<prompt> Test indicates that it has a sensitivity of 90. It means that90 of the individuals tested are true positive10 are true positive90 of the individuals tested are false negatives10 are true negatives  <response>: A 90 of the individuals tested are true positive Term Sensitivity was introduced by Yerushalmy in 1940s as a statistical index of diagnostic accuracy. It has been defined as the ability of a test to identify correctly all those who have the disease, that is true positive. A 90 per cent sensitivity means that 90 per cent of the diseased people screened by the test will give a true positive result and the remaining 10 per cent a false negative result. 