The sign test on a matched-pairs sample is similar to the Wilcoxon signed-rank test but applied to ordinal data.

Name: The sign test on a matched-pairs sample is similar to the Wilcoxon signed-rank test but applied to ordinal data.
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The sign test is indeed similar to the Wilcoxon signed-rank test, but it is usually applied to nominal or binary data, whereas the Wilcoxon signed-rank test is applied to ordinal data. However, both tests can be used for matched-pairs samples.

The Sign Test on a Matched-Pairs Sample Is Similar to the Wilcoxon