CEVAP:

Once a questionnaire has been developed, it is important to determine whether respondents are interpreting questions as intended and whether the order of questions may influence responses. For this purpose, a pretest is conducted using small sample of the survey population. Pretesting finds out the unpredictable difficulties in the layout of the questionnaire and in the clarity of wording. Hence, the problems determined in the pretesting can then be corrected before the research is begun.