Omnibus Survey 1995, Round 1 - South Africa

Abstract
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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 HSRC conducted 2 Omnibus surveys in 1995. The February/March 1995 omnibus survey was undertaken over the period 27 February to 24 March 1995. The data from thus survey was available in May 1995. The fieldwork was done on a countrywide basis including all nine provinces.

Geographic coverage
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The survey had national coverage, including coverage of the 'homelands" of Ciskei and Venda.

The lowest level of geographic aggregation for the data is Magisterial district.

Analysis unit
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Units of analysis in the survey included individuals

Universe
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The universe included all household residents 18 years old or older

Kind of data
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Sample survey data [ssd]

Sampling procedure
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For the survey, the South African population of persons 18 years and older was stratified according to:
Province (Western Cape, Eastern Cape, Northern Cape, Orange Free State, Natal/KwaZulu, Eastern Transvaal, PWV, North Western Province, Northern Transvaal)
Socio-economic classification:
Rural areas in former self-governing and TBVC states
Squatter areas in former non-white urban (metro and non- metro areas)
Hostels and hotels
Former urban areas for coloureds
Former urban areas for a Asians
Former urban areas for blacks
Former urban (non- metro) areas for whites
Former urban (metro) areas for whites
Rural areas, excluding the former self-governing and TBVC states

The sample allocation to these strata was done roughly proportional to the adjusted 1991 populatio n census figures with a few exceptions, among which was to ensure a minimal provincial total of 120. Multistage stratified cluster (probability) sampling was used to draw the respondents with the adjusted 1991 population census figures as measure of size. Census enumerator areas and similar areas were used as the clusters in the pen-ultimate sampling stage, from which an equal number, viz. one or two by four households were drawn. All clusters were drawn with probability proportional to size, whilst households were drawn from the final clusters with equal probability (systematically). Respondents were drawn at random from qualifying household members. In addition, population of live-in domestic workers was sampled in relation to their residence in already drawn households.

Mode of data collection
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Face-to-face [f2f]

{'Abstract': '本调查为综合调查，每季度进行一次，旨在以低廉的成本为用户提供参与全国性调查的机会。众多客户的疑问被整合进一份问卷中。该问卷通常在全国范围内对2200名受访者进行概率抽样调查（南非全国范围）。1995年2月的综合调查包括两个独立的2200人的样本——一个样本使用蓝色问卷，另一个样本使用绿色问卷。HSRC在1995年进行了两次综合调查。1995年2月至3月的综合调查于1995年2月27日至3月24日进行。该调查数据于1995年5月可用。调查工作在全国范围内进行，包括所有九个省份。'}