Cialdini's Six Principles of Persuasion Cialdini 六大說服原則
Released已發布Apply Cialdini's six principles of persuasion — Reciprocity, Commitment/Consistency, Social Proof, Liking, Authority, and Scarcity — to analyze or design influence strategies. Use this skill when the user needs to make messaging more persuasive, analyze why a campaign works or doesn't, design sales or marketing copy, or understand social influence tactics — even if they say 'how do we convince people', 'why is this ad effective', or 'make this more persuasive'.
社會科學技能：Cialdini's Six Principles of Persuasion 分析與應用。
Overview概述
Robert Cialdini identified six universal principles that drive human compliance. They work because they're cognitive shortcuts — people rely on them to make quick decisions. Understanding these principles helps design more persuasive communications AND recognize when they're being used on you.
Framework 框架
IRON LAW: Ethical Influence, Not Manipulation
These principles are tools. Using them to help people make decisions aligned
with their interests = ethical influence. Using them to exploit people against
their interests = manipulation. The test: would the person feel grateful or
deceived if they knew the technique was being used?
The Six Principles
1. Reciprocity — People feel obligated to return favors
- Give something of value first (free sample, useful content, personal favor)
- The gift should be meaningful, unexpected, and personalized
- Application: Free trials, content marketing, "lead magnets"
2. Commitment & Consistency — People want to act consistently with prior commitments
- Start with small asks, then escalate (foot-in-the-door)
- Get public or written commitments
- Application: Free signup → paid conversion, loyalty programs, goal-setting
3. Social Proof — People follow what others do, especially similar others
- Show numbers ("10,000+ customers"), testimonials, reviews
- Most effective when the "others" are similar to the target audience
- Application: Reviews, case studies, "most popular" labels, waitlists
4. Liking — People say yes to those they like
- Similarity ("we're like you"), compliments, cooperation, attractiveness
- Familiarity through repeated exposure
- Application: Brand personality, influencer marketing, personalization
5. Authority — People defer to credible experts
- Credentials, titles, uniforms, endorsements from recognized authorities
- Must be relevant authority (a doctor endorsing medicine, not a doctor endorsing cars)
- Application: Expert endorsements, certifications, "as featured in" logos
6. Scarcity — People value what's limited or disappearing
- Limited quantity ("only 3 left"), limited time ("offer ends tonight"), exclusive access
- Loss framing is stronger than gain framing
- Application: Flash sales, limited editions, early access programs
Analysis Steps
- Identify the persuasion context: Who is persuading whom? What's the desired action?
- Audit current messaging: Which principles are already in use? Which are missing?
- Recommend additions: Which principles would be most effective for this audience and context?
- Check ethics: Does each application pass the "grateful or deceived?" test?
Output Format輸出格式
# Persuasion Analysis: {Context}
Examples範例
Correct Application
Scenario: Improving conversion on a Taiwanese SaaS landing page
| Principle | Current | Recommendation |
|---|---|---|
| Reciprocity | ✗ | Offer a free ROI calculator tool before asking for signup |
| Social Proof | Weak ("trusted by companies") | Add specific logos + "2,347 teams use us" + testimonial with photo and company |
| Authority | ✗ | Add "Recommended by 資策會" or relevant industry certification |
| Scarcity | ✗ | "Early adopter pricing: NT$299/month (ends March 31)" |
All pass ethics check: free tool is genuinely useful, social proof is factual, authority is real certification, scarcity is a genuine time-limited offer ✓
Incorrect Application
- "Only 2 left in stock!" when there are actually 200 → Fake scarcity. The customer would feel deceived if they knew. Violates Iron Law: ethical influence only.
Gotchas注意事項
- Stacking principles amplifies effect: Using 3-4 principles together is more effective than any single one. A landing page with social proof + authority + scarcity outperforms one with just social proof.
- Cultural calibration: Authority carries more weight in hierarchical cultures (Taiwan, Japan, Korea). Social proof is powerful in collectivist cultures. Individualist cultures may respond more to scarcity and uniqueness.
- Diminishing returns: Overusing scarcity ("limited time!" on every email) erodes trust. Use each principle authentically and sparingly.
- B2B vs B2C: B2B decisions involve multiple stakeholders. Authority and social proof (case studies) are more effective than scarcity or liking.
- Principle 7 — Unity (Cialdini's 2016 addition): Shared identity ("we are family", "fellow alumni") creates the strongest influence. Consider for community-based contexts.
References參考資料
- For dark patterns and manipulation detection, see
references/dark-patterns.md - For B2B-specific persuasion tactics, see
references/b2b-persuasion.md