Fisher's exact test
Test exacto de Fisher
- Date
- 1935 · confidence high
- Place
- Harpenden, England, United Kingdom
- Credited to
- Ronald Fisher
- Field
- Knowledge & symbols
What it is
An exact statistical-significance test for small contingency tables, devised by Ronald Fisher at Rothamsted Experimental Station following the "lady tasting tea" experiment.
What it led to
- Rigorous statistical analysis of small samples
- Standard use in clinical trials and biomedical studies
- Basis for later exact tests (Fisher–Irwin test)
- Popularisation of randomised experimental design