Take the quiz test your understanding of the key concepts covered in the chapter. Try testing yourself before you read the chapter to see where your strengths and weaknesses are, then test yourself again once you’ve read the chapter to see how well you’ve understood.

1. Who is considered to be the ‘inventor’ of logistic regression?

Thomas Malthus

Alphonse Quetelet

Pierre-François Verhulst

Karl Pearson

Answer:

c. Pierre-François Verhulst

2. The logistic model is estimated by way of?

Ordinary least squares

Maximum likelihood estimation

Poisson distribution

Negative binomial distribution

Answer:

b. Maximum likelihood estimation

3. In logistic regression, what do we estimate for one each unit’s change in X?

The change in Y multiplied with Y

The change in Y from its mean

How much Y changes

How much the natural logarithm of the odds for Y = 1 changes

Answer:

d. How much the natural logarithm of the odds for Y = 1 changes

4. A total predicted logit of 0 can be transformed to a probability of?

0

0.5

1

0.75

Answer:

b. 0.5

5. The log likelihood is parallel to?

The t-test in OLS regression

The F-test in OLS regression

The standardized coefficient in OLS regression

The Wald test

Answer:

b. The F-test in OLS regression

6. In categorical variables, when all, or close to all with a given X-value has the same value on Y, we call this a problem of?

Discrimination

Multicollienarity

Autocorrelation

Prediction

Answer:

a. Discrimination

7. What makes the interpretation of conditional effects extra challenging in logistic regression?

It is not possible to model interaction effects in logistic regression

The results has to be raised by its natural logarithm

The conditional effect is dependent on the values of all X-variables

The maximum likelihood estimation makes the results unstable

Answer:

c. The conditional effect is dependent on the values of all X-variables

8. Which variant of logistic regression is recommended when you have a categorical dependent variable with more than two values?