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A/B Testing Pop-ups: How to Make Your Pop-Ups a Lot More Effective

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Guardrail metrics provide what Spitzer (2007) calls the “capacity to instigate informed action.” This will persuade people to join up for your newsletter, which will contain helpful hints and links to fresh blog content. If we are testing the text within the CTA button, then we look at the CTR% of the CTA. Probably not.

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The No Jargon Step by Step Guide to (Thoroughly) Understanding A/B Testing Metrics

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Guardrail metrics provide what Spitzer (2007) calls the “capacity to instigate informed action.” We begin with what we believe is the most important guardrail metric every experiment should have: The Sample Ratio, then follow-up with other guardrail metrics and organizational guardrail metrics. Metrics are often client-driven.