Who argued that differences across political systems may not be as great as the differences across policy areas?

What is a characteristic of quasi-experimental research?

a) does not establish cause and effect relationships b) assignment to groups based on some pre-determined characteristic c) has the highest degree of control over the factors being examined d) assignment to groups is random in nature

In the 1930s, hundreds of thousands of officials were removed from office, imprisoned, and executed in the

a. collectivization. b. campaign for socialism in one country. c. purges. d. five-year plan. e. crackdowns.