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Sample Ratio Mismatch (SRM) Checker for A/B Testing

Check traffic distribution balance in A/B tests. Online tool for fast and accurate SRM diagnostics. Just enter the numbers and get the result.

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Sample Ratio Mismatch (SRM) Calculator for A/B Testing

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The SRM calculator helps detect issues in A/B testing experiments by analyzing traffic distribution between test groups. It uses chi-squared statistics to identify statistical anomalies that may affect test validity.

This tool is essential for data specialists, analysts, and marketers who need to ensure the integrity of their A/B tests. It helps identify when traffic distribution deviates from expected proportions.

The calculator provides clear interpretation of results with color-coded status indicators, making it easy to understand when intervention is needed to maintain test quality.

Frequently Asked Questions (FAQ)

Sample Ratio Mismatch (SRM) is a statistical error that occurs when samples in A/B tests do not match each other. This can lead to inaccurate results and incorrect conclusions.

The calculator uses statistical methods to calculate SRM based on sample size, baseline conversion, and significance level. It shows when SRM may be critical.

Use the calculator to compute SRM in A/B tests. Set the sample size, baseline conversion, and significance level, and the tool will show when SRM may be critical.

You can set the sample size, baseline conversion, significance level, and statistical power. All settings are applied in real time.

The Sample Ratio Mismatch (SRM) calculator is ideal for A/B tests with high observation costs, where saving resources is important. It's also useful for quickly obtaining results in marketing campaigns.
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Chi-Squared Statistical Analysis

Uses chi-squared statistics to calculate the degree of mismatch between expected and actual traffic distribution in A/B tests.

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Real-Time SRM Detection

Instantly detects when traffic distribution deviates from planned proportions, helping maintain test integrity.

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Clear Status Indicators

Provides color-coded status indicators (normal, warning, critical) for quick assessment of distribution issues.