A A screening test is performed on women with a ‘high risk’ to confirm or refute the possibility of a disorder.

B A diagnostic test gives a measure of the risk of being affected by a particular disorder.

C Specificity is the probability that a subject who is negative will not have the condition.

D Sensitivity is the proportion of subjects with the condition classified as screen positive for the condition.

E Amniocentesis is an example of a diagnostic test.

F None of the above.