Author Question: The null model in logistic regression: a. Predicts the odds of the outcome based on the entire ... (Read 79 times)

rachel9 · **on:** Jul 8, 2018

The null model in logistic regression:

a. Predicts the odds of the outcome based on the entire set of predictors
b. States the null hypothesis that all predictors are unrelated to the outcome
c. Is used as the perfect model in the Hosmer-Lemeshow test
d. Predicts the odds of the outcome based solely on the distribution of the outcome in the sample

Question 2

In the scenario described in the preceding question, what would the b coefficient for very low birthweight represent?

a. The effect of very low birthweight compared to low birthweight
b. The effect of very low birthweight compared to normal birthweight
c. The effect of very low birthweight compared to the other two categories, averaged
d. The effect of very low birthweight compared to the average of all categories