Proof is not decoration. It should answer a specific doubt at the moment that doubt appears. Use demonstrations, customer stories, before-and-after processes, measured results, expert review, or transparent data. Explain the starting point, time period, sample, and conditions. Never present an exceptional outcome as typical or invent numbers to make a chart look persuasive.
What you will learn
- Match proof to claims
- Build a complete case example
- Avoid misleading result and scarcity claims
Core concepts
Evidence proximity: Place proof next to the claim it supports instead of saving all logos and testimonials for one slide.
Case context: A useful case includes starting situation, constraints, change, time period, result, and what cannot be inferred.
Claim discipline: Distinguish measured fact, customer report, estimate, example, and opinion. Label them accurately.
The practical method
Highlight every statement that affects trust or purchase.
Ask what a careful attendee would reasonably question.
Prefer direct demonstrations and measured evidence over vague praise.
State population, period, source, relevant conditions, and limits.
Delete guarantees, fabricated scarcity, and universal claims the evidence cannot support.
- 01
1. List material claims Highlight every statement that affects trust or purchase.
- 02
2. Name the doubt Ask what a careful attendee would reasonably question.
- 03
3. Choose the strongest available evidence Prefer direct demonstrations and measured evidence over vague praise.
- 04
4. Add context State population, period, source, relevant conditions, and limits.
- 05
5. Remove unsupported language Delete guarantees, fabricated scarcity, and universal claims the evidence cannot support.
Worked example
A slide says ‘cut onboarding time by 80%.’ The team has one customer whose setup dropped from ten days to two after standardizing data. The revised case names the customer type, old process, changes, measurement period, and dependencies. The presenter says it is one result, not a typical guarantee.
Build the template
Create this working artifact before moving to the next lesson:
- Claim inventory
- Doubt attached to each claim
- Evidence source
- Context and limitations
- Approved presentation language
Quality checklist
- Every major claim has evidence
- Cases include a starting point
- Charts use real data
- Limits are visible
- Urgency and scarcity are factual
Put the lesson into practice.
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