Lab 2: Feedback and Discussion
2025-04-30
Notes from me and the TAs
- Using
ANY_HARDSHIP or MULT_HARDSHIPS
- If you look at the User Guide, this involves information from food security
- Using “Survey Questions”
- Interpreting estimated ORs
- If your main variable had >6 categories I’m sorry if you interpreted every single one
- Make sure you are taking the inverse logit to find the predicted probability
- Make sure you are plotting the predicted probability, not the ORs
- The TAs left comments in the rubric! Please look at them!
Get into groups of 2-4
- No more than 4!
- Try to group with people with whos you do not already work on labs
- Introduce yourself if you do not know each other
- Share you html documents with each other (email, airdrop, etc.)
Introduce Research Question
- Share your research question with each other!
- Should be using the same outcome + your main variable
- Share your other variables
Double check code for variables
- Did everyone code their variables correctly?
- If you changed something to a factor, does it have the correct levels?
Discuss your confounders/effect modifiers
- Does not need to have a causal framework
- Do you think we need to adjust for certain variables?
- Do you think there will be interactions?
- If you think there are interactions, try to narrow it down to 1-2 variables
Contingency tables + bivariate analysis
- Based on your reasoning in the previous activity and the tables/plots, do you think we need to adjust for any variables?
- What trends are you seeing?
- Do you have any cells with low counts?
Simple logistic regression
- Does everyone have the correct interpretations of the estimated odds ratios?
- What’s your reference group?
- What trends are you seeing?
Predicted Probabilities
- Let’s just check each other’s code and probabilities
- What would your predicted probabilities look like if you had a confounder? effect modifier?