Trust & Evidence
Before After Proof
Leverages contrast effect at full power. The brain measures transformation by the gap between states, making contrast compelling.
Before/after proof shows the same thing in two states — the struggling version and the transformed version — with evidence connecting them. The brain measures transformation by the gap between states, and the wider that gap, the more compelling the proof. This is contrast effect at maximum persuasive power.
Why This Works
The contrast effect is one of the brain's most reliable evaluation mechanisms. When two states are presented sequentially, the brain automatically calculates the difference and assigns value proportional to the gap. Before/after proof doesn't just show that something changed — it makes the viewer FEEL the magnitude of the change.
In Your Ads
Use before/after proof when you have documented evidence of transformation. Screenshots, dashboards, real numbers. "Before: this is what their ad dashboard looked like. After: same brand, 60 days later, same budget." The visual or numerical contrast should be dramatic and verifiable.
When This Breaks
When the before/after cherry-picks the worst and best moments, or when the circumstances aren't comparable, the proof feels staged.
Example
"January dashboard: [CPA], [ROAS], [N] winners out of [N] tested. March dashboard: [CPA], [ROAS], [N] out of [N]. Same team." Screenshot both. This beat is only as strong as the evidence behind it, so never fill these slots with an estimate.
When To Use It
Use Before After Proof when you need the viewer to believe what you're claiming. This technique provides the evidence that converts interest into trust. Claims without validation are just opinions.
Related Terms
Frequently Asked Questions
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