In each country, the organisation is either a commercial market research firms (in most countries), or a group within a university (in Indonesia and Egypt). So, most of the credit for the WAS survey data should go to the following organisations:
In each country, the interviewing organisation has been responsible for almost all aspects of the WAS surveys, except for choosing the questions. Each organisation hired interviewers, supervisors, and typists (except Brazil, which was typed by John Simister), and carried out various checks on the data. Each of the agencies also chose the sample, using methods standard in that country; in each case, ‘cluster sampling’ was used (this means choosing a location at random, and carrying out several interviews in that street or neighbourhood). The locations of interviews were generally chosen by negotiation between the fieldwork agency and John Simister. All interviews were carried out in or near the respondent’s home.