Amy assumes that her son Jaden is in the preoperational stage of cognitive development. However when she pours water into a short, wide glass, and then pours the same amount of water into a tall, thin glass, she is surprised when Jaden recognizes that the two glasses have equal amounts of water. What explanation could you offer for Jaden’s response?

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