A screening test correctly identifies 90 of 100 patients who truly have a disease. What does this value represent?
1Specificity of 90 percent
2Positive predictive value of 90 percent
3Sensitivity of 90 percent✓ 정답
4Negative predictive value of 90 percent
해설
The proportion of people with the disease who test positive is the sensitivity. The proportion of people without the disease who test negative is the specificity. Predictive values are calculated in the other direction, with the test result in the denominator.