Main Effects and Interactions

Main Effects and Interactions - Main Effects and...

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Drug 1 Drug 2 Young Old Hi GPA Low GPA Safe Scary Main Effects and Interactions For each scenario below, indicate whether there are main effects for each IV and whether there is an interaction. If there is an interaction, indicate the type of interaction (spreading or crossover). Describe the nature of each effect (e.g., “There is a main effect of candy, such that those who ate the candy were happier than those that did not eat the candy.”). 1. A doctor wants to test the effects of a new diabetes medication. She suspects that it may affect people with high and low blood pressure differently, so she conducts a test. High numbers mean the drug is more successful. Hi blood Lo blood 7 5 6 4 There is a main effect of blood pressure such that those who have high blood pressure respond more positively to the drug. There is a main effect of different drug types such that Drug 1 is more effective than Drug 2 There is no interaction 2. A new advertisement company wants to test which new car advertisement is more
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This document was uploaded on 06/05/2011.

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Main Effects and Interactions - Main Effects and...

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