This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
If specificity of test increases ? 
Select and explain. 
A. Low false negative, B. Low true negative, C. More false positive, D. More false negative
D: More false negative
Answer: D: More false negative 
Explanation: Ans. is 'd' i.e., More false negative High sensitivity gives large no. of false positives High specificity gives large no. of false negatives. Remember If a population has more false positive cases :? Screening test is more sensitive Positive predictive value of the test is low Prevalence of disease is low If a poulation has more false negative cases Screenign test is more specific Negative predictive value of the test is low