Week-11-Apr. 12 Learning Guide CH 14-15-20

Week-11-Apr. 12 Learning Guide CH 14-15-20 -...

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BSCI425 Learning Guide Week 11, Apr 12‐15, 2010 This week we will finish causation (chapters 14 and 15) and briefly talk about ethical considerations. There is a lot of material, but much of it we have seen in various forms before. The key question is how does one go from association to causation and what are the assumptions and limitations. In chapter 14 key concepts are presented in Tables 14‐2, 14‐5 and 14‐6 as well as Figs. 14‐25 and 14‐ 26. Be sure and visit the ELMS blog this week. You should be able to describe the types of causal relationships. Chapter 15 deals with bias, confounding and interactions. Be sure you understand what each refers, their relationships to each other and their differences. Key concepts are illustrated in Tables 15‐2, 15‐7 and 15‐8. For interactions carefully work through Tables 15‐11 to 15‐16 and bear in mind the difference between attributable risks and relative risks as well as additive vs. multiplicative affects. Think about why real world data often lies between the two.
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