not testing on a large enough sample

What Are Some Best Practices for Testing in Email Marketing?

To avoid the pitfalls of testing on a small sample, consider the following best practices:
Use a Sample Size Calculator: Employ tools to determine the minimum sample size needed for your tests.
Segment Your Audience: If your audience is large, consider segmenting it into smaller, but still statistically significant groups to test different hypotheses.
Run Longer Tests: Instead of rushing your tests, allow them to run long enough to gather sufficient data.
Monitor Results Continuously: Keep an eye on your test results and adjust your sample size if necessary to ensure statistical significance.
Analyze and Iterate: Use the insights gained from your tests to refine your strategies and run subsequent tests with improved designs.

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