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Chemical Cause Skin Rashes

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An experimental study and a quasi-experiment are two different types of experiments that can be used. The main difference between the two is how groups are picked. In an experimental study, the researcher uses random sampling to decide who goes in which group and then which group gets the placebo and which gets the true variable. In a quasi-experiment, the researcher does not use random sampling. They decide who goes in which group; there is a methodology behind the actions. There have been many disagreements about using this method because some think it does not have much validity because the researcher uses their input too much. This type of experiment is designed for the sole purpose of proving a cause and effect relationship between two variables. A simple non research related example of this is “does this chemical cause skin rashes, and then the researcher tested it on individuals who have frequent skin rashes”. The reasoning behind this type of research would be to see if this chemical can be added to a hypoallergenic product. While, yes this makes complete sense, it also goes back to proving what the researcher wants it to. If there was random sampling in this example, then we would be able to see if this chemical affects everyone’s skin, just people with sensitive skin, or no one at all. It could prove a lot more things than just for people …show more content…
The medical facility would not want half of the staff to have the necessary tools to help patients and the other half not have it. This can then cause more problems for a patient. An example of an experiment is random sampling patients with anxiety disorders. Having one portion of them take the correct medications and one take a placebo will show positive results for the medication. And there are no detrimental side effects of the group of people who did not get the

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