Information is presented on standardized tests used at California undergraduate and graduate/professional schools for admission and placement purposes. The following four tests used at the undergraduate level are described: the Preliminary Scholastic Aptitude Test/National Merit Scholarship Qualifying Test, the Scholastic Aptitude and College Board Achievement Tests, the American College Test, and the Test of English as a Foreign Language. The following five tests used at the graduate level are also summarized: the Graduate Record Examinations, the Graduate Management Admissions Test, the Miller Analogies Test, the Law School Admission Test, and the Medical College Admission Test. The test descriptions include information on test reliability, measurement errors, the numbers of students taking the test, the ethnic background of test-takers, and mean scores of test-takers. The text of California Senate Bill No. 1758 on standardized tests in postsecondary education is appended, along with extensive information on each test including: number of times the test was taken during the testing year; the number of students who took the test once, twice, and more than twice; fees received from test-takers; and expenses attributable to the test, by type of expense. Twenty-five display tables are included in the text. (SW)