What is TRUE about social mobility in the United States? OA
In the past, social mobility has been very rare.
ОВ.
There is usually more downward mobility than upward mobility.
O c.
More recently, the middle class has become smaller.
OD.
The opportunities for upward mobility continue to grow rapidly.

Intelligence tests are often used to predict a person's future ability to perform in a school setting. alfred binet's initial purpose for developing intelligence testing was to aid students in getting the remedial they may have needed in elementary school. which of the following measures is the best criterion for evaluating the predictive validity of intelligence testing? act school attendance school grades sat job placement