ANOVA ONEWAY AND FACTORIAL (TWOWAY, R.M, ANCOVA) Flashcards

1
Q

When do we use ANOVA?

A
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2
Q

Within group ANOVA

A

Error

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3
Q

Between group ANOVA

A

Effect

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4
Q

F test ANOVA

A

Si F es muy superior a la unidad, las varianzas comparadas difieren y se rechazará la hipótesis nula

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5
Q

ANOVA IN STATA

A
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6
Q

Total SS and df in ANOVA

A
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7
Q

Assumptions so as to use ANOVA

A
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8
Q

anova allows to save the residuals if after anova you use the command:
predict myresiduals, res

A
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9
Q

What can we see?

A

Normality test for residuals in ANOVA

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10
Q

When do we use Kruskal-Wallis?

A
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11
Q

Kruskal-Wallis, ¿qué observamos?

A
  1. Estamos haciendo un cambio.
  2. Vemos que residuals no cumplen normalidad y no hay homogeneidad (Bartlett).

DEFINITIVAMENTE, USAMOS KRUSKAL WALLIS

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12
Q

KRUSKAL-WALLIS PROCEDURE

A
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13
Q

KRUSKAL-WALLIS IN STATA

A
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14
Q

BONFERRONI: post hoc penalization

A
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15
Q

BONFERRONI: post hoc penalization with our partial

A
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16
Q

Sidak multiple testing method (post hoc)

A
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17
Q

Scheffe multiple testing method (post hoc)

18
Q

A PRIORI ORTHOGONAL TEST FOR MULTIPLE TESTING

19
Q

Contrasts in multiple testing

20
Q

Procedimiento Benjamin-Hochberg para controlar FDR en múltiple testing

21
Q

Método de Bejamin-Hochberg

22
Q

FDR IN STATA

23
Q

REPASO STATA ANOVA

24
Q

TWO-WAY BALANCED ANOVA

A

Identical Sd and n in each cell

25
TWO-WAY ANOVA BALANCED DESIGN EJERCICIO TIPO EXAMEN
26
TWO-WAY ANOVA EXERCISE WITH INTERACTION
27
When we have interaction, we split sample size
28
Testing for interaction in a TWO-WAY ANOVA
Recordar que los DF en interaction se sacan multiplicando los DF de las variables independientes
29
TWO-WAY ANOVA WITH INTERACTION
30
ESQUEMA GENERAL SS DISTRIBUTIONS
31
ESQUEMA DE VARIABILIDADES RESIDUALES
32
PRIMER PASO EN REPEATED MEASURES ANOVA
Reshape to long format
33
STATA PARA REPEATED MEASURES ANOVA, después de haber pasado a long format
34
DF en test de ANOVA for repeated measures
35
Sphericity in ANOVA for repeated measures
36
ANOVA FOR REPEATED MEASURES
37
ANOVA FOR REPEATED MEASURES ASSUMPTIONS
38
What method are we using?
39
ANCOVA IN STATA
We use margins to obtain now the adjusted means
40
Linear regression
41
SIMPLE LINEAR REGRESSION STATA