Estimating treatment effects using observational data.

  title={Estimating treatment effects using observational data.},
  author={Ralph B. D'Agostino},
  volume={297 3},
THE RANDOMIZED CLINICAL TRIAL (RCT) IS THE ideal method for measuring treatment effects. Participants in clinical trials are randomly assigned to a treatment or control group. Randomization reduces biases by making treatment and control groups “equal with respect to all features,” except the treatment assignment. When randomization is performed correctly, differences in efficacy found by statistical comparisons can be attributed to the difference between the treatment and control. However, the… CONTINUE READING


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