A comparison of the Quade and Friedman tests to the unbalanced two-way analysis of variance with biomedical data.

The analysis of unbalanced two-way analysis of variance model using a parametric ANOVA (F-test) is compared to two nonparametric tests (extensions of the Quade and Friedman tests). Results from a Turbo Pascal program written for MS-DOS microcomputers are given for a biomedical experiment using ultrasound data to calibrate heart valve measurements.