How would you critique the design of this study

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Reference no: EM133347798

Question: You are reviewing an article for publication in a medical journal. In the study described in the article, 100 patients (average age 62) had joint replacement surgery. 100 additional patients (average age 71) were chosen at random from a group of healthy volunteers. Both groups were asked to fill out a survey that asked them about their symptoms. Based on the results of the survey, the author of the article claims that joint replacement surgery improved patient outcomes such as pain-free days, mobility, and other factors.

How would you critique the design of this study? Do you agree that the study's author is justified in making his or her claims? Offer at least two examples to support your conclusion.

Reference no: EM133347798

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