The thing is—that’s the wrong question. The real focus should be on whether the test is worth running and if you’re likely to get useful, measurable results.
Why The Timeline Question Misses The Point
Here’s why asking about timelines might lead you down the wrong path:
So, the next time someone asks, “How long should I run a test?”, remember that starting with a timeline isn’t the best guide. It’s all about setting the test parameters, knowing the required sample size, and running the test for the time required to meet the sample size.
DO NOT…I repeat…DO NOT run tests without a stopping point. Set an end date and stick to it.
Free Tool: Testing Significance Calculator
It helps you determine whether your test results are statistically significant, allowing you to decide whether it’s worth running a test or if you should pivot. Use it to validate your current tests or plan for future ones.
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