The Importance of Diagnostic Test Parameters in the Interpretation of Clinical Test Findings: The Prone Hip Extension Test As an Example (Report‪)‬

Introduction Since the fundamental purpose of any diagnostic test is to help determine whether a patient has or does not have a particular condition, (1,2) clinicians should be aware of certain parameters regarding the tests they use if these tests are to be applied most appropriately and effectively in practice. The most basic parameters that need to be established regarding any clinical test are that it demonstrates a sufficient degree of reliability and validity. (3-5) If these two important parameters are not met, then the test's value in assisting clinicians to arrive at a diagnosis, form a treatment plan, or monitor a patient's progress is questionable. (3-5)