Optimize Marketing Growth with Data-Driven Experiments
Drives growth marketing through AARRR-framed experimentation: hypothesis testing, funnel optimization, CAC/LTV metrics, and channel strategy.
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Why it matters
Leverage a data-driven approach to accelerate marketing growth through rigorous experimentation and continuous optimization across key growth levers.
Outcomes
What it gets done
Develop and execute growth experiments using A/B and multivariate testing.
Optimize conversion rates across landing pages, sign-up flows, and activation funnels.
Analyze funnel performance, cohort behavior, and attribution models.
Implement strategies to increase traffic, improve conversion rates, and reduce churn.
Install
Add it to your toolbox
Run in your project directory:
curl -fsSL https://spark.entire.vc/get/vb-growth-marketing | bash Overview
Growth Marketing Expert
Applies the AARRR growth framework and a structured experimentation process to funnel optimization - hypothesis testing, prioritization, and growth metrics like CAC, LTV, and NRR across acquisition, activation, retention, revenue, and referral. Reach for this when running growth experiments, optimizing a conversion funnel, or calculating standard growth economics for a product with existing traffic.
What it does
This skill applies a data-driven, experimentation-based approach to marketing growth. It centers on the AARRR framework (Acquisition, Activation, Retention, Revenue, Referral - the "pirate metrics") and five growth levers: increasing traffic, improving conversion rate, increasing purchase frequency, increasing lifetime value, and reducing churn. Core competencies span growth experimentation (hypothesis development, A/B and multivariate testing, statistical significance, ICE/PIE-based experiment prioritization, and documenting learnings), funnel optimization (conversion rate optimization, landing page and sign-up flow optimization, activation improvement, retention mechanics), and analytics (funnel analytics, cohort analysis, attribution modeling, predictive analytics, customer segmentation).
The experimentation process follows six steps: analyze data for opportunities, form a testable hypothesis, prioritize by impact versus effort, run a controlled test, document and share what was learned, and scale winning variants. Key metrics are defined with explicit formulas - Conversion Rate (Conversions / Visitors), CAC (Marketing Spend / Customers), LTV (ARPU x Average Lifetime), Payback Period (CAC / Monthly Revenue), and NRR ((Start + Expansion - Churn) / Start).
When to use - and when NOT to
Use this skill when running growth experiments, optimizing a conversion funnel, or building a metrics-driven view of acquisition, activation, retention, revenue, and referral performance - especially when prioritizing which experiments to run next or calculating standard growth economics like CAC, LTV, and payback period.
It is not the right fit for early-stage product-market-fit discovery work with no existing traffic or funnel to optimize, or for pure brand-awareness campaigns where the AARRR/experimentation framework and CAC/LTV economics do not apply.
Inputs and outputs
Input: the product's current funnel data (traffic, conversion rates, retention/churn figures) and a growth hypothesis or question to investigate. Output: a prioritized experiment backlog (scored by impact/effort), designed A/B or multivariate tests with defined success criteria, funnel optimization recommendations across acquisition/activation/retention/revenue/referral stages, and calculated growth metrics (conversion rate, CAC, LTV, payback period, NRR) with channel-level breakdowns.
Integrations
Assumes familiarity with common growth tooling: analytics platforms (Amplitude, Mixpanel, GA4), experimentation platforms (Optimizely, VWO, LaunchDarkly), visualization tools (Tableau, Looker, Mode), attribution tools (Segment, Branch), and marketing automation platforms (Iterable, Customer.io). Growth channels considered include SEO/content, paid acquisition, product-led growth, viral/referral loops, partnerships, and community.
Who it's for
Growth marketers and product growth teams who need a structured, metrics-driven approach to experimentation and funnel optimization - particularly those prioritizing a testing roadmap and tracking standard growth economics across acquisition, activation, retention, revenue, and referral.
Source README
Growth Marketing Expert
Data-driven approach to marketing growth through experimentation and optimization.
Core Competencies
Growth Experimentation
- Hypothesis development
- A/B and multivariate testing
- Statistical significance
- Experiment prioritization (ICE/PIE)
- Learning documentation
Funnel Optimization
- Conversion rate optimization (CRO)
- Landing page optimization
- Sign-up flow optimization
- Activation improvement
- Retention mechanics
Analytics & Data
- Funnel analytics
- Cohort analysis
- Attribution modeling
- Predictive analytics
- Customer segmentation
The Growth Framework
AARRR (Pirate Metrics)
- Acquisition: How users find you
- Activation: First value experience
- Retention: Users come back
- Revenue: Monetization
- Referral: Users invite others
Growth Levers
- Increase traffic
- Improve conversion rate
- Increase frequency
- Increase lifetime value
- Reduce churn
Experimentation Process
- Analyze: Find opportunities in data
- Hypothesize: Form testable prediction
- Prioritize: Score by impact/effort
- Test: Run controlled experiment
- Learn: Document and share findings
- Scale: Roll out winners
Key Metrics
| Metric | Formula |
|---|---|
| Conversion Rate | Conversions / Visitors |
| CAC | Marketing Spend / Customers |
| LTV | ARPU × Avg Lifetime |
| Payback Period | CAC / Monthly Revenue |
| NRR | (Start + Expansion - Churn) / Start |
Tools Proficiency
- Analytics: Amplitude, Mixpanel, GA4
- Testing: Optimizely, VWO, LaunchDarkly
- Visualization: Tableau, Looker, Mode
- Attribution: Segment, Branch
- Automation: Iterable, Customer.io
Growth Channels
- SEO and content
- Paid acquisition
- Product-led growth
- Viral and referral
- Partnerships
- Community
FAQ
Common questions
Discussion
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