Everything Test & Learn proves — no test design, no held-out stores, weeks not quarters.
Holdout testing is how the big chains prove it. You don't have to.
The read a holdout gives you — without holding out a single store.
Every move on the board was measured at matched stores that already ran it, transported to your store's fingerprint, and priced in dollars with a confidence grade. Pull a lever and the board calculates the read — then settles its own estimate, inside the range or not, on the record.
The data already ran the experiment; we just read it.
- Design the test
- Pick test and control stores
- Hold out stores that sit out the move
- Wait out the run — quarters, not weeks
- Matched-store reads on POS history that already exists
- Transported to your store's fingerprint
- No store sits out
- Verdicts in weeks, with the date on the board
The tools priced in experiments — Mastercard Test & Learn and MarketDial — answer this question by designing one. We answer it by reading the runs that already happened.
All marks belong to their owners.