To find out if her new spatial reasoning test is good at measuring what it was designed to measure, Dr. Chu compares the scores on her test with the scores and grades of college students enrolled in courses that involve spatial reasoning. In this instance, Dr. Chu is in the process of:

The word that means" relating to soldiers and war"

Ais a group of people living and working under a set of rules and traditions.

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.