Question
A new test in the red line has been designed to diagnose a disease condition. The test is being applied to both normal and diseased populations. The graph of which is given below. Which of the following is correct regarding the test?
| A. |
High sensitivity and high specificity |
| B. |
High sensitivity and low specificity |
| C. |
Low sensitivity and low specificity |
| D. |
Low sensitivity and high specificity |
Show Answer
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Correct Answer � B Explanation |
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Answer- B. High sensitivity and low specificity
The line in red shows the new test curve distribution is shorter than old thus, the 95% CI range of new test will be more precise than the old test. For a particular cut off point, the sensitivity of the new test will be high since the 95% CI is precise for the new test than the old test. So, high sensitivity is achieved at the expense of a decrease in specificity.