The Utah state legislature established the Early Intervention Software Program ("EISP") to aid in the development of Utah students' literacy skills through computer-based, adaptive reading software programs designed to meet students' unique learning needs. The Evaluation and Training Institute (ETI) conducts an annual evaluation of how the reading software programs were used and how students' participation is associated with literacy achievement, including the combined impact of all the software programs and a comparison of the relative effects on literacy achievement of each of the software providers ("vendors"). This report includes findings from the 2016-2017 academic year, the EISP's fourth year of implementation. These findings are intended to help the Utah State Board of Education (USBE) and Local Education Agencies (LEAs) understand how well the program is working, identify potential areas of improvement in program implementation, and make informed decisions about the future direction of the program.