Statistiek B
STATISTIEK B
Schakelprogramma
Opleidings- en onderwijswetenschappen
Academiejaar 2015 - 2016
Mike Slangen
,Samenvatting Statistiek B
Inhoud
1 Hoofdstuk 1: Keuze van de meest gepaste analysetechniek ........................................................... 3
1.1 STAP 1: Identificeren van variabelen en hun meetniveau............................................................... 3
1.2 STAP 2: Verbanden tussen variabelen – teken onderzoeksvraag ................................................... 3
1.3 STAP 3: Keuze analysetechniek ...................................................................................................... 5
2 Hoofdstuk 2: T-test ...................................................................................................................... 7
2.1 Independent samples design vs repeated measures design .......................................................... 7
2.1.1 Independent samples design.................................................................................................. 7
2.2 Interpretaties t-test ......................................................................................................................... 9
3 Hoofdstuk 3 – Anova.................................................................................................................. 11
3.1 Interpretaties.................................................................................................................................14
4 Kruistabellen ............................................................................................................................. 15
4.1 Kruistabel aanmaken ....................................................................................................................15
4.2 Kenmerken van samenhang .........................................................................................................16
4.3 Chi-kwadraat .................................................................................................................................16
5 Correlaties ................................................................................................................................ 18
5.1 Puntenwolk aanmaken .................................................................................................................18
5.2 Covariantie ....................................................................................................................................18
5.3 Significantie-toets correlaties........................................................................................................19
6 Hoofdstuk 6: Bivariate (lineaire) regressie.................................................................................... 21
7 Hoofdstuk 7: Assumpties bij lineaire regressieanalyse .................................................................. 23
7.1 Grafische inspectie van de assumpties ........................................................................................24
7.2 Extreme outliers opsporen ............................................................................................................25
7.2.1 Studentized residuals ...........................................................................................................25
7.2.2 Cook’s distance ....................................................................................................................25
8 Hoofdstuk 8: Meervoudige regressieanalyse ................................................................................ 26
8.1 Multicollineariteit ..........................................................................................................................26
8.2 Modellen vergelijken .....................................................................................................................27
8.3 Meervoudige regressieanalyse......................................................................................................28
Mike Slangen Academiejaar 2015-2016 Pagina 1 van 30
,Samenvatting Statistiek B
9 Hoofdstuk 10: Regressieanalyse als Lingua Franca ...................................................................... 29
9.1 Gecentreerde variabelen...............................................................................................................29
9.2 Gestandaardiseerde variabelen ....................................................................................................29
9.3 Dummy regressie ..........................................................................................................................30
9.3.1 Dummyvariabelen .................................................................................................................30
9.3.2 Interactie-effect ....................................................................................................................30
Mike Slangen Academiejaar 2015-2016 Pagina 2 van 30
, Samenvatting Statistiek B
Hoofdstuk 1: Keuze van de meest gepaste analysetechniek
Van onderzoeksvraag naar keuze van analysetechniek.
1.1 STAP 1: Identificeren van variabelen en hun meetniveau
Nominaal / ordinaal meetniveau KWALITATIEF Categorisch / Factor
Interval / Ratio meetniveau KWANTITATIEF Numeriek / Continu
1.2 STAP 2: Verbanden tussen variabelen – teken onderzoeksvraag
Niet-causaal verband:
o In vraagstelling wordt gepeild naar samenhang:
Mike Slangen Academiejaar 2015-2016 Pagina 3 van 30
STATISTIEK B
Schakelprogramma
Opleidings- en onderwijswetenschappen
Academiejaar 2015 - 2016
Mike Slangen
,Samenvatting Statistiek B
Inhoud
1 Hoofdstuk 1: Keuze van de meest gepaste analysetechniek ........................................................... 3
1.1 STAP 1: Identificeren van variabelen en hun meetniveau............................................................... 3
1.2 STAP 2: Verbanden tussen variabelen – teken onderzoeksvraag ................................................... 3
1.3 STAP 3: Keuze analysetechniek ...................................................................................................... 5
2 Hoofdstuk 2: T-test ...................................................................................................................... 7
2.1 Independent samples design vs repeated measures design .......................................................... 7
2.1.1 Independent samples design.................................................................................................. 7
2.2 Interpretaties t-test ......................................................................................................................... 9
3 Hoofdstuk 3 – Anova.................................................................................................................. 11
3.1 Interpretaties.................................................................................................................................14
4 Kruistabellen ............................................................................................................................. 15
4.1 Kruistabel aanmaken ....................................................................................................................15
4.2 Kenmerken van samenhang .........................................................................................................16
4.3 Chi-kwadraat .................................................................................................................................16
5 Correlaties ................................................................................................................................ 18
5.1 Puntenwolk aanmaken .................................................................................................................18
5.2 Covariantie ....................................................................................................................................18
5.3 Significantie-toets correlaties........................................................................................................19
6 Hoofdstuk 6: Bivariate (lineaire) regressie.................................................................................... 21
7 Hoofdstuk 7: Assumpties bij lineaire regressieanalyse .................................................................. 23
7.1 Grafische inspectie van de assumpties ........................................................................................24
7.2 Extreme outliers opsporen ............................................................................................................25
7.2.1 Studentized residuals ...........................................................................................................25
7.2.2 Cook’s distance ....................................................................................................................25
8 Hoofdstuk 8: Meervoudige regressieanalyse ................................................................................ 26
8.1 Multicollineariteit ..........................................................................................................................26
8.2 Modellen vergelijken .....................................................................................................................27
8.3 Meervoudige regressieanalyse......................................................................................................28
Mike Slangen Academiejaar 2015-2016 Pagina 1 van 30
,Samenvatting Statistiek B
9 Hoofdstuk 10: Regressieanalyse als Lingua Franca ...................................................................... 29
9.1 Gecentreerde variabelen...............................................................................................................29
9.2 Gestandaardiseerde variabelen ....................................................................................................29
9.3 Dummy regressie ..........................................................................................................................30
9.3.1 Dummyvariabelen .................................................................................................................30
9.3.2 Interactie-effect ....................................................................................................................30
Mike Slangen Academiejaar 2015-2016 Pagina 2 van 30
, Samenvatting Statistiek B
Hoofdstuk 1: Keuze van de meest gepaste analysetechniek
Van onderzoeksvraag naar keuze van analysetechniek.
1.1 STAP 1: Identificeren van variabelen en hun meetniveau
Nominaal / ordinaal meetniveau KWALITATIEF Categorisch / Factor
Interval / Ratio meetniveau KWANTITATIEF Numeriek / Continu
1.2 STAP 2: Verbanden tussen variabelen – teken onderzoeksvraag
Niet-causaal verband:
o In vraagstelling wordt gepeild naar samenhang:
Mike Slangen Academiejaar 2015-2016 Pagina 3 van 30
