IDASA Opinion Survey 1998 - South Africa

Abstract
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The IDASA Opinion Survey was a series of opinion polls conducted prior to the 1999 election. They aimed to provide as complete a picture as possible of South African's views of the political, social and economic developments in the country since 1994. The survey was run by IDASA, Markinor and the SABC, along with the Electoral Institute of South Africa to increase credibility of the results and to utilise the best range of data collection and analysis expertise available.

Several key findings of the surveys had important impacts on the electoral process: The surveys confirmed the existence of a large proportion of citizens who lacked the correct identity documents to register. The increased public debate after the release of these results was followed by an extension of the registration process as well as the creation of Temporary Registration and an intensified public advertising campaign. The results helped identify the issues that ordinary voters think are most important (ie job creation, crime-reduction, education, housing, the economy and health care). This helped re-orient the way that the media covered the campaign and focussed government and opposition attention on these key issues. The surveys also revealed the existence of quite a sophisticated electorate and who differentiate between a range of dimensions of political performance and who look to real-world events such as the economy, government performance, and how the country is doing to help them make political choices.

Geographic coverage
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The survey has national coverage.

Analysis unit
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Households and individuals

Universe
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The universe for the survey was all adult South Africans who would be of voting age in 1999.

Kind of data
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Sample survey data

Sampling procedure
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The sample was drawn using a multi-stage, area stratified probability sampling methodology. The sample was stratified by province, population group and community size (metro, city, large town, small town, village and rural). The metropolitan areas were also stratified into "Formal" and "Informal" settlements, to ensure good representation. All qualifying members of a household were listed and one respondent selected randomly. Three attempts were made to interview this person, before substitution with another randomly selected household. 14% of originally selected respondents refused to be interviewed. The sample was representative of the universe from which it was selected. Results can, therefore, be projected to the universe (South Africa as a whole).

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

摘要
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IDASA 意见调查是在1999年选举前夕进行的一系列民意调查。其旨在尽可能全面地描绘自1994年以来南非人民对国家政治、社会和经济发展的看法。该调查由 IDASA、Markinor 和南非广播公司（SABC）联合开展，并得到南非选举研究所的支持，以提高结果的可信度，并充分利用可用的最佳数据收集和分析专业知识。

调查的几个关键发现对选举过程产生了重要影响：调查证实，存在大量公民缺乏注册所需的正确身份证件。这些结果发布后，公众对此展开了激烈的讨论，随后注册流程得到延长，并创建了临时注册机制，同时加强了公众宣传活动。这些结果有助于识别普通选民认为最重要的议题（例如，创造就业机会、降低犯罪率、教育、住房、经济和医疗保健）。这有助于重新调整媒体对竞选活动的报道方式，并使政府和反对派将注意力集中在这些关键议题上。调查还揭示了选民群体的复杂性，他们能够区分政治表现的多个维度，并参考现实世界事件，如经济、政府表现以及国家的发展状况来帮助他们做出政治选择。

地理覆盖范围
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该调查具有全国性覆盖范围。
分析单元
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家庭和个人
总体
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调查的总体是所有1999年将具备投票年龄的南非成年人。
数据类型
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样本调查数据
抽样程序
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样本采用多阶段、区域分层概率抽样方法抽取。样本按照省份、人口群体和社区规模（都市、城市、大型城镇、小型城镇、村庄和农村）进行分层。都市地区还分为“正式”和“非正式”定居点，以确保良好的代表性。列出所有符合条件的家庭成员，并随机选择一位受访者。在三次尝试采访该受访者未果后，将用另一位随机选择的家庭成员替换。最初选定的14%的受访者拒绝接受采访。样本代表了所选总体的代表性。因此，结果可以推广到整个总体（即整个南非）。
数据收集方式
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面对面 [f2f]