A/B Experiment Implementation
A/B test execution and UI/UX changes based on prioritized hypotheses. Covers test design, statistical setup, implementation in your testing tool, and analysis with documented winners and learnings.
What's included
- Hypothesis prioritization based on impact, confidence, and effort
- Test design with primary metric, guardrails, and sample size
- UI/UX changes built and QA'd across devices
- Implementation in your testing tool (PostHog, VWO, Optimizely, GA4 experiments)
- Statistical setup with proper traffic allocation and runtime
- Monitoring for sample ratio mismatch and data quality issues
- Results analysis with documented winners, losers, and learnings
- Shipping recommendations and follow-up test ideas
Why it matters
Most CRO programs stall because tests are poorly scoped, underpowered, or never properly analyzed. You get a steady pipeline of decision-grade experiments with a documented record of what works, what doesn't, and what to try next.
What clients say
“Thomas from SmartMetrics is not only easy to work with but is a wealth of knowledge. Thank you, Thomas!”
SmartWatt Marketing
“Outstanding work and support with Google Analytics, Advanced Reporting and Metrics, and PPC/SEM. We have an ongoing relationship with SmartMetrics and have never been disappointed. Will continue to work with Thomas and team!”
Brian Bigda
“Tomas is an exceptional analytics expert. He helped us migrate a client from Universal Analytics to GA4, including creating GTM tags/triggers/variables, ecommerce tracking setup, other event tracking setup, and even built out funnels. This client had a unique shopping/enrollment checkout process, but the migration and configuration was launched without any issues. Highly recommended for any analytics work.”
Brian Thomas Clark
What clients say
“Tomas at SmartMetrics has been fantastic to work with. He consistently delivers high-quality work quickly, communicates clearly and proactively, and makes even complex implementations feel straightforward.”
Gray Digital Group
5.0 on Google · All reviews“A huge difference to the business, and we know where the next dollar goes.”
Blitzy“We can scale spend now without guessing what is actually working.”
PermitFlow“Extremely knowledgable & capable!”
Dj Haer Jr
Work with Tomas
Founder, San Diego, CA
20 years in marketing, CRO, CRM, and analytics. Now building the systems AI runs on.
You work with me directly, from scope to delivery. No account managers.