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题库 / OG2017V-CR-180
In an experiment, volunteers walked individually through a dark, abandoned theater. Half of the volunteers had been told that the theater was haunted and the other half that it was under renovation. The first half reported significantly more unusual experiences than the second did. The researchers concluded that reports of encounters with ghosts and other supernatural entities generally result from prior expectations of such experiences.
Which of the following, if true, would most seriously weaken the researchers' reasoning?
None of the volunteers in the second half believed that the unusual experiences they reported were supernatural.
All of the volunteers in the first half believed that the researchers' statement that the theater was haunted was a lie.
Before being told about the theater, the volunteers within each group varied considerably in their prior beliefs about supernatural experiences.
Each unusual experience reported by the volunteers had a cause that did not involve the supernatural.
The researchers did not believe that the theater was haunted.
被事先告诉有鬼的报告更多不正常经历，所以是预先告知导致不正常经历；
相关因果
第一组人不信有鬼的话但还是害怕了，所以断掉联系
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