Health Care > QUESTIONS & ANSWERS > New Jersey City University - HLTH 425Chapter 5 (All)
New Jersey City University - HLTH 425Chapter 5
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Chapter 5 HW 1. Define the following terms: a. Association - b. Positive association - r. c. Negative association - d. Nonlinear association – cannot find a definition. e. Dose-response rela... tionship - 2. Describe three types of associations (chance, non-causal, and causal) that are possible among exposures and health outcomes. Using your own experiences, give an example of each one. 3. How are a scatter plot and a contingency table helpful in demonstrating an association? 4. Define what is meant by a causal association. • Causality is not proven in any one study. 5. Statistics are an important aspect of evaluating associations. a. What is the difference between parameter and a statistic? b. Distinguish between a point estimate and a confidence interval estimate. c. How does power apply to statistical testing? d. How is clinical significance different from statistical significance? 6. Describe a multimodal curve. What is the significance for epidemiology of a multimodal curve? 7. Cases of gastrointestinal illness that occurred during the salmonella Saintpaul epidemic were distributed as a unimodal curve. What is another name for this type of curve? Why is this important for epidemiology? [Show More]
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