Flashcards
Oefenvragen IRM
[Show more]
Preview 5 out of 12 Flashcards
What are the assumptions of ANOVA
What are the assumptions of ANOVA
(1) Check if the observations are independent
(2) Check if homoscedasticity is met. This is done by checking if the Levene's test is > 0.0*
(3) Check if the dependent variable is normally distributed**
* if Homoscedasticity is not met check (1) if the treatment groups are similar or (2) transform the DV with a logarithm (3) adjust the cut off
** If normalitaty is not met, check (1) if the sample size if big enough (30 ) or transform the DV so it more symmetric.
What are the assumptions of Cluster Analysis?
What are the assumptions of Cluster Analysis?
No hard statistical assumptions, but to subjective ones to keep in mind:
(1) Representativeness
(2) Multicollinearity: An overlap between variables is not per se an issue. Keep in mind that if you put both variables in the analysis, these variables will get more magnitude with them.
What are the assumptions of Logistic Regression
What are the assumptions of Logistic Regression
(1) Dependent / outcome variable has only two groups
(2) Robust to deviations from multivariate normality and homoscedasticity
(2) No high correlations between independent variables
(3) The outcome is a probability and must lie between zero and one
What are the assumptions of Conjoint Analysis
What are the assumptions of Conjoint Analysis
(1) Check overfitting: Respondents only give a few answers per case and therefore it's hard to get real parameters
(2) Garbage in Garbage out (GIGO) If data are badly collected, the results won't matter to.
What are the assumptions of MDS
What are the assumptions of MDS
(1) Metric vs Non-metric MDS
(2) Homogeneity: dimensionality, time, importance?*
* If you make map at one point of time, it may be very different some time later.
Flip
Seller
Follow
PieterZuijdwijk
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 PieterZuijdwijk. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.24. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
58426 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now