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samenvatting H9 research methods of the behavioral sciences

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Samenvatting grondslagen van wetenschappelijk onderzoek. HS9 uit research methods of the behavioral sciences (experimental designs: within-subjects design). 1ste bach klinische psychologie

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GRONDSLAGEN VAN
WETENSCHAPPELIJK ONDERZOEK
HOOFDSTUK 9 – WITHIN-SUBJECTS DESIGN




Within-subjects experiments and internal validity
Kenmerken van within-subjects designs
Within subjects experimental design/repeated measures experimental
design = vergelijkt 2 of meer verschillende behandelcondities door
dezelfde groep individuen te observeren of te meten in alle
behandelcondities die worden vergeleken.




Bedreigingen voor de interne validiteit van een within-subjects design

2 belangrijke bronnen van mogelijke verwarring voor een within-subjects
design:

1. Verwarring door omgevingsvariabelen
2. Verwarring door tijdgerelateerde variabelen

Vijf tijdgerelateerde bedreigingen voor interne validiteit:

1. Geschiedenis (History)
= gebeurtenissen of veranderingen in de tijd die buiten het
onderzoek plaatsvinden
2. Volwassenwording / rijping (Maturation)
= alle systematische veranderingen in de fysiologie of
psychologie van de deelnemers die optreden tijdens een onderzoek
en de scores van de deelnemers beïnvloeden


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November 7, 2025
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