Typically, it is possible to include a larger number of questions in a phone survey than in a mail survey since it takes less time to complete the survey over the phone.

Question

Quizplus · Accepted Answer

Phone surveys often need to be shorter to keep the respondent engaged and on the line, whereas mail surveys allow the respondent to complete the questionnaire at their own pace, potentially accommodating more questions.

Typically, It Is Possible to Include a Larger Number of Questions