What might be a reason that upper-status students score higher on SATs?

Question

Quizplus · Accepted Answer

The fact that their parents are better able to obtain help for them, such as through SAT prep courses or extra tutoring, is likely a contributing factor to their higher scores. IQ is unlikely to be the sole determining factor, and the fact that they are all white is not necessarily a relevant factor in their test scores. The likelihood of taking the test multiple times may also be a factor, but the prompt does not provide any evidence or support for this option.

What Might Be a Reason That Upper-Status Students Score Higher