How to use
- Paste paired before and after values in the same row order.
- Choose whether you want to read after > before, after < before, or a two-sided shift.
- Read the exact p-value together with positive, negative, and zero-difference pair counts.
Wave 37 paired exact entry
Read only the direction of paired change
The share URL stores only the selected tail and decimal places.
How to choose between nearby pages
Use Wilcoxon signed-rank when paired rank size should matter, McNemar test when the paired outcome is binary in a 2x2 table, and binomial test when there is only one success count against one null proportion. Use this page when paired direction alone is the question.
FAQ
What does this page calculate?
It runs an exact sign test on paired before/after values, counting positive versus negative paired differences while ignoring zero differences.
When should I use the sign test instead of Wilcoxon signed-rank?
Use the sign test when only the direction of paired change matters and you do not want ranks or magnitudes to influence the result. Use Wilcoxon when direction and rank size should both matter.
Why are zero differences removed?
The sign test compares positive versus negative paired directions. Pairs with zero change do not support either direction, so they are removed before the exact binomial count is calculated.
Does the share URL include my paired values?
No. The share URL stores only light settings such as the alternative and decimal places. Your paired values stay in your browser.