Med Entsch Find Flashcards

1
Q

Kognitive Heuristiken

A
  • Repräsentativität (seltene Krankheite, untypische Erfahrungen, Symptomabhängigkeit führen zu Verzerrungen)
  • Verfügbarkeit (dramatische, atypische, emotionale Ereignisse sind mental besser verfügbar)
  • Verankerung und Korerektur (meist zu geringe Korrektur)
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2
Q

Komplikationsrisiko Vorgehen

A

Identifikation von relevanten Symptomen
Gewichtung der Symptome
Ermittlung einer Wahrscheinlichkeit mit klinischen Vorhersageregeln, meist mit SCORES

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3
Q

Sensitivität

A

Sensitivität = Tatsächlich Positiv-Rate (TPR)

P(Test positiv/krank)=TP/(TP+FN)

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4
Q

Spezifität

A

Tatsächlich-Negativ-Rate (TNR)

P(Test negativ/nicht krank) = TN/(TN+FP)

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5
Q

Recall

A

Recall = Sensitivität

P(Test positiv/krank)=TP/(TP+FN)

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6
Q

Precision

A

P(krank/TestPositive) = TP/(TP+FP)

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7
Q

F1

A

2RecallPrecision/(Recall+Precision)

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8
Q

Accuracy

A

TP+TN/(TP+TN+FP+FN)

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9
Q

Odds

A

P/(1-P) oder p = Odds/(1+Odds)

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10
Q

LR likelihood ratio

A

P(S/D)/P(S/!D)
LR+ = P(+/D)/P(+/!D) = Sensitivität / (1-Spezifität)
LR- = P(-/D)/P(-/!D) = (1-Sensitivität)/Spezifität

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11
Q

Umformung des Theorems von Bayes

A

Odds(nach Test) = Odds(vor Test) * LR

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