AMS 5 Study Guide - Quiz Guide: The Control Group, Brie, Confounding
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AMS 5 Full Course Notes
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June 23, 2016: (5 pts) various studies have found an association between smoking and liver cancer. These studies note that alcohol consumption is a confounding variable. This means (a) drinking alcohol causes liver cancer. (b) people who smoke also drink alcohol, and drinking alcohol causes liver cancer. The fact that alcohol consumption causes liver cancer is not enough by itself to make it a confounding variable. The relation between drinking and liver cancer, together with the fact that smoking and drinking are associated means that the higher rate of liver cancer among smokers might be explained by their alcohol consumption. This is the confounding e ect: california is evaluating a new rehabilitation program for prisoners before their release. The goal of the program is to reduce the recidivism rate the percentage of released prisoners who return to prison within two years of their release. The program is voluntary and involves several months of.
