Cochran Q Test Calculator
Test equality of proportions across related groups.
Cochran Q
-24.0000
df3
Cochran Q vs Treatments
Formula
## Cochran Q Test **Q = (k-1)[k*Sum(Cj^2) - T^2] / [kT - Sum(Ri^2)]** Extension of McNemar to 3+ related groups with binary outcomes.
Esempio Risolto
4 treatments, T=40.
- 01Q = 3*(2000-1600)/(160-210)
Domande Frequenti
When?
3+ matched groups with binary outcomes.
With 2 groups?
Equivalent to McNemar.
Post-hoc?
Pairwise McNemar with Bonferroni.
Impara