Discussion 2

1.1 Researchers conduct a randomized controlled trial to determine if Med A reduces post-operative pain more than Med B. The primary purpose of double blinding this trial is to avoid: A. recall bias B. selection bias C. confounding bias D. non-random (differential) misclassification of exposure status E. non-random (differential) misclassification of outcome status
1.2 The main benefit of a randomized controlled trial (RCT) compared to all other epidemiologic study design is that t ...