2 min read
A/B testing vs A/B/n: when to use each
Testing more than two versions at once is tempting, but every extra variant splits your traffic. Learn when A/B/n pays off and when classic A/B wins.
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Ideas to make every visit convert better
Practical guides on experimentation, personalization, statistics and AI agents, written by the team that builds Bixlow and runs CRO programs every week.
Latest articles
2 min read
Mistakes that invalidate your A/B tests (and how to avoid them)
A poorly run A/B test is worse than no test at all: it gives you false confidence. Here are the most common mistakes that invalidate results and how to prevent them.
2 min read
Sample size: how to know if your test is reliable
Sample size quietly ruins more experiments than any other factor. Learn the three variables behind it and how to know if your A/B test can actually reach a conclusion.
2 min read
How Long Should You Run an A/B Test
Stop too early and you crown false winners; run too long and you waste traffic. Learn how to set the right A/B test duration before you launch.
2 min read
Statistical Significance Explained for Marketers
P-value, confidence level and false winners explained in plain English. Learn to read what your A/B testing tool tells you and stop shipping fake wins.
2 min read
How to Write a Good Test Hypothesis
A clear, testable hypothesis is the difference between an experiment that teaches you something and one that just burns traffic. Here's how to write them.
2 min read
A/B testing for beginners: concepts you need to master
Learn the core A/B testing vocabulary: control, variant, hypothesis, significance and metrics, so you can launch reliable experiments from day one.
2 min read
How to prioritize which experiments to launch first
More ideas than you can run at once? Learn a simple framework to rank your experiment backlog by impact, confidence and effort, and start with what pays off most.
2 min read
The experimentation layer: what it is and why it doesn't touch your backend
When marketing wants to ship changes without going through dev, engineering pictures chaos in production. A separate experimentation layer makes that fear unfounded.
2 min read
Five high-impact changes you can launch today without devs
Five proven conversion levers you can ship today with no code and no deploy: hero headline, CTA, social proof, exit offer and traffic-source personalization.
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