THE ORDERED-HETEROGENEITY FAMILY OF TESTS

A new testing procedure is described concerning ordered alternative hy potheses when three or more populations are categorized by class. The test is specifically designed for use in complex testing applications frequently found in biological research where the isotonic regression and Jonckheere-Terpstra test cannot readily be applied. The test has b oth parametric and nonparametric applications. Significance tables for the test are provided for both large and small sample sizes, and a po wer analysis relative to isotonic regression is described for the case of the one-way layout.