How difficult are the SAT Subject Tests?
The data show that the material on the SAT Subject Tests and the time limits allocated to each test are appropriately difficult for the intended test-taking population. Each SAT Subject Test is designed to cover a wide range of knowledge, skills, and subject matter. Students should not expect to answer all the questions on the tests, as they are not expected to know and recognize everything covered in these tests. Typically, students answer only about half the questions correctly.