What is the preparatory test for SAT called?

There isn't one single, officially named "preparatory test" for the SAT. Students often use practice tests from various sources to prepare. These practice tests are often found in:

* Official SAT Study Guides: These books published by the College Board (the organization that creates the SAT) contain full-length practice tests that are the closest you can get to the real thing.

* Khan Academy: The College Board partners with Khan Academy, offering free SAT prep materials including practice tests.

* Other Prep Books and Websites: Many companies and websites offer SAT prep materials, including practice tests, but their quality and accuracy vary.

So, the answer is there isn't a specific named test, but many *practice tests* serve as preparation.