In: Statistics and Probability
A screening examination was performed on 250 persons for Factor X, which is found in disease Y. A definitive diagnosis for disease Y among the 250 persons had been obtained previously. The results of diagnoses are charted here:
Test Results |
Disease Present |
Disease Absent |
Positive for Factor X |
40 |
60 |
Negative for Factor X |
10 |
140 |
Based on the information provided, which of the following expresses the sensitivity of this test?
A) 30%
B) 70%
C) 56%
D) 80%
Based on the information provided, which of the following expresses the specificity of this test?
A) 30%
B) 70%
C) 56%
D) 7%
Based on the information provided, the predictive value (+) is _____ and the predictive value (-) is__________.
A) 40%, 93%
B) 70%, 56%
C) 93% 40%
D) 56%, 70%