In a Word - Validity

Send us a textToday I discuss the term “validity.” Let’s say we wanted to develop a test that identifies pathological character traits or quantifies depression symptom burden on a patient. A good test is going to do more than simply list the diagnostic criteria for various diagnoses and then ask the patient if they think that sounds like them. A test needs to have a few things. First it needs to have a defined purpose. Is it to be used for diagnosis in a clinic o...