Which system allows voters to choose at the last minute the party primary in which to vote but then restricts them to the contests within whichever party they choose?

A researcher sends out a survey to all undergraduates in the political science program to measure social network usage. The survey must be completed on Facebook. What problem is her survey likely to encounter?

a. Selection bias b. Type I error c. Response bias d. Population error

The National Association for the Advancement of Colored People (NAACP) is most likely to fight to reduce which of the following?

a. racism b. affirmative action c. sexism d. sodomy