What is a difficulty in relying on referent values or cutoffs in converting a numerical test results into a yes-or-no clinical diagnosis?
A) Test results can fall beyond the cutoff values, leaving the diagnostic question unanswered.
B) The cutoff value is patient-specific and must be calculated for each individual patient.
C) The value considered to be the cutoff is variable depending on the prescribing physician.
D) There is a range of test result values that are shared between those with and without the condition.
Question 2
Which of the following variables has a significant effect on the predictive value of a test?
A) The doctor diagnosing the condition
B) The prevalence of the condition
C) The severity of the condition
D) The volume of the patient's sample tested
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