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ABSTRACT: An omnibus survey is done quarterly and its purpose is to give clients an opportunity to participate in a national survey at low cost. A number of clients’ questions are combined into one questionnaire. This questionnaire is usually administered to probability sample of 2 200 respondents in the whole country (South Africa). The 1995 February omnibus consisted of two separate samples of 2 200 each – one sample having a blue questionnaire and the other sample having a green questionnaire. The September 1995 omnibus survey was undertaken over the period 04 September to 06 October 1995. The data from this survey was available in December 1995. The fieldwork was done on a countrywide basis including all nine provinces. Interviewers specifically trained in personal interviewing collected the data. The respondents were scientifically selected, and interviewed at home. The interviews were conducted after hours to ensure that the scientifically drawn person was present. If the drawn person was not home during the first visit, but was available during the fieldwork period, an appointment was made and the person concerned revisited. If nobody in the household qualified, or was available during the fieldwork period, the household was substituted. The questions in the questionnaire were printed in both English and Afrikaans. During training these were translated into he relevant languages of the Black fieldwork areas. Interviews were conducted in the respondent’s choice of language. The respondent also had to be part of the scientifically drawn household, and be available during the fieldwork period. Substitution of the visiting point was only allowed for specified reasons.
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