comparing the methods of several research studies on aggression among monkeys
explaining the reasons for researchers interest in monkeys social behavior
discussing the development of investigators theories about aggression among monkeys
examining the effects of competition on monkeys social behavior
18. Which of the following best summarizes the findings reported in the passage about the effects of food deprivation on monkeys behavior?
Food deprivation has no effect on aggression among monkeys.
Food deprivation increases aggression among monkeys because one of the most potent stimuli for eliciting aggression is the competition for incentives.
Food deprivation may increase long-term aggression among monkeys in a laboratory setting, but it produces only temporary increases among monkeys in the wild.
Food deprivation may temporarily increase aggression among monkeys, but it also leads to a decrease in conflict.
Food deprivation decreases the intensity but not the frequency of aggressive incidents among monkey.
19. According to the author, studies such as Southwicks had which of the following effects on investigators theories about monkeys social behavior?
They suggested that existing theories about the role of aggression among monkeys did not fully account for the monkeys ability to maintain an established social order.
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