Final answer:
SAT-I is a general college readiness exam testing verbal and mathematical skills, while SAT-II tests (discontinued as of 2021) assessed knowledge in specific subjects.
Step-by-step explanation:
The main difference between the SAT-I (now simply called SAT) and SAT-II (which were also known as SAT Subject Tests before their discontinuation in 2021) is that the SAT-I is a general test that assesses a student's readiness for college, covering verbal and mathematical skills. In contrast, the SAT-II tests were designed to measure knowledge in specific subjects, like Chemistry, Math, or History, allowing students to demonstrate proficiency in particular areas important for their intended field of study in college.
The SAT-I tests both verbal and mathematical skills, whereas the SAT-II tested understanding and ability to apply knowledge in specific subject areas. As of 2021, the College Board has discontinued SAT Subject Tests in the United States.
It's also worth noting that both SAT-I and SAT-II were targeted towards high school students aiming for college admission, not college students or students pursuing arts vs. science specifically; nor was the SAT-II a test to improve SAT-I scores.