentation platform with feature gates, experiments and analytics.

Written by Reflective Data experts · updated Oct 5, 2026

It offers SDKs, a metrics catalogue and automated analysis, with options for warehouse-native use.

Teams use it to ship features safely and measure their impact in one place.

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We set up, audit and run experimentation programs on any tool. Statsig services → · Audits

An A/A test splits users into two groups that get the same experience, to check that…

Sequential testing uses statistical methods that remain valid when you check results repeatedly while a test…

Statistics is the science of collecting, analysing and interpreting data, and quantifying uncertainty.

Server-side testing runs experiments in your backend, so users get the assigned variant before the page…

A type I error is a false positive, declaring an effect that is not real; a…

CUPED reduces variance in experiments by using pre-experiment data about each user, so tests reach conclusions…