Overview of Study Designs in Clinical Research
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Questions and Answers

What is the main characteristic of observational studies?

  • The investigator observes what is happening among a group of subjects. (correct)
  • The investigator manipulates the exposure to assess the outcome.
  • The investigator controls the allocation of subjects in different groups of the exposure.
  • The investigator selects specific subjects to be included in the study.

    • What is the main objective of descriptive studies?

  • To control the allocation of subjects in different groups of the exposure
  • To describe the main features of the population (correct)
  • To manipulate the exposure to assess the outcome
  • To select specific subjects to be included in the study

    • What is a case report in the context of descriptive studies?

  • A report that manipulates the exposure to assess the outcome
  • A report that describes unusual medical occurrences based on one patient (correct)
  • A report that selects specific subjects to be included in the study
  • A report that controls the allocation of subjects in different groups of the exposure

    • In observational studies, who controls the allocation of subjects in different groups of the exposure?

    <p>The investigator</p> Signup and view all the answers

    What is the primary focus of a case report?

    <p>To describe unusual medical occurrences based on one patient</p> Signup and view all the answers

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