Advantages of personal Interview:1.There are sample designs that can be implemented best by personal interview ( e, g, area probability samples).
2.Personal interview procedures are probably the most effective way of enlisting cooperation.
3. Advantages of interview questions probing for adequate answers accurately followings complex instructions or sequences are realized.
4.Multi method data collection including observation visual cues and self administered sections are feasible.
5.Report and confidence building are possible ( including any written reassurances that may be needed for porting very sensitive material).
6. Probably longer interviews can be done in person.