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
Reliability of screening test does not mean ? 
Select and explain. 
A. Reproducibility, B. Repeatability, C. Validity, D. Precision
C: Validity
Answer: C: Validity 
Explanation: Ans. is 'c' i.e., Validity Repeatability (reliability) Repeatability means, the test must give consistent results when it is repeated more than once on the same individual under same conditions. That means the results of test are precise (exact), So repeatability is some time called precision, reliability or reproducibility.