Question

Which of the following statements is NOT correct?

a. When we choose nominal coding, we need to assign one of the choices to be the reference
b. When considering gender, male has to be 0 and female has to be 1
c. When considering gender, we can choose either male or female as the reference case
d. When we choose ordinal coding, outcomes must have an inherent order that we can assign numerical values to

Answer 1

The statement that is NOT correct is option c: When considering gender, we can choose either male or female as the reference case.

Step-by-step explanation:

The statement that is NOT correct is option c: When considering gender, we can choose either male or female as the reference case. In nominal coding, we need to assign one of the choices as the reference, so one choice needs to be designated as the reference category. In the case of gender, it is common to choose male as the reference category and assign it the numerical value of 0, and female as the other category with the numerical value of 1. This creates a binary variable with the values 0 and 1, representing male and female, respectively.