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 means - 
Select and explain. 
A. Number of times the same results on repeated trials, B. Number of times variation is seen, C. Extent of accuracy, D. Level of simplicity
A: Number of times the same results on repeated trials
Answer: A: Number of times the same results on repeated trials 
Explanation: 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.