DrVirgo
Forum Hero
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Please say in each situation if they increase or decrease.
Thanks.
When you INCREASE the cut-off, what happens to:
Specificity
PPV
Sensitivity
NPV
False Positives
False Negatives
When you DECREASE the cut-off, what happens to:
Specificity
PPV
Sensitivity
NPV
False Positives
False Negatives
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| robin082006
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When you INCREASE the cut-off, what happens to:
Specificity increases
PPV increases
Sensitivity decreases
NPV decreases
False Positives decreases
False Negatives increases
When you DECREASE the cut-off, what happens to:
Specificity decreases
PPV decreases
Sensitivity increases
NPV increases
False Positives increases
False Negatives decrease
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The Key to Succeed is Patience.
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| robin082006
Forum Hero
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easy way to remmember:
When you INCREASE the cut-off--> decrease Sensitivity and increase specificity (decrease cut-off causes counter trend)
increase sensitivity---> decrease PPV and increase NPV (decrease sensitivity cause counter trend)
increase specificity--> increase PPV and decrease NPV (decrease specificity causes counter trend)
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The Key to Succeed is Patience.
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| DrVirgo
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Topics: 1096
Posts: 3,515
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| gr8doc
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Posts: 210
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Good job Robin
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