In 1973, a remote town first acquired television. Shortly before broadcasts began there, a study was made of children's behavior. A similar study in the same community, after two years of TV, showed that the aggression rate among children of this age had increased by 160%. The conclusion drawn was that TV plays an important role in generating aggressive behavior in children. A similar study, covering the same years, was made in two similar communities that had had television for decades. This study showed no change in the aggression rate from 1973 to 1975. The results of the second study:
A) suggest that the prevalence of violent themes in TV programming may be explained by the tendencies toward violence which are deeply-rooted in human nature.
B) indicate that different social groups may react quite differently to similar stimuli.
C) demonstrate that long-term exposure to TV has no more severe effects than short-term exposure.
D) support the conclusion drawn from the first study.
E) disprove the conclusion drawn from the first study.
答案是D,大家小心不要选到C作者: tongxun 时间: 2002-10-24 13:44
the study after the community's acquiring TV showed the increase, but after decades after the two similiar communities' acquiring TV, another study showed no change( 就是说还是 increased 160%).
所谓的 no change means that the rate increased from 1973-1975 remains 160%,
不过如果考到这题, 我会选 E 的作者: tongxun 时间: 2002-10-25 12:44
Redi is right . Summarize the two study which, actually both was made of children's behavior:
1. Conclusion: "TV plays an important role in generating aggressive behavior in children"
Premise: study showed that the aggression rate among children of this age had increased by 160%Children"
Pay attention to children: because a study is conducted shortly before broadcasts began there===> TV is very new to Children here.
2. Conclusion: is exact the question.
Premise: This study showed no change in the aggression rate from 1973 to 1975.
Pay attention to : Children is in the two communities that had had television for decades and same time we are told that "A similar study" , "covering same year 1973-1975".
So, Children new to TV----> changed 160% after two years 1973-1975.
CHildren used to TV ----> unchanged after two years 1973-1975 ====> Actually this study is a contrast to above one.
Conclusion: "TV plays an important role in generating aggressive behavior in children"
We should very close to the difference between two contrasts.作者: tongxun 时间: 2002-10-26 12:31
但我还有一个疑问,为什么第二项研究要选two similar communities,因为按照zyh79的"排除他因"理论,那么 a similar study, covering the same years, was made in ONE similar community that had had television for decades.....,就足以排除他因啦!
请指正!
to tongxun,
考试是我为什么还选E,因为看过一遍题目,我印象最深的就是 no change in similar study
about ...similar communities..., 所以第一判断就是the second study weaken(disprove) the conclusion of the first study. 惭愧!!!!!作者: zyh79 时间: 2002-10-27 11:30
