Receiver operator characteristic (ROC) curve is usually drawn between -: (A) Sensitivity and ( 1- specificity), (B) (1- sensitivity) and specifivity, (C) Sensitivity and specificity, (D) (1- sensitivity) and (1-specificity)
Answer is A. Ref:Parks 23rd edition X-axis : (1-specificity) Y-axis : Sensitivity. Receiver operator curve is used to find out the cutoff Cutoff nearest to the ideal line is considered to be the best cutoff.