Which of the following should be taken into account while preparing a questionnaire?
A. The purpose of research
B. Brevity of questions
C. Avoidance of leading questions
D. Questions that seek detailed information
E. Preference for double‐barrelled questions
Choose the correct answer from the options given below:
1
A, B and C only
2
B, C and D only
3
C, D and E only
4
A, D and E only