Suppose a researcher recruited a group of male professors and a group of violent prisoners and randomly assigned 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 may expect ____.
A)the competitive game players and the documentary watchers to have similar testosterone levels
B)the violent prisoners and male professors to have similar testosterone levels
C)the violent prisoners who played competitive games to have the highest testosterone levels
D)the male professors who played competitive games to have the highest testosterone levels

Question

Quizplus · Accepted Answer

Competitive activities are known to increase testosterone levels, and given the violent prisoners' backgrounds, which may correlate with already higher baseline testosterone levels, it's reasonable to expect that engaging in competitive games would elevate their testosterone levels the most.

Suppose a Researcher Recruited a Group of Male Professors and a Group