Proof the Plain Numbers Method Works | Plain Numbers

See the evidence for how the Plain Numbers Method improves customer understanding, across utilities, financial services and the public sector.

Real case studies, trial results and reports from organisations who’ve applied the Plain Numbers Method.

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Tested in Randomised Controlled Trials

With the support of the Bank of England and Kantar Public, Plain Numbers ran a series of Randomised Controlled Trials to test how effective the Plain Numbers Method could be. People were tested on whether they thought they understood the communication they had received, and whether they could demonstrate real understanding.

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Featured case studies and reports

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Better Understanding, Better Outcomes

Organisations across insurance, retail banking and building societies, credit and utilities share how the Plain Numbers Method and partnership services have been adopted and used to improve customer understanding.

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Double the understanding

Cadent wanted clearer payment documents for new connection customers. We ran a Randomised Controlled Trial with over 1,000 UK participants. Comprehension almost tripled when the Plain Numbers Method was applied.

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Original Research

Five companies. 5,000 participants. One clear finding

Supported by the Bank of England and Kantar Public, we ran Randomised Controlled Trials across five major organisations. In every case, the Plain Numbers version significantly outperformed the original on comprehension.

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People thought they understood credit costs. Most didn't

We partnered with ClearScore and tested three ways of presenting credit information with over 2,000 participants. The Plain Numbers version doubled comprehension within existing regulations. Without APR and representative example requirements, comprehension nearly tripled.

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