Wilcoxon Signed-Rank Test Calculator

Calculate a two-sided Wilcoxon signed-rank statistic for matched samples.

Description

Calculate the two-sided Wilcoxon signed-rank statistic with average ranks for ties and zero differences removed.

Wilcoxon Signed-Rank Test Calculator is a focused tool for the following task. Calculate the two-sided Wilcoxon signed-rank statistic with average ranks for ties and zero differences removed. It reports W statistic from the values you provide rather than inventing measurements, coefficients, or professional judgment that are not part of the input.

When to use Wilcoxon Signed-Rank Test

Use this calculation to reproduce a defined quantitative method when the observations, units, sampling process, and assumptions match the method shown here.

First matched sample
Required list.
Second matched sample
Required list.

The cited overview of Wilcoxon signed-rank test supplies background for the terminology and domain context used by this tool.1

How Wilcoxon Signed-Rank Test works

Calculate the two-sided Wilcoxon signed-rank statistic with average ranks for ties and zero differences removed. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

W statistic
Returned number.

Limitations and assumptions

  • A numerical result does not by itself establish data quality, causation, representativeness, independence, distributional fit, or practical significance.
  • Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.

Alternative or Complementary approaches

Inspect the underlying data, visualize its distribution, report uncertainty and sample size, and compare the result with a robust or domain-specific method where appropriate.

References

  1. Wilcoxon signed-rank test — Wikipedia contributors

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