This report of the California State Postsecondary Education Commission discusses standardized testing at the higher education level in California and is comprised of three parts. Part 1 describes six tests related to undergraduate admission, placement, and financial assistance. Part 2 describes five tests required by graduate programs and professional schools for admission. For each of these tests, the report summarizes what the test is designed to measure, how it is formatted, and how it is used in California. The report also summarizes national and California participation and performance data by sex and major ethnic group for the last 5 years, to the extent this information is provided by the test sponsors. In addition to mean (average) test performance by group, the report reviews available data on the test's predictive validity and standard error of measurement that have implications for appropriate test use. Part 3 reviews the relations between standardized testing and college admission in California and the role testing companies have, or can have, in expanding access for Hispanic, Black, and American Indian students. The report concludes by identifying three areas in which further efforts are needed in order for the Commission to respond more completely to the authorizing statute. Appendices contain State Senate Bill 1416 and test sponsor materials. Contains 43 references. (GLR)