usmlebuzz
Forum Elite
Topics: 93
Posts: 263
|
A test for disease X is known to have a sensitivity of 0.95, specificity of 0.65, positive predictive value of 0.73, and negative predictive value of 0.93. What is the false-negative rate?
A. 0.05
B. 0.08
C. 0.27
D. 0.35
E. Undeterminable from the information given
|
| Ouli Maty
Forum Elite
Topics: 33
Posts: 275
|
May be I have forgotten my maths courses but I think the correct answer is E
You can make up, four equations with four variables and lose an hour trying to solve them without success.
And remember that we are not allowed to have a piece of paper or calculator to resolve this problems. So it has to be some simple formula or not.
___________________
deep breathing...
|
| Yulia
Forum Elite
Topics: 19
Posts: 240
|
Is it the same as false negative ratio by any chance?
If so, it equals 1 - sensitivity
1-0.95=0.05 (A)
|
| faisal
Forum Newbie
Topics: 1
Posts: 14
|
yes yulia ,
u are right its the same and = 0.05
___________________
have patience ......give your best !
|
|
| |
| | | | |
