California law requires sponsors of standardized tests used for admission or placement purposes in higher education to report certain data annually. Data on each of the 10 batteries of standardized tests affected by the law in 1987-88 are reported, and mean test scores are displayed for students nationally and in California if those averages are available. Two sections present information about two categories of tests: (1) tests used for college admission, placement, and financial awards (Preliminary Scholastic Aptitude Test/National Merit Scholarship Qualifying Test; Scholastic Aptitude and College Board Achievement Tests, American College Test, Advanced Placement Examinations; and Test of English as a Foreign Language); and (2) tests used by graduate and professional schools (Graduate Record Examinations; Graduate Management Admission Test; Law School Admission Test, and Medical College Admission Test). Appended are: Senate Bill 1758 (1984) and test sponsor materials for the above-listed tests which comprise about two-thirds of the document. Contains 38 references. (SM)