Chapter 18
Experiments and Observational Studies: Medical Breakthroughs or Misleading Results?
IN THIS CHAPTER
Distinguishing experiments from observational studies
Dissecting the criteria for a good experiment
Understanding how observational studies work
Watching for misleading results
Medical breakthroughs seem to come and go quickly. One day you hear about a promising new treatment for a disease, only to find out later that the drug didn’t live up to expectations in the last stage of testing. Pharmaceutical companies bombard TV viewers with commercials for pills, sending millions of people to their doctors clamoring for the latest and greatest cures for their ills, sometimes without even knowing what the drugs are for. Anyone can search the Internet for details about any type of ailment, disease, or symptom and come up with tons of information and advice. But how much can you really believe? And how do you decide which options are best for you if you get sick, need surgery, or have an emergency?
In this chapter, I take you behind the scenes of experiments and observational studies, ...
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