The 2003 war in Iraq was the United States' most immediate and direct response to the September 11, 2001, terrorist attacks

In time-series designs, what are the two major potential confounding factors that are difficult to control without the addition of a comparison group?

A) instrumentation and history B) regression to the mean and instrumentation C) history and attrition D) instrumentation and selection

From Fearon's perspective, why is it preferable for states to choose peace over war?

a. War always has costs. b. Preparation for war is far greater than preparation for peace. c. States generally have enough information about the adversary to guarantee peaceful relations. d. The choice of peace ensures a negotiated settlement between states. e. Peace treaties always produce better consequences than war.