Glossary
The eight words that appear on every Luria screen, in plain language, with the exact rule behind each one.
Every term below appears somewhere in your dashboard. Each one has a hard rule behind it, not a vibe.
Control
The version of your page that never changes. Every test keeps one. It runs at the same time, on the same traffic, as the variant, which is the only reason the difference between them can be blamed on the change.
The control never drops below 10% of traffic, even when the variant is winning heavily.
Variant
The changed version. Luria writes it as small text and style patches on the blocks you allow, never on checkout, never on legal text, never on prices without your approval.
Sticky assignment
A visitor is put on one side of the test and stays there. Same person, same side, for the life of the test. Without it a visitor could see the control on Monday and the variant on Tuesday, and the result would mean nothing.
Exposure
One session actually seeing one arm. Sessions that never reached the tested page are not exposures and are not counted.
Attributed conversion
An order that arrived carrying Luria's attributes, meaning Luria can tie it to the arm the buyer saw. Organic orders that never touched a test are real orders, but they are not attributed, and they never count against your free allowance.
One order counts once. On Shopify the order id is the dedupe key, so the pixel and the order webhook can both report the same sale without doubling it.
P(beat control)
The probability that the variant is genuinely better than the control, given the counts so far. Not a lift figure, and not a guarantee.
| Reading | What happens |
|---|---|
| Above 95% with 200+ sessions per arm | The variant is promoted |
| Below 5% with 200+ sessions per arm | The variant is killed |
| Anything between | The test keeps running |
Lift
The gap between the two arms. Your dashboard labels it honestly: measured once your four-week baseline is frozen, and estimate before that, because there is not yet enough history behind it.
Promotion
The moment a variant clears both bars and becomes what everyone sees. It stays reversible: every change is listed with a rollback, and the kill switch stops serving within about 60 seconds.