The inability to understand abstract concepts or complex institutions is most prevalent during __________

The spoils system is

a. The practice of hiring the most qualified candidates for federal jobs b. The practice of giving offices and other favors of government to friends and supporters c. Completely unrelated to the practice of patronage d. A democratic means of filling offices

Research designs that include two or more independent variables are called

A) factorial designs. B) multiplicative designs. C) between-subjects designs. D) correlated-groups designs.