Table 4.

Advantages and Disadvantages of Using the Web Questionnaire for Obtaining Follow-Up Response, Black Women's Health Study, 2003–2008

Advantages	Disadvantages
Access to hard-to-reach participants in a mobile population	Participant's preference of a paper questionnaire over a Web questionnaire
Cost savings due to reduced postage and mail processing costs	Higher development costs for a Web questionnaire
Reduced survey processing time needed to record, enter, and review data	Limited to persons who have access to a computer or online network
Cost savings due to reduced processing time
Speed of response by participants
Reduced likelihood of coding or scanning errors
Elimination of multiple responses to a single-response question
Fewer incomplete questions
Easy access in international locations
Immediate access to data by investigators