Logistic Regression Flashcards
1
Q
What is key about categorical IVs in logistic regression?
A
They must be dichotomous, or dummy coded, but SPSS will do this for you.
2
Q
What is this test actually predicting?
A
The probability of participants achieving a certain outcome (1) or not (0).
3
Q
What is the symbol for the exponential function in SPSS?
A
EXP(?).
4
Q
What should you always double check before interpreting analysis?
A
The way variables have been AKA which thing is 1 or 0.
5
Q
Give 2 key considerations about the Nagalkerke R squared.
A
It is less conservative so requires a large sample, and it can range from 0 to 1.
6
Q
Which coefficient indicates the effect of a one unit change in an IV on the In(Odds)?
A
B.
7
Q
Which coefficient indicates the effect of a one unit change in an IV on the odds ratio?
A
Exp(B).
