The face-to-face interview, also called an in-person interview, has continued to be the best form of data collection when one wants to minimize nonresponse and maximize the quality of the data collected. The main advantage of the face-to-face interview is the presence of the interviewer, which makes it easier for the respondent to either clarify answers or ask for clarification for some of the items on the questionnaire. At Rahbar Bazaar the F2F is done by two methods of Pen & Paper and CAPI (Computer-Assisted Personal Interviewing). 

capi vahid