本帖最后由 飘飘zly 于 2009-6-28 15:24 编辑
Argument 167
A folk remedy* for insomnia, the scent in lavender flowers, has now been proved effective. In a recent study, 30 volunteers with chronic insomnia slept each night for three weeks on lavender-scented pillows in a controlled room where their sleep was monitored. During the first week, volunteers continued to take their usual sleeping medication. They slept soundly but wakened feeling tired. During the second week, the volunteers discontinued their medication. As a result, they slept less soundly than the previous week and felt even more tired. During the third week, the volunteers slept longer and more soundly than in the previous two weeks. This shows that over a short period of time lavender cures insomnia.
*A folk remedy is usually a plant-based form of treatment common to traditional forms of medicine, ones that developed before the advent of modern medical services and technology.
In the argument, the statement points out that lavender can cure insomnia as a folk remedy. The arguer takes a contrast experiment on 30 volunteers with chronic insomnia in three weeks. Through the observation of subjects every week, it cannot substantiate the expected results, and the experiment process suffers from several flaws.
First of all, it is an unwarranted assumption that, through the experiment in the first two weeks, the arguer contributes sound sleeping of the second week to lavender pillows. The experiment in these two weeks, added a factor of sleeping medication, can unfairly illustrate whether lavender or sleeping medication make main function for sleeping well. Through the reflection of subjects in this short time, it seems more potentially that the sleeping medication make patients sleep soundly, not lavender. As the similar experiment process, the arguer should provide the evidence of comparison of subjects between on lavender pillow and on the usual one. Without such evidence, the arguer cannot support the statement that lavender cures insomnia.
The experiment, the third week without clear conditions, fails to substantiate that the better sleep of subjects depends on the lavender pillow. Perhaps, subjects, in third week, take their usual sleeping medication before going to sleep; perhaps, subjects in this week feel wornout and sleep soundly; Perhaps, even if subjects in the third weeks slept longer and more soundly than in the previous weeks, the sleep-performance is not also so well as the average person. Without considering and ruling out these possibilities, it is fallacious that lavender could cure insomnia.
Even if the foregoing factor can be substantiate, the arguer ignores the clear definition of insomnia. If insomnia is defined as not falling asleep in the night, the response of subjects in experiment as how sleep soundly, feel tired, has no correlation with whether volunteers suffer from insomnia. The volunteers of experiment may be not insomnia patients, under a definition of insomnia. The result of the experiment seems to be meanless. In short, it is unclear definition of insomnia that leads to make a fallacy assess the argument.
The arguer also ignores that other factor make effects on the experiment. Insomnia as a chronic patience, the arguer cannot take a cause of insomnia into account. It, perhaps, results from job stress, spiritual factors, physical factors. It is unsound conclusion that only by sleeping lavender pillow could not solve a sleeping problem and cure insomnia.
To sum up, the argument is unconvincing as it stands. To strengthen the statement, the arguer should take a clear definition of insomnia. Under a assess standard, making a correct experiment has the only one different factor of volunteers, such as sleep with lavender pillow and usual pillow. Arguer would have to demonstrate that volunteers sleep soundly with lavender pillow ruling out the sleeping medication factor. If the argument had include the given factors discussed above, it would been more logical to accept.
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