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Website experiment advice, discussion, and case studies from a team running 500 tests per month.
173 articles
Two analysts look at the same A/B test (Bayesian vs Frequentist). One says “not significant, p = 0.066, keep the control.” The other says “96.7% probability…
Read Article : Bayesian vs Frequentist A/B Testing: A Practical Guide With Real NumbersImplementing an A/B test correctly means locking the hypothesis, primary metric, sample size, and stop rule before you build; assigning traffic randomly and stickily; verifying tracking…
Read Article : How to Implement and Execute an A/B Test CorrectlyPrice A/b testing is the process of running controlled experiments to see how different price points impact customer behavior, sales volume, and overall revenue. Instead of…
Read Article : All About Price A/B Testing & ExperimentationWhat is multi-armed bandit testing? Multi-armed bandit (MAB) testing is an adaptive experimentation method that uses reinforcement learning algorithms to shift traffic toward better-performing variations while…
Read Article : Multi-Armed Bandit Testing: How It Works and When to Use ItMost conversion rate optimization advice assumes you have tens of thousands of visitors a month to run clean A/B tests, but that’s not reality for most…
Read Article : Low Traffic CRO: How to Improve Conversions When You Don’t Have Big NumbersWhat Is Sample Ratio Mismatch and How Does It Happen? Identification, Root Causes, Bayesian Vulnerability, and Remediation In digital experimentation and online controlled experiments (A/B testing),…
Read Article : Sample Ratio Mismatch (SRM) in A/B TestingThe right length for an A/B test is however long it takes to collect the sample size your statistics require, not a fixed number of days.…
Read Article : How Long Should You Run an A/B Test? Sample Size, Significance & DurationThe gap between brands that grow steadily and brands that plateau is rarely the tools they use. It is how they use them. High-growth ecommerce teams…
Read Article : Tactical optimization and building a continuous CRO program for consistent growthIntroduction The acquisition of VWO by AB Tasty is one of the biggest developments in the experimentation and conversion rate optimization (CRO) industry in recent years.…
Read Article : AB Tasty and VWO Merger: What It Means for Existing CustomersMany businesses hesitate to invest in website improvements for one simple reason: they don’t want to pay for work that doesn’t produce measurable results. Traditional agencies…
Read Article : Why More Businesses Are Looking for Performance-Based Shopify Growth Partners Instead of Traditional AgenciesMost A/B testing mistakes happen after the experiment ends, not during it. Misreading results, trusting corrupted data, or declaring a winner too early are the errors…
Read Article : How to read A/B test results as a beginnerMost Shopify tutorials stop at launch. This one covers the full path: building your store, launching it correctly, and optimizing it for growth once it’s live.…
Read Article : Shopify tutorial for beginners 2026: build, launch, and optimize your first store
