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Samenvatting Data-analyse: voorbeeld oefening van elke test

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Written in
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Marieke De Craemer 1 oefening per test van statistiek uitgewerkt in de 5 stappen

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Oefeningen van elke statistische test


OEFENINGEN VAN ELKE STATISTISCHE TEST.....................................................1
CHI-KWADRAAT.................................................................................................................... 2
CORRELATIE........................................................................................................................ 3
ONE SAMPLE T-TEST............................................................................................................. 4
PAIRED SAMPLES T-TEST........................................................................................................ 5
INDENPENDENT SAMPLES T-TEST.............................................................................................6
ANOVA (1)....................................................................................................................... 7
ANOVA (2)....................................................................................................................... 8
ANOVA (3)..................................................................................................................... 10
ENKELVOUDIGE LINEAIRE REGRESSIE......................................................................................12
MEERVOUDIGE LINEAIRE REGRESSIE.......................................................................................13
LOGISTISCHE REGRESSIE..................................................................................................... 14
TWO-WAY ANOVA (1)..................................................................................................... 16
TWO-WAY ANOVA (2)..................................................................................................... 18
TWO-WAY ANOVA (3)..................................................................................................... 20
ANCOVA........................................................................................................................ 22
REPEATED MEASURES ANOVA............................................................................................. 24
REPEATED MEASURES ANOVA............................................................................................. 26




STAPPENPLAN:

1. Start
2. Soort test
3. Uitvoeren analyse in SPSS
4. Rapportering




5. Besluit




1

,Chi-kwadraat
Is er een verband tussen aantal uren bewegen en BMI?

1. Start
Descrip frequenties laten lopen  geen uitschieters
2 kwalitatieve var: BMI en bewegen
Verband tussen zoeken
2. Test
Chi kwadraat
3. Uitvoeren analyse in SPSS
weighted cases aan: voor aantallen
80% vd cells > 5 & all cells >1
4. Rapportering

Pearson chi- 353,11
square
P-waarde <0,001


5. Besluit

Het verband tussen het aantal uren bewegen en BMI zijn statistisch
signficant van elkaar.

Aantal uren bewegen en BMI zijn afhankelijk van elkaar.




2

, Correlatie
Een onderzoeker wil het verband nagaan tussen 3 testen afgenomen bij 20
kinderen. Zijn
hypothese is dat er een positief verband is tussen motorische controle
(score op 25) en
motorisch leren (score op 100)

1. Start
Descript frequenties  Scatterplot
2 kwantitative var: score motorische controle & score motorisch
leren
Hypothese gesteld
Verband tussen zoeken
2. Soort test
correlatie
3. Uitvoeren analyse
Bivariate
4. Rapportering

Pearson correlatie: r- 0,66
waarde
p-waarde <0,001
p-waarde delen door 2
r = + dus positief verband
5. Besluit

Er is een positief statitisch significant verband tussen motorische
controle en motorisch leren.

Hoe hoger het ene hoe hoger het andere.




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