Focusing on the Prereading Skills Program, this report furnishes the results and evaluations of a field test by fourteen teachers in ten Wisconsin and Illinois schools. A total of 23 kindergarten classes and 545 children were involved in the program, which teaches three visual skills and two sound skills related to the reading process and prerequisite for success in learning to read. The test design provided for objective evaluation of the program in terms of achievement of its internal objectives and for subjective evaluation in terms of usability and effectiveness of the program activities and materials. Test data revealed that the visual materials were effective, while the sound materials needed additional development to meet the standards of skill mastery. Contents of this report include the following: lists of tables and of figures; and introduction explaining the five prereading skills, the instructional program, and its expected outcome; a description of the field test; an analysis of the formal assessment data; a description of the instructional program; a conclusion; and an appendix. (JM)