14/09/2026
3 behavioural science principles used by brands every day ↓
Credibility isn't a tone of voice. It's a set of decisions most brands make backwards.
1. Precision effect: 39.6% beats 40%, because round numbers read like guesses.
2. Pratfall effect: How Buckley's built a brand on tasting terrible.
3. Illusion of effort: Skyscanner's loading screen is theatre; visible effort equals perceived value.
💡 Marisa Crimlis-Brown on why 4.8 stars beats 5, since nobody pleases everyone.