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PUBH/6245 PUBH6245 PUBH 6245 WEEK 1 QUIZ

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PUBH 6245 WEEK 1 QUIZ Scenario 1: Type 2 Diabetes Research A researcher from a state university is interested in exploring factors that may be associated with the development of type 2 diabetes (DB2) among the Mexican American population in the state. Existing demographics, diabetes prevalence and incidence, and other data have already been compiled by the state health agency and the National Diabetes Association. The researcher has access to the data and will analyze the data to answer her research questions. 1. Based on the study description, what is most likely to be the primary research question? What factors are associated with a diagnosis of DB2 among Mexican American adults age 18 and over in the state? 2. What is most likely the research design of this study considering the primary research question? 3. Is this study primarily 4. What type of sampling technique will be used in this study? Scenario 2: Cancer Research The administrators of a large automobile factory in the Midwest have learned that a paint solvent used by the factory for more than 10 years has just been placed on a list of suspected carcinogens by the National Cancer Institute. Research has not established a definite link between the two. Two independent professional health sciences researchers have been hired by the factory administration to determine if any of the 5,000 workers who were exposed to the solvent are truly at risk for developing cancer. The researchers plan to study the exposed workers for at least 5 years, but preferably for 10 years, depending on available funding. 1. Which of the following is most likely to be the primary research question for this study? How many of the 5,000 workers that were exposed to the solvent will develop any type of cancer in the next 10 years? 2. Which study design will the researchers use in order to answer the research question? 3. Is this study primarily: Observational 4. What type of sampling technique will be used in this study? Scenario 3: Mathematics Educational Research An educational specialist/researcher has developed a new method for teaching basic mathematics to fifthgrade students. The researcher developed the new method based on his 20 years of teaching mathematics to primary school children and on his own research in mathematics curriculum and development. He hypothesizes that his new method is a better and more effective way of teaching math to children than the existing method, resulting in higher math skills. The researcher plans to compare the mean scores on math skills tests of each class at base, mid, and endpoints during the school year. The researcher has received permission to pilot test the new method over a 9month period in a local elementary school in his district using two classes of similar fifthgrade students, each having 15 students. Students will be randomly assigned to Class A, which will be taught mathematics using the new method, or to Class B, which will be taught mathematics using the school’s existing method. 1. Which of the following would most likely be the primary research question for this study? Are the mean mathematics final test scores of Class A and Class B statistically different, with Class A students scoringhigher than Class B students? 2. Which study design will the researchers use in order to answer the research question? 3. What type of sampling technique will be used in this study? 4. Is this study primarily: Scenario 4: Childhood Obesity A group of researchers is interested in addressing the problem of childhood obesity in a part of their city that has been designated as a “food desert” by the state health department. Casual observation indicates that rates of childhood obesity might be high, but no one has systematically collected hard evidence and data to date to support a rationale for an intervention. The researchers will conduct a housetohouse survey of all families in t

PUBH/6245 PUBH6245 PUBH 6245 WEEK 1 QUIZ

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