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Studies involving patients randomly assigned to treatment groups and then observed in order to study response...

  1. Studies involving patients randomly assigned to treatment groups and then observed in order to study response to treatment are called (1 mark)
  1. Retrospective studies
  2. Case-control studies
  3. Observational studies
  4. A case history study
  5. An observational study
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Studies involving patients randomly assigned to treatment groups and then observed in order to study response to treatment are called

C. Observational study

For further details , an observational study draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns . One common observational study is about the possible effect of a treatment on subjects, where the assignment of subjects into a treated group versus a control group is outside the control of the investigator.

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