Information regarding the various publishers' priorities and data to support the supposition that the test publishers do differ in their priorities as reflected in their test characteristics, are presented. Evaluation ratings available for 1,600 published scales appropriate for grades 1, 3, 5, and 6 were from 39 publishers and distributers. A cluster analysis was performed by submitting the mean values for each publisher on each of the four MEAN categories: Measurement Validity; Examinee Appropriateness; Administrative Usability; and Normal Technical Excellence. In addition to the observed differences, three clusters of test publishers appeared. Cluster 1 publishers can be characterized as producing tests highly usable administratively and fairly good in terms of examinee appropriateness; Cluster II is like the first cluster, but its publishers produce tests with greater relevance and validity; and Cluster III, with only one publisher, has emphasized the examinee appropriateness of its tests to the neglect of other test qualities. (Author/LS)