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FHS-KE | Introduction to Critical Appraisal Skills: Study Validity

Study Validity

The validity of the information can vary by the type of the study.
There is need to identify the essential issues of validity for the 4 main types of questions:

  • Therapy
  • Diagnosis
  • Prognosis
  • Cause/Etiology

Types of questions explained
 How to select treatments to offer patients that do more harm and that are worth the efforts and cost of using them
Diagnosis: When considering the possible causes of a patient’s clinical problem
Prognosis: How to estimate the patients likely clinical course over time and anticipate likely complications of the disease.
Cause/Etiology: How to identify causes for disease.


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