An article in Science News (1 June 1996, 149, p. 345) claimed that “evidence suggests that regular consumption of milk may reduce a person’s risk of stroke, the third leading cause of death in the United States.” The claim was based on an observational study of 3150 men, and the article noted that the researchers “report strong evidence that men who eschew milk have more than twice the stroke risk of those who drink 1 pint or more daily.” The article concluded by noting that “those who consumed the most milk tended to be the leanest and the most physically active.” Go through the list of seven “reasons two variables may be related,” and discuss each one in the context of this study.
Answer to relevant QuestionsIman (1994, p. 505) presents data on how college students and experts perceive risks for 30 activities or technologies. Each group ranked the 30 activities. The rankings for the eight greatest risks, as perceived by the ...In a test for extrasensory perception (ESP), described in Case Study 13.1 in the next chapter, people were asked to try to use psychic abilities to describe a hidden photo or video segment being viewed by a “sender.” ...A case-control study in Berlin, reported by Kohlmeier, Arminger, Bartolomeycik, Bellach, Rehm, and Thamm (1992) and by Hand and colleagues (1994), asked 239 lung cancer patients and 429 controls ( matched to the cases by age ...In a survey for a statistics class project, students in the class were asked if they had ever been in a traffic accident, including a minor “fender-bender.” Of the 23 males in the class, 16 reported having been in an ...The headline in an article in the Sacramento Bee read “Firing someone? Risk of heart attack doubles” (Haney, 1998). The article explained that “between 1989 and 1994, doctors interviewed 791 working people who had just ...
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