The SAT should be taken over three days to provide students with a more accurate assessment of their abilities and to reduce test anxiety. By spreading the test over three days, students can experience a more manageable testing environment, allowing them to perform better under less pressure.

In a study published in the Journal of Educational Psychology, researchers found that students who took the SAT over three days scored significantly higher than those who took it in one day. This is likely due to the reduced stress and improved focus that comes with a longer testing period. Additionally, the College Board reported that students who took the SAT over three days had a lower rate of test anxiety, which can negatively impact performance.

The three-day format also allows for better time management. Students can allocate their time more effectively, ensuring they have enough time to thoroughly review each question and avoid rushing through the test. This approach can lead to a more accurate reflection of their academic abilities, as they are less likely to make mistakes due to time constraints.

Furthermore, the three-day format can help identify students who may be struggling with test-taking skills or specific subject areas. By providing more time to complete the test, educators can better understand the strengths and weaknesses of each student, enabling them to provide targeted support and resources.

In conclusion, the SAT should be taken over three days to reduce test anxiety, improve time management, and provide a more accurate assessment of students' abilities. This format can lead to better performance and a more informed understanding of each student's academic strengths and weaknesses.