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Sample size for McNemar test - comparison of paired proportions

Input
Type I error - Alpha: 
Type II error - Beta:
Proportion (%) of total expected to shift from to Negative: 
Proportion (%) of total expected to shift from Negative to Positive: 
Result
Minimal required number of pairs:

For details, see the MedCalc manual: Sample size: McNemar test (paired proportions).

How to cite this page

  • MedCalc Software Ltd. Sample size calculator for McNemar test - comparison of paired proportions | MedCalc. https://www.medcalc.org/en/calc/sample-size-mcnemar-test.php (Version 23.6.1; accessed July 14, 2026)
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