A/B Testing
A/B testing compares two or more variants to estimate which performs better against a defined metric.
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Also A/B TestMarketing Refs Editorial, reviewed by Marketing Refs Review DeskCRO & Optimization2 sources
Decision model
A/B test = control + variant + sample + success metricHow it works
A/B tests reduce uncertainty by measuring behavior rather than relying only on opinion.
Key takeaways
- Use A/B Testing when the decision depends on conversion friction, experimentation and offer clarity.
- Pair A/B Testing with related concepts before changing strategy, budget or execution.
Where it is used
- CRO & Optimization planning
- Campaign review
- Team alignment
Used by Marketing teams · Growth teams · Students
Examples
- A cro & optimization team uses A/B Testing to turn a vague marketing discussion into a specific decision with owners and evidence.
- A manager links A/B Testing to adjacent concepts before changing a campaign, journey, budget or operating process.
Common mistakes
- Using A/B Testing as jargon without tying it to a decision, owner or measurement signal.
- Treating A/B Testing as isolated from adjacent concepts that change how it should be applied.
Questions
- What is A/B Testing?
- A/B testing compares two or more variants to estimate which performs better against a defined metric.
- When should marketers use A/B Testing?
- A/B Testing should be used when it clarifies a marketing decision, owner, workflow or measurement question.
- What is a practical example of A/B Testing?
- A cro & optimization team uses A/B Testing to turn a vague marketing discussion into a specific decision with owners and evidence.
Sources
- tier 1American Marketing Association definition of marketingofficial body · cited 2026-08-08
- tier 1Universal Marketing Dictionaryofficial body · cited 2026-08-08
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