new test for anxiety has a sensitivity of 80% and specificity of 90% against the reference standard ICD–10 diagnosis. Which of the following statements is true?
a) All individuals scoring positive on this test will have anxiety disorder
b) The false-positive rate is 10%
c) If the pre-test probability is 10%, the positive predictive value is 70%
d) The test should definitely be used in routine practice.
e) None of the above