This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Screening, Subject name: Social & Preventive Medicine
Evaluation of screening test is by- 
Select and explain. 
A. Sensitivity, B. Specificity, C. Predictive value, D. All the above
D: All the above
Answer: D: All the above 
Explanation: .<p>evaluation of a screening test is done by*specificity,*sensitivity,*predictive value of a positive test,*predictive value of a negative test,*percentage of false negatives,*percentage of false positives etc.</p><p>ref:park&;s textbook of preventive and social medicine,22 nd edition ,pg no 131</p>