JoHo kan jouw hulp goed gebruiken! Check hier de diverse bijbanen die aansluiten bij je studie, je competenties verbeteren, je cv versterken en je een bijdrage laten leveren aan een mooiere wereld
Week 4: Logistic Regression Analysis (LRA)LRA can be used when the dependent variable (Y) is binary and the predictors (X1, X2) interval level (or binary). The research question is: Can Y be predicted fromX1and/orX2?Example: Can the passing (1) or failing (0) the MVDA exam (Y) be predicted from the student’s grade on the psychometrics exam (X)?Is there a significant association between grade and passing/failing the exam? (report test statistic, df, and p value)?Here, we look at the Variables in the Equation table at the Wald of the grade. If it’s significant, then yes there is a significant association. An example of how this can be reported: Yes, Wald χ2(1) = 7.090,p=.006Write down the logistic regression equationFor example:if the constant B is -4.200the grade B is: .671Then the equation looks like this:(From now on, sorry for the weird format of the formulas)For what grade is the probability of passing the MVDA exam equal to the probability of failing the MVDA exam?Passing= 50%Failing=50%P=1/2 = In order for to be 1, -4.200+ .671(Grade) has to be equal to 0. This is because e to the power of 0 is 1. So, -4.200 + 0.671(g)=00.671(g)=4.200g=6.259Therefore, the grade where there is an equal chance for passing and failing is 6.259.Calculate the probabilities and odds of passing for X= 0,5, 10X P Odds (rounded up) 0 =0.0148 = = 0.015 5 = 0.3005 = 0.429 10 = 0.9248 =11.5 How to calculate the odds ratio?Example: X P Odds Odds ratio1 .0285 .02931 =1.958 2 .0543 .0574 1.958Therefore, if X increases 1 unit, the odds are...
The full content is only visible for Logged in World Supporters.
More benefits of joining WorldSupporter
- You can use the navigation and follow your favorite supporters
- You can create your own content & add contributions
- You can save your favorite content and make your own bundles
- See the menu for more benefits
Full access to all pages on World Supporter requires a JoHo membership
- For information about international JoHo memberships, read more here.
Support JoHo and support yourself by becoming a JoHo member
Become a Member
- for free to follow other supporters, see more content and use the tools
- for a small donation by becoming a member to see all content
Why create an account?
- Your WorldSupporter account gives you access to all functionalities of the platform
- Once you are logged in, you can:
- Save pages to your favorites
- Give feedback or share contributions
- participate in discussions
- share your own contributions through the 11 WorldSupporter tools
Add new contribution