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Quick Scroll 07.17.07 (1 year ago) #11
precision inversely proportional to confidence interval n directly proportional to square root of sample size
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Quick Scroll 07.17.07 (1 year ago) #12
power[P]=1-beta error
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Quick Scroll 07.17.07 (1 year ago) #13
false negative[FN]=1-SENSITIVITY
FP=1-SPECIFICITY
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Quick Scroll 07.17.07 (1 year ago) #14
PPV=[sensitivityS*prvalenceP]
---------------------------------------------------
[S*P]+[1-P][1-specificity]
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Quick Scroll 07.17.07 (1 year ago) #15
PPV=[sensitivityS*prvalenceP]
---------------------------------------------------
[S*P]+[1-P][1-specificity]
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Quick Scroll 07.17.07 (1 year ago) #16
PPV=[sensitivityS*prvalenceP]
---------------------------------------------------
[S*P]+[1-P][1-specificity]

NPV=[1-P][specificity Sp]
---------------------------------------------------
[1-P][Sp]+[1-S][P]
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Quick Scroll 07.17.07 (1 year ago) #17
LIKELIHOOD RATIO[LR]
LR+ve=T+ D+ TP S
----------------------- = -----= ----
T+ D- FP 1- Sp
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Quick Scroll 07.17.07 (1 year ago) #18
sorry all messed up
LR+ =[T+ D-]/[T+ D-]=TP/FP=S/1-Sp

LR- =[T- D+]/[T- D-]=FN/TN=1-S/Sp
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Quick Scroll 07.17.07 (1 year ago) #19
standard error=standard deviation/sqroot of sample size
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Quick Scroll 07.17.07 (1 year ago) #20
coefficient of variation=standard deviation
---------------------*100
mean
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