In a study of the effects of a reduced speed limit on arrests for speeding, it was discovered that the police had switched from radar to Vascar (a new way of measuring the speed of an oncoming car)
What possible confounding factor did this switch introduce?
A) instrumentation
B) history
C) maturation
D) regression to the mean
Answer: A
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Which is responsible for protecting the United States and its citizens from terrorism?
a. National Counterterrorism Center b. Federal Bureau of Investigation c. National Security Agency d. Department of Homeland Security
After the attacks on 9/11, which of the following did NOT occur with the relationship with Russia?
a. Putin offered his diplomatic support and Russian aid in fighting terrorism. b. Putin also accepted the American decision to withdraw from the Anti-Ballistic Missile (ABM) Treaty. c. Russia was denied full membership in the Group of Eight (G-8) d. The U.S. agreed to a new strategic arms pact—the Strategic Offensive Reductions Treaty (SORT). e. Russia began possessing "market economy" status in the world.