, 6.1.2 Modus 17
6.1.3 Mediaan 17
6.2 Maten van spreiding 17
6.2.1 Spreidingsbreedte 17
6.2.2 Standaarddeviatie 18
6.3 Meetniveau variabelen 18
6.4 Data interpreteren 18
6.5 T-toets 19
7 Correlatie en regressie 19
7.1 Correlatie 19
7.1.1 p-waarde 19
7.1.2 Spreidingsdiagram 20
7.1.3 Correlatie in SPSS 20
7.1.4 Niet causaal 20
7.1.5 Correlatie of t-toets 20
20
7.2 Regressie/General lineair model 21
3
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