Summary
Samenvatting - Experimenteel onderzoek
- Course
- Institution
- Book
Samenvatting van het correlatieve en experimentele ondereel van de cursus basis onderzoeksmethoden en statistiek
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
Seller
FollowAR1998
Reviews received
Content preview
Basisonderzoek en statistiekSamenvatting
BOS – Deel: experimenteel
Hurk, A. van den (Anouk)
27-10-2020
,Inhoud
Causale relatie .............................................................................................................................. 2
Causale relatie.................................................................................................................................................... 2
Gerandomiseerd experiment ......................................................................................................................... 2
Onderzoeksvraag .............................................................................................................................................. 2
Stappenplan NHST - T-test .......................................................................................................... 3
Type I en II fouten......................................................................................................................... 5
Signitificantieniveau en type I fout............................................................................................................... 5
Power ................................................................................................................................................................... 5
Grootte van de steekproef.............................................................................................................................. 5
Puntschatting ..................................................................................................................................................... 5
Betrouwbaarheidsinterval .............................................................................................................................. 6
Validiteit ....................................................................................................................................... 6
Interne validiteit........................................................................................................................... 7
Bedreigingen interne validiteit ...................................................................................................................... 7
Replicatie ...................................................................................................................................... 8
Bayesiaanse hypothese analyse .................................................................................................. 9
Bayes factor........................................................................................................................................................ 9
Posterior Model Kansen (PMK’s) ................................................................................................................ 10
Bayesian updating .......................................................................................................................................... 10
Stappenplan Bayesiaanse hypothese analyse T-toets ............................................................. 11
Stappenplan NHST – Eenweg ANOVA ....................................................................................... 12
Post hoc toets............................................................................................................................. 14
Stappenplan Bayesiaanse – Eenweg ANOVA ............................................................................ 15
Informatieve hypothesen ............................................................................................................................. 15
Hoofd- en interactie effecten .................................................................................................... 17
Stappenplan NHST – Tweeweg ANOVA .................................................................................... 18
Stappenplan Bayesiaans – Tweeweg ANOVA ........................................................................... 20
Verschil NHST en Bayes ............................................................................................................. 22
, Causale relatie
Causale relatie
- Begrijpen hoe de sociale werkelijkheid in elkaar zit
- Beïnvloeden van werkelijkheid
- Wat is het effect van X op Y?
• Covariance = relatie
• Temporal precedence = voorafgaan aan..
• Internal validity = alternatieve verklaringen uitgesloten
Gerandomiseerd experiment
- Internal validity bewaken
- Groepen op basis van randomisatie
- De onderzoeker manipuleert 1 variablele
- Effect meten op de andere variabale
- Grootste kans dat in de groepen: de gemiddelde scores en spreiding in scores op alle
variabelen, zowel gemeten als ongemeten, bij aanvang vergelijkbar zijn
- Probleem bij kleine groepen: non-respons, relevante kenmerken niet gelijkmatig verdeeld
Causale variabele Gemeten variabele
Gemanipuleerde variabele Uitkomst variabele
Onafhankelijke variabele Afhankelijke variabele
Conditie Resultaat (effect op..)
X Y = effect meten, hangt dit af van x?
Control variabele
(control groep)
Onafhankelijke groepen = groepen mensen worden een variabele (hands / no-hands)
Onderzoeksvraag
Population = de groep mensen, over wie wil je iets zeggen?
Intervention = onafhankelijke variabele x groepen vergelijken
Comparison = welke groepen worden vergeleken?
Outcome = (gemeten) afhankelijke variabele
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AR1998. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.35. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62774 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 15 years now