Argument 76
The following appeared as part of an article in a health and beauty magazine.
'A group of volunteers participated in a study of consumer responses to the new Luxess face cream. Every morning for a month, they washed their faces with mild soap and then applied Luxess. At the end of that month, most volunteers reported a marked improvement in the way their skin looked and felt. Thus it appears that Luxess is truly effective in improving the condition of facial skin.'
In order to prove the point that Luxess is truly effective in improving the condition of facial skin, the author of this article provide several facts and illustration from four standpoints as evidence which seems reasonable on the surface. In fact, all of them are weak and easy to cause misunderstanding in some logical level from my point of view.
First of all, the arguer provide a study of a group of volunteers who use the new Luxess face cream. Lacking the number of the consumer responers, I suspect actually how many people involving in this study. The smaller the portion, the less reliable of this results. It is entirely probly that only a small proportion in the population can satisfy this kind of face cream.
Another problem is the representativness of this study. As we know, people at different age have different reactions to the same face cream. Young people which is a certain age group that have better skin texture than that of the old. So, it is not surprise that young ladies have white and smooth skin.
Simultaneously, I can not help thinking about the study's anthority. Suppose the study is controled by the face cream factory, would the investigator report the bad reacion on those volunteer's skin even it turly happened.
Besides, given that all factors as I mentioned above can be ignored, the fact that most voluteers reported a marked improvement in the way their skin looked and felt lend no sufficient support as to the good effects the Lucess brought. Mind you, it is just a better "feeling" and "looking", so how about the texture of the skin? Maybe behind the gooding looking, in fact the skin are becoming worse.
Finally, according to the argument, we know that every morning for a month, the volunteers washed their faces with mild soap and Luxess. Without rulling out the role of the soap played in this test, we can not contribute the good facial skin to the Luxess. No evidence can point out that it is not the mild soap that prove the skin. And that really does work in our daily lives. As for many of my classmates who are poor, they use soap rather than face cream and have a good facial skin.
All in all, only judging from the single sample of the study, and conclusion is meanless. I wonder whether the same thing would happen in other people who have a good lifestyle and a good diet. As a result, lacking more evidence as the chemical constituent in Luxess and the outcome by using different age group of people, I can not concede the arguer's claims confidently.