NEW RESEARCH79% of shoppers say the same chain is noticeably better or worse store to store.Get the full report, free →

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For test-and-learn teams

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.

The designed-test way
  • Design the test
  • Pick test and control stores
  • Hold out stores that sit out the move
  • Wait out the run — quarters, not weeks
The Board
  • 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.