A researcher developed a new measure of intelligence. She th…
A researcher developed a new measure of intelligence. She then administered her new I.Q. test and an existing popular I.Q. test to a group of research participants. She found that participants who scored high on her new measure of intelligence also scored high on the existing popular I.Q. test, and that participants who scored low on her new measure of intelligence scored low on the existing popular I.Q. test. This demonstrates that her new test has _____.