Interviewers, who usually hold a first degree in social science, are trained in a five-day training workshop immediately prior to fieldwork.

Teams of four interviewers travel together to the field under the leadership of a field supervisor. It is the supervisor’s job to ensure quality control of survey returns on a daily basis.

Interviews usually take about one hour and only proceed after respondents have given informed consent. Strict confidentiality is required in handling survey returns.

Interviews are conducted in the following languages:

Benin:
French, Fon, Adja, Bariba, Dendi, Yoruba, Otamari, Peulh

Botswana:
English, Setswana

Cape Verde:
Creole, Portuguese

Ghana:
English, Akan, Ewe, Ga, Dagbani

Kenya:
English, Kiswahili, Kamba, Kikuyu, Kimeru, Kisii, Luhya, Luo, Somali, Turkana

Lesotho:
English, Sesotho

Madagascar:
Malagasy Ofisialy, Malagasy Fitenim-Paritra

Malawi:
English, Chichewa, Chiyao, Chitumbuka

Mali:
Frenchm Bambara, Sonrhaï, Tamasheq, Peuhl

Mozambique:
Portuguese, Emakhuwa, Xichangana, Cisena, Cinyanja, Echuwabu, Cinyungwe

Namibia:
English, Afrikaans, Oshiwambo

Nigeria
English, Hausa, Yoruba, Igbo, Pidgin, Tiv, Ibibio, Ijaw

Senegal:
French, Wolof, Pulaar, Serer

South Africa:
Afrikaans, English, Xhosa, North Sotho, South Sotho, Setswana, Swazi, Shangaan, Zulu

Tanzania:
Kiswahili

Uganda:
English, Luganda, Lusoga, Luo, Ruyankole, Rutoro, Rukiga, Ateso, Lugbara

Zambia:
English, Chibemba, Chinyanja, Chitonga, Silozi

Zimbabwe:
English, Chishona, Sindebele