Some interest groups may focus their lobbying efforts on getting the public to put pressure on elected officials, which is a form of ______.

Poll taxes and literacy tests were all designed to

a. increase voter turnout rates. b. discourage voting by African Americans, Mexican Americans, and poor Whites. c. eliminate voter fraud in local elections. d. encourage two-party competition. e. assure and educated and responsible electorate.

Which of the following is a measure of effect size?

a. Cronbach's alpha b. G-Power c. analysis of variance d. Cohen's d