An external evaluation of the impact of the Australian Studies in Student Performance (ASSP) Project on schools and systems is reported. The presented chapters follow in sequence the development of ASSP. The first chapter places the Australian Project in an international context and outlines the major questions dealt with in this evaluation. Chapter two traces the history of ASSP, while the next chapter maps expectations and opinions at the point of testing. In chapter four, technical issues relating to sampling and measurement of standards are addressed, while the next two chapters examine the administration and impact of the project in participating schools. Reactions to the results released in September 1981 are analyzed in chapter seven. The final chapter attempts to examine issues and decision possibilities with respect to national assessment in the light of the evidence collected. (PN)