The tenet of _____ is that the welfare of society is best served by letting people pursue their own economic self-interest.

Which of the following is an appropriate statistical test for a within-subjects experiment with two experimental conditions and a dependent variable that produces score data?

A) repeated-measures ANOVA B) t-test for independent groups C) chi-square D) ANOVA for independent groups

Which of the following is true of the acquisition of nuclear weapons by terrorists or nonstate actors?

a. The fall of the Soviet Union has made the acquisition of nuclear material by terrorist groups more difficult. b. The IAEA regularly inspects both state and nonstate nuclear weapons facilities. c. Although unsuccessful in constructing a nuclear weapon, it has been proven that al Qaeda has acquired reasonable amounts of fissile material. d. The hardest route for a terrorist group to acquire nuclear weapons is to steal fissile material from a state military. e. The basic fissile material required to develop a nuclear weapon is very difficult to produce.