If a researcher wished to determine if two groups (e.g., children and adults) differed statistically on a measure, he/she would use

Socialist systems can be characterized by all of the following except:

a. Aims to achieve a high level of equality amongst all people b. Agricultural collectives and communes are common c. It is based on a command economy d. Unemployment tends to be a significant problem

Which of the following best describes deception in American politics?

A. The Civil War era saw a marked increase in deceptive politics. B. It has greatly increased in the last two decades.  C. It has always been a part of American politics.  D. It first became notable during the Nixon administration. E. The U.S. has remained remarkably free of deception in politics, as compared to other democracies.