anova à plan simple Flashcards

1
Q

nombre de tests possibles dans l’anova à plan simple

A

k(k-1)/2

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2
Q

qu’est ce que l’estimé de variance intra ?

A

estimé erreur, variabilité entre les sujets d’unmême groupe

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3
Q

qu’est ce que l’estimé de variance inter?

A

estimé traitement, variabilit éentre les moyennes des groupes

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4
Q

F=

A

(SC inter / dl inter ) / (SC intra / dl intra)

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5
Q

Sc total =

A

Ex2 - (Ex)2/N

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6
Q

SC inter =

A

E(T)2/n - (Ex)2/N

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7
Q

probabilité d’additivité

A

SCtotal = sc intra + sc inter

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8
Q

dl inter =

A

k-1

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9
Q

dl intra =

A

k(n-1)

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10
Q

dl total =

A

N-1

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11
Q

conditions d’utilisation de l’anova à plan simple

A
  • échantillons indépendant
  • les n peuvent être inégaux
  • distribution normale des données
  • homogénéité des variances
  • VD sur une échelle intervalle ou ratio
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12
Q

intra =

A

erreur

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13
Q

erreur =

A

intra

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14
Q

inter =

A

traitement

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15
Q

traitement =

A

inter

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