MANAGEMENT

Detailed explanation-1: -Conducting mail surveys can result in nonresponse error, which occurs when the potential participant is unwilling to participate or impossible to contact. Nonresponse can result in a reduction in precision of the study and may bias results.

Detailed explanation-2: -A major disadvantage of a mail survey is the length of the field period that is required to gain a reasonably high response rate, due to the multiple follow-up mailings this requires.

Detailed explanation-3: -Email surveys have always been one of the best methods of conducting survey research as they provide higher response rates compared to most other methods. Email surveys are extremely cost-efficient and require minimum resources.

Detailed explanation-4: -Respondents may not feel encouraged to provide accurate, honest answers. Respondents may not feel comfortable providing answers that present themselves in a unfavorable manner. Respondents may not be fully aware of their reasons for any given answer because of lack of memory on the subject, or even boredom.