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提纲：（1）在这两组病人中，二次感染的概率有多少。如果很少有二次感染，则实验没有说明任何问题。 （2）两组病人的条件是否一样。 （3）两个医生的专业方向也不一样，其他条件：如工作经验，业务水平都未知 （4）糖丸是否对恢复有阻碍作用 （5）即使服用抗生素的确有助于恢复，让所有病人都服用并不可行。 Data:2/3/2008 Time: 50min word：473 The author asserts that in order to heal quickly after muscle strain, all patients take antibiotics as part of their treatment according to the result of a current research. In such research patients are divided into two groups, one taking antibiotics regularly while the other taking sugar pills for substitution. Through logical and precise scrutiny, I become aware of several dubious fallacies in this argument that should be questioned even criticized. The premise of the comparison is the really existed secondary infections which keep some patients from healing quickly after severe muscle strain. However, there is no compelling evidence to inform us to what proportion of the existence of secondary infection in patient. Perhaps, the amount of patients suffering secondary infections is quite small. For that matter, this comparison is unmeaning, even of no value, for the conclusion from it is based on a totally wrong premise far from its original assumption. Even we assume that the proportion of infection is considerable, the author still fails to provide sufficient evidence to support his recommendation. The condition of two groups is unknown; what’s more the major of two doctors is not the same. As to the differences above, my common tells me that the youth is always superior to the old in healing after severe muscle strain, for the function of their body repairing is more vigorous and efficient compared to the older. Moreover, doctor’s knowledge and working experience on such issue is also playing a vital role in determining the time patients need to recover. To this particular case, a doctor who specializes in sports medicine is surely superior to a general physician, for his better familiarity with muscles. With the absence of such key evidence, the author’s assertion is unpersuasive and unconvincing as it stands. Even if two conditions of two groups are exactly the same, the method applied in this research is somewhat inappropriate. Query the function of sugar pills in this comparison, some suspicions are aroused. If sugar pills do prevent patients recovering from muscle strain, the author’s assertion was based on an unfair premise which prevents research result to be a forceful one. Further more, the assertion that it would be helpful to all patients, without query the credibility of antibiotics as the author mentions, may be contradicted when it comes to patients who might be allergic to such antibiotics. Without ruling such explanations, this recommendation needs a long way to be a real assertion applied to the cure of patients. In sum, some logical flaws weaken the validity of this recommendation. It would be sound if the author can provide compelling evidence on the condition of patients participating in this research and the exact function of sugar pills. To better evaluate it, the limitation of this method must be fully considered. | 
发表于 2008-2-3 16:46:13
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