Dear all,
We want to create a new test (Method A) to screen for a disease.
In fact, there is a ‘gold-standard’ screening test for the disease (Method B).
And the test result of gold-standard (Method B) is binary (Positive vs Negative).
However, the test result of the new test (Method A) is 3-class classification (Positive vs Negative vs. Doubtful).
Could we still calculate the Sensitivity, Specificity, NPV, PPV and Accuracy as being ways to indicate the accuracy of the new test (Method A)? (attachments: Table 1)
Morover, could we still calculate a kappa value shows an agreement between two methods ?
Thank you very much!
Dennis
We want to create a new test (Method A) to screen for a disease.
In fact, there is a ‘gold-standard’ screening test for the disease (Method B).
And the test result of gold-standard (Method B) is binary (Positive vs Negative).
However, the test result of the new test (Method A) is 3-class classification (Positive vs Negative vs. Doubtful).
Could we still calculate the Sensitivity, Specificity, NPV, PPV and Accuracy as being ways to indicate the accuracy of the new test (Method A)? (attachments: Table 1)
Morover, could we still calculate a kappa value shows an agreement between two methods ?
Thank you very much!
Dennis
Attached Files
