Ads that compare candidates' positions to those of their opponents are known as:

If a researcher wanted to study how one variable affects a behavior, that investigator might set up a study in which other important variables are controlled for so they don't influence the behavior systematically

The researcher is probably using what type of research design? a. qualitative research. b. correlational research. c. observational research d. experimental research.

Depending on patterns of population growth or decline, states win or lose congressional seats with each new census. State legislatures are responsible for drawing the district lines, in a process known as

A) redlining. B) consolidation. C) cracking. D) pushing. E) redistricting.