Growth hacking viral marketing experimentation framework

Implement growth hacking methodologies with viral marketing tactics and systematic experimentation for rapid scaling. Growth hacking framework: 1. AARRR funnel: Acquisition, Activation, Retention, Referral, Revenue optimization for each stage. 2. North Star Metric: single success metric (daily active users, revenue, engagement), team alignment. 3. ICE prioritization: Impact, Confidence, Ease scoring for experiment selection and resource allocation. Viral mechanics: 1. K-factor optimization: viral coefficient >1 for exponential growth, sharing incentives, network effects. 2. Referral programs: friend rewards, double-sided incentives, social sharing, gamification elements. 3. Word-of-mouth amplification: remarkable experiences, social proof, user-generated content, community building. Experimentation process: 1. Hypothesis formation: data-driven assumptions, specific predictions, measurable outcomes, success criteria. 2. Rapid testing: MVP approach, 80/20 rule, quick iterations, fail-fast mentality, learning prioritization. 3. Statistical rigor: sample size calculation, confidence levels, significance testing, bias prevention. Growth channels: 1. Content marketing: viral content, shareability factors, distribution optimization, SEO integration. 2. Social media: platform algorithms, hashtag strategies, influencer partnerships, user-generated content. 3. Product-led growth: freemium models, trial experiences, onboarding optimization, feature virality. Advanced tactics: 1. Behavioral psychology: scarcity, social proof, reciprocity, commitment consistency, authority leverage. 2. Network effects: platform value increase with users, community building, marketplace dynamics. 3. Data-driven optimization: cohort analysis, funnel optimization, lifetime value maximization, churn reduction. Measurement: experiment velocity, win rate, impact magnitude, learning rate, growth coefficient tracking for continuous optimization and scaling validation.