Solved – Finding True Positive and True Negative values from sensitivity

sensitivity-specificity

I have the sensitivity value known as, 91%. Can we derive the True Positive (TP) and True Negative (TN) values from that. Is that possible at all?

Thanks.

Best Answer

If the only thing you know is the sensitivity, the answer is no. Even if you know the total population this sensitivity was calculated in, the answer is still no. Because the sensitivity calculation only contains information about the TP and FN. You still have the unaccounted false positives and true negatives. You need more information to be able to calculate these.

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