The Diagnostic Reading Tests were designed to assess the reading skills of college students enrolled in reading centers. To assess the reliability of the Diagnostic Reading Tests, Survey Section, Form E (DRTE), a study was conducted with university freshmen as subjects. The DRTE was administered to 31 students in an Educational Opportunity Program (EOP), to 122 students admitted to the Eastman School of Music of the University (ESM), and to 229 students who were regularly admitted to attend the Summer Orientation Program (SOP) session. The DRTE was successful in differentiating the three groups--the SOP group had the highest mean scores, as was expected; the EOP group had the lowest, with the ESM group somewhere in the middle. Reliability estimates of the DRTE using the Kuder-Richardson Formulas 20 and 21 were found to be satisfactory and did not differ from those published by the test authors. The fact that 16 of the test items did not contribute significantly to the test score seemed to indicate that a revision of the test is needed. Tables and references are included. (DH)