Notice
9 What is the intrinsic validity of a quantitative diagnostic test?
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Descriptif
There are many quantitative measures for which there is a zone of overlap between the measures made in both the cases and non-cases. Thus, we have to choose a threshold that allows us to decide on the best option. The ROC curve, which is explained again to viewers, is the method that answers this question. It also makes it possible to compare various methods. The construction of the ROC curve is explained and illustrated point by point.
Thème
Avec les mêmes intervenants et intervenantes
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1 Distribution des valeurs de multiples échantillons
GayFrédérickEchantillons, Distribution Normale, Moyenne d’une population, p-value
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1 Distribution of multiple sample values
GayFrédérickSamples, Normal Distribution, Average of a population, p-value
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2 Does a sample come from this population?
GayFrédérickComparison of a sample to a norm, Null hypothesis (HO), Alternative hypothesis (H1), Alpha risk, p-value
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2 Un échantillon provient-il de cette population ?
GayFrédérickComparaison d’un échantillon à une norme, Hypothèse nulle (HO), Hypothèse alternative (H1), Risque alpha, p-value
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3 Do two samples come from the same population or not?
GayFrédérickComparison of 2 samples, Null hypothesis (H0), Alternative hypothesis (H1), Alpha risk, p-value
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3 Deux échantillons proviennent-ils ou pas de la même population ?
GayFrédérickComparaison de 2 échantillons, Hypothèse nulle (H0), Hypothèse alternative (H1), Risque alpha, p-value
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4 Comment poser ses hypothèses ?
GayFrédérickTest d’hypothèse, Hypothèse nulle (H0), Hypothèse alternative (H1), Risque alpha, p-value, Test bilatéral, Test unilatéral
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4 How do you make hypotheses ?
GayFrédérickHypothesis test, Null hypothesis (H0), Alternative hypothesis (H1), Alpha risk, p-value, Bilateral test, Unilateral test
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6 Comment se présentent vos données ?
GayFrédérickIndividus statistiques, Variables, Types de variable, Tableau individus-variables, Tableau de contingence
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6 How does your data look?
GayFrédérickStatistical individuals, Variables, Variable types, Individual-variable table, Contingency table