The purpose of this report is to provide summary information regarding the evaluation of the Early Prevention of School Failure Project (EPSFP). Initially funded by the state of Illinois, the EPSFP encourages school districts to identify and remediate deficiencies in students which appear to be related to early school failure. Immediately following an introductory section establishing the history of the project and the purpose of the report, the second section of the report describes data gathering and analysis procedures. Summaries indicating units adopting and funding the EPSFP from 1971 to 1981 are provided in the third section. In the fourth and fifth sections, respectively, results for the 1978-1981 and the 1975-1979 projects are reported. Specific attention is given to relationships between student gains and variables such as funding type, amount of specialist/teacher help, and district reactions to EPSFP. Relationships between student gains and selected variables relevant to the 1975-1976 project are discussed in the sixth section, and the long-range effects of the project are reported in the seventh section. The eighth section provides information about the norms for and validity of the Preschool Language Scale. Forms used in evaluating the EPSFP are appended. (RH)