A study published in a certain medical journal casts significant doubt on sugges

Question

A study published in a certain medical journal casts significant doubt on suggestions that adults who drink wine have higher levels of "good" cholesterol and fewer heart attacks. These researchers followed a group of individuals born at a hospital between 1944 and 1968 for 10 years. Their study found that in this group the adults who drank wine were richer and better educated than those who did not. a) What kind of study was this? A. This is a retrospective observational study. The researchers examined the medical records of people born at a hospital between 1944 and 1968. B. This is a prospective observational study. The researchers followed a group of children born at a hospital between 1944 and 1968. C. This is an experiment. The researchers manipulated the lives of a group of children born at a hospital between 1944 and 1968. D. This is an experiment. The researchers followed a group of children born at a hospital between 1944 and 1968. b) It is generally true that people with high levels of education and high socioeconomic status are healthier than others. How does this call into question the supposed health benefits of wine? A. The relation between health and education might be explained by the lurking variables of socioeconomic status and wine. B. Socioeconomic status and education must mitigate the effects of wine on health. C. The relation between health and wine consumption might be explained by the lurking variables of

Explanation / Answer

a) B. This is a prospective observational study. The researchers followed a group of children born at a hospital between 1944 and 1968

b) C. The relation between health and wine consumption might be explained by the lurking variables of socio economic status

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