If all subjects in the aspirin treatment group are athletes and all subjects in the control group

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If all subjects in the aspirin treatment group are athletes and all subjects in the control group are not athletes, then there is a danger of which of the following: 

(a) Samples that are too small

(b) Confounding

(c) Blinding

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Related Book For  book-img-for-question

Statistical Reasoning For Everyday Life

ISBN: 978-0134494043

5th Edition

Authors: Jeff Bennett, William Briggs, Mario Triola

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