Calculations Flashcards by Ryan Govier

Q

How do you work out sensitivity?

A

TP/TP + FN

A high senstivity means low type 2 error

1 is maximum

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Q

How do you work out specificity?

A

TN/TN + FP

A high specificity means low alpha error

1 is maximum

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Q

How do you work out efficiency?

A

All the correct answers/all the answers

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Q

Positive predictive value

A

TP/TP + FP

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Q

negative predictive value

A

TN/TN+FN

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Q

How do you work out a percentage increase?

A

Work out the difference between the two numbers and divide this by the original and then X 100

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