
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 and the team at SmartMetrics did a fantastic job for us. We needed a complex cross-domain and cross-platform analytics and e-commerce tracking implementation, and they delivered on time and on budget. Great communication, too!”
Adam Sieminski
“Wow! Blown away by their expertise and speed as well as communication. We had a botched Google tagging job that needed to be fixed and they jumped right in and had it done in the same day. I'm recommending them to everyone I know needing help with the Google suite of business tools.”
Jennifer Roberge
“Provided a much needed service at a great price & is always great to work with. Extremely knowledgable & capable! Thank you!”
Dj Haer Jr
DJs Junk Removal
Work with Tomas
Founder, SmartMetrics
20 years in marketing, CRO, CRM, and analytics, now with AI systems layered on top.


Get In Touch
You work with me directly, from scope to delivery.
Schedule a 15min Call