Suppose That a Researcher Recruited a Group of Male Professors

Multiple Choice

Suppose that a researcher recruited a group of male professors and a group of violent prisoners, and randomly assign members of each group to either (a) play competitive games, or (b) watch a documentary about golf. Based on past research regarding testosterone levels, we should expect that ____.

A) the competitive game-players and the documentary-watchers would have similar testosterone levels
B) the prisoners and the professors would have similar testosterone levels
C) the prisoners who played competitive games would have the highest testosterone levels
D) the professors who played competitive games would have the highest testosterone levels