You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is 'Sensitivity' of a test is - and explain in detail?
It has been defined as the ability of the test to identify correctly all those who have the disease, true positive. A 90 percent sensitivity means that 90 percent of the diseased screened by the test will give a "true positive " result and the remaining 10 percent a "false negative " result. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 152