While participating in a lengthy experiment involving job training for welfare recipients, the economy enters into a major recession. Posttest measurements found that job training was unsuccessful in helping participants locate jobs. However, the experiment's designers claim that the findings were inconclusive because of internal invalidity. Which of the following sources of internal invalidity would they be most likely to name as the problem?
A. contamination
B. history effect
C. selection bias
D. the Hawthorne effect
B. history effect
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What was the original motivation for the creation of the Internet?
a. to create a communications network that could survive a nuclear attack b. to create new revenue sources for media conglomerates c. to facilitate communication between government and citizens d. to enable large scale social networking
How can a large city best use its money to enhance the quality of living for its residents yet still be a part of the global economy?
a. Build new tourist attractions in the downtown area. b. Entice a major league football or baseball team to move to the city by building a government-financed new sports stadium. c. Promote economic development and seek ways to create better paying jobs and affordable housing. d. Encourage a two-tier economy for the new transnational professionals and the service workers from the local area.
The collective action problem originates with
a. the rational belief that individual actions have great and clear effect b. the rational belief that individual actions have little or no effect c. the irrational belief that individual actions have great and clear effect d. the irrational belief that individual actions have little or no effect
Some difference feminists claim that international relations would more cooperative if there had been more woman leaders back in 1648 when the self-help system was developed. The main weakness of this view is that it is ______.
a. speculative b. pessimistic c. too Eurocentric d. too unrealistic