The problem of SAT is not that it can be prep'd, but it is too easy to be differentiating, and too simple so people can game it.

By the way, isn't depending on SAT for years and everyone bitching about SAT is a gross failure of our education system? Take any serious test, be it STEM competitions, JEE, or NCEE, multiple-choice questions are the easiest part. The differentiating questions are all kinds of word problems. Yet the US can't afford such test, but countries like India and China can.

And why do people in the US, the most developed and the richest country in the world, complain that people can prep the SAT. It's truly a shame. In countries like China, it is public schools that produce the best students. It is the public schools that set high standards for the country. It is the public schools that come up with amazing text books and problem sets. Tutoring in China is joke. Classes offered by public schools are legendary. Something is wrong in the US.