An observational study is an empirical investigation of the effects of treatments, policies or exposures. It differs from an experiment in that the investigator cannot control the assignment of treatments to subjects. Scientists across a wide range of disciplines undertake such studies.
| Author: Paul R. Rosenbaum |
| Publisher: Springer |
| Publication Date: Dec 01, 2010 |
| Number of Pages: 377 pages |
| Binding: Paperback or Softback |
| ISBN-10: 1441931910 |
| ISBN-13: 9781441931917 |
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