SAT = family income measurement

How to predict a student’s SAT score: Look at the parents’ tax return | Daniel Pink:

"Take a look at the chart below. On the horizontal axis is family income. On the vertical axis is the combined average SAT score for students from families in each group. The general story is pretty simple: The higher the parents’ income, the higher their kids’ SAT scores."

The SAT test is a finely-honed way to ascertain which kids come from which socio-economic groups.

I've posted stuff by Daniel Pink before:

• the adventures of johnny bunko
• motivation