Appendix E: Psychological Design Patterns
🧠 What Are Psychological Design Patterns?
📋 Pattern Format
🎯 Pattern Categories
🚀 Acquisition Patterns
✨ Activation Patterns
🔄 Engagement Patterns
💎 Retention Patterns
💰 Monetization Patterns
🌐 Viral Growth Patterns
🚀 Acquisition Patterns
Pattern 1: Social Proof Cascade
Psychology
Problem
Solution
Implementation Pattern
SaaS Examples
Expected Metrics
Implementation Code Pattern
⚠️ Warnings
Pattern 2: Authority Transfer
Psychology
Problem
Solution
Implementation Examples
SaaS Examples
Expected Metrics
⚠️ Warnings
Pattern 3: Scarcity Timer
Psychology
Problem
Solution
Visual Implementation
SaaS Examples
Expected Metrics
Implementation Guidelines
⚠️ Warnings
✨ Activation Patterns
Pattern 4: Success Spiral
Psychology
Problem
Solution
Success Spiral Design
SaaS Examples
Expected Metrics
Implementation Framework
⚠️ Warnings
Pattern 5: Progress Momentum
Psychology
Problem
Solution
Progress Psychology
SaaS Examples
Expected Metrics
Implementation Example
⚠️ Warnings
🔄 Engagement Patterns
Pattern 6: Variable Reward Schedule
Psychology
Problem
Solution
Variable Reward Loop
SaaS Examples
Expected Metrics
Implementation Strategies
⚠️ Warnings
Pattern 7: Social Facilitation
Psychology
Problem
Solution
Social Facilitation Design
SaaS Examples
Expected Metrics
Implementation Example
⚠️ Warnings
💎 Retention Patterns
Pattern 8: Sunk Cost Momentum
Psychology
Problem
Solution
Investment Accumulation
SaaS Examples
Expected Metrics
Ethical Investment Design
⚠️ Warnings
Pattern 9: Identity Reinforcement
Psychology
Problem
Solution
Identity Formation Journey
SaaS Examples
Expected Metrics
Implementation Strategy
⚠️ Warnings
💰 Monetization Patterns
Pattern 10: Value Ladder
Psychology
Problem
Solution
Value Ladder Progression
SaaS Examples
Expected Metrics
Pricing Psychology Implementation
⚠️ Warnings
🌐 Viral Growth Patterns
Pattern 11: Collaborative Necessity
Psychology
Problem
Solution
Viral Collaboration Loop
SaaS Examples
Expected Metrics
Implementation Framework
⚠️ Warnings
📊 Pattern Combination Strategies
The STACK Method
Pattern Interaction Matrix
Primary Goal
Supporting Patterns
Reinforcing Patterns
Avoid Mixing
🎯 Implementation Guidelines
Pattern Selection Framework
Step 1: Identify Your Primary Challenge
Step 2: Choose Core Pattern
Step 3: Add Supporting Patterns
Step 4: Measure and Iterate
Ethical Implementation Checklist
Testing Framework
Quantitative Metrics
Qualitative Assessment
🔮 Advanced Pattern Applications
Contextual Pattern Adaptation
B2B vs B2C Psychology
Cultural Considerations
User Experience Level
Pattern Evolution Over Time
Early Stage (0-1000 users)
Growth Stage (1000-100,000 users)
Scale Stage (100,000+ users)
📚 Pattern Research & Validation
Academic Foundations
Ongoing Research
🚀 Quick Reference Guide
Top 10 Patterns by Use Case
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⚡ Implementation Roadmap
Week 1-2: Foundation
Week 3-4: Implementation
Week 5-8: Optimization
Month 3+: Advanced Patterns
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