title: Tests of homogeneity and trend with medians.
abstract: Algorithms for tests of homogeneity and trend with medians are presented. Under certain conditions the tests are more efficient than many standard nonparametric tests on one-way classification designs. Computationally the tests are very simple and could be performed by hand or with the help of a calculator. Application to certain types of data derived in cytogenetics is pointed out with an example.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations / Q000187:drug effects*; D006801:Humans; D009152:Mutagenicity Tests; D009153:Mutagens; D013223:Statistics as Topic
chemical_list: D009153:Mutagens