All questionnaires include this class of questions.
A) primary
B) secondary
C) product concept
D) demographic variables
E) participant observation

Question

Quizplus · Accepted Answer

Demographic variables are questions that ask about characteristics of the person being surveyed, such as age, gender, income, and education level. These questions are essential for understanding the demographics of the sample being surveyed and analyzing how different groups might respond differently to the survey questions.

All Questionnaires Include This Class of Questions