An appropriate question to ask about a diagnostic study is:
A) Did the study make a comparison to a reference standard?
B) Did the study make a comparison to a prognostic test?
C) Did the study make a comparison to an intervention?
D) Did the study make a comparison to a treatment technique?

Question

Quizplus · Accepted Answer

An appropriate question to ask about a diagnostic study is whether it made a comparison to a reference standard. This is because a reference standard (or "gold standard") is the best available method under reasonable conditions for diagnosing a particular condition, and comparing a new diagnostic test to this standard is crucial for assessing the new test's accuracy and reliability. Comparisons to prognostic tests, interventions, or treatment techniques are not directly relevant to evaluating the diagnostic accuracy of a test.

An Appropriate Question to Ask About a Diagnostic Study Is