گزینههای پاسخ: Direct supervision, Back check in person by supervisor, Back check by telephone by supervisor or the central office, Not subject to back check, Review of Audio, Review of audio and back check by phone
گزینههای پاسخ: The respondent understood all of the questions, The respondent understood most of the questions, The respondent understood most of the questions but with some help from me, The respondent had difficulty understanding most of the questions, even with help from me
گزینههای پاسخ: They did not interfere at all, There were some comments and offering of their opinions, There was substantial involvement, leading to discussions about survey responses, There was so much interference; it was almost impossible to conduct the interview, No other people were present at the interview