Peritz' F test: basic program of a robust multiple comparison test for statistical analysis of all differences among group means.

Peritz' F test has previously been found to be the most robust statistical multiple comparison test able to hold all comparisons among group means to a given experimentwise error rate. A BASIC program which will perform this test quickly on a desk-top microcomputer, needing fewer than 11 kbytes of RAM memory, is presented. The program is run in the author's laboratory using an inexpensive VIC-20 computer.