The overall accuracy of a test is the measure of "true" findings (true-positive + true-negative results) divided by all test results. This is also termed "the efficiency" of the test.
overall accuracy =
= ((a+d) / (a + b + c + d))
where:
• a + d = true positives + true negatives = all people correctly classified by testing
• (a + b + c + d) = sum of (true positives, false positives, false negatives, true negatives) = total population
To read more or access our algorithms and calculators, please log in or register.
