Скачать или смотреть Why 10/10/80 Tests Are Bad Science (and 50/50 Works Better) 📊

The 10/10/80 split test looks efficient. It feels clever.
But from a testing perspective? It’s rubbish science .

In this From the Hammock episode, Kath Pay explains why:
– 📉 10% isn’t enough data to draw meaningful conclusions
– ⏱ Measuring “winners” after an hour is unreliable
– 🎰 You end up gambling on guesswork, not learning

Instead, Kath advocates for 50/50 testing:
– Half the audience gets version A, half gets version B
– You sacrifice a single campaign’s “perfect send”
– But you gain insight you can apply to every campaign that follows

👉 Short-term wins fade. Learning compounds.
If you want testing that actually transforms your email programme, go 50/50.

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