SEARCH Articles Figures Tables Cochran 1 (well Cochran s statistic Cochran test Cochran test Terms Cochran, William Cochran-Armitage test Cochran-Mantel-Haenszel test Cochrane Cochrane Cochrane Chemistry Cochrane Collaboration Cochrane Collaboration, The Cochrane Database of Systematic Reviews Cochrane Library Cochrane meta-analysis Cochrane methods group Cochrane reviews Cochrane, Thomas Cochrane, William Cochrane-Orcutt Cochran’s Q test Cochran’s test Cochran’s test for equality of variances Meta-analyses Cochrane Collaboration Thad Cochran Southern Horticultural Thad Cochran Southern Horticultural Laboratory