Migration in South Africa 2001-2002 - South Africa

Abstract
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During 1999 the HSRC embarked on a self-funded multidisciplinary research project on the causes of migration in South Africa. The main purpose of the project was to analyse census and other secondary data and to undertake the necessary surveys with a view to determining the importance of economic and non-economic factors in the explanation of migration trends in South and southern Africa. The study highlighted the need for “purpose-made” data for the analysis of migration causes and patterns, which would be addressed to a large extent by sample surveys dealing specifically also with the social and psychological aspects of migration. To help address these issues a series of surveys was envisaged. The first of these would be aimed mainly at testing the utility of various items that would provide the required data for the migration research. A preliminary (initial) questionnaire survey among 911 households was was undertaken during the period 4 April to 25 June 2000 and the main survey was conducted in 2001-2002.

Geographic coverage
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National coverage

Analysis unit
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Units of analysis were households and individuals

Universe
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The survey covered households in South Africa

Kind of data
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Sample survey data [ssd]

Sampling procedure
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The 2001-2002 survey was based on a stratified, clustered random (complex) sampling design. The explicit strata used in the sampling design were the following: (a) census-based population group (African, coloured, Indian or white); (b) metropolitan/non-metropolitan location; (c) whether a so-called spatial development (SDI) area or not, and (d) census-based locality type (rural/urban). In non-metropolitan areas an implicit stratification of local government level (city, other local municipality or district municipality) was also used. Clustering took the form of randomly selecting (using systematic sampling) six households in each of the selected census enumerator areas (EAs) across the different strata.

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

Research instrument
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After a preliminary survey was undertaken in 2000 to evaluate the validity and potential reliability of 179 possible scale items for the questionnaire, with a view to reducing these items to an absolute minimum for the purpose of the main (2001/02) survey. The results of the initial survey, as well as provisional findings from an analyses of census data and other secondary data sources were used to finalise the questionnaire to be used in the main survey. The design was largely based on the questionnaire used in the initial survey, sans those items deemed not significant for the construction of scale items.

摘要
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在1999年，南非人类科学研究委员会（HSRC）启动了一项自筹资金的多学科研究项目，旨在探讨南非的移民原因。该项目的主要目标是分析人口普查和其他次级数据，并开展必要的调查，以确定经济和非经济因素在解释南及南非洲移民趋势中的重要性。研究强调了分析移民原因和模式所需的“定制”数据的重要性，这在很大程度上将由专门处理移民的社会和心理方面的样本调查来解决。为了解决这些问题，设想了一系列的调查。其中之一主要旨在检验提供所需数据的各种项目的有效性。在2000年4月4日至6月25日期间，对911户家庭进行了初步（初始）问卷调查，而主要调查则在2001-2002年进行。
地理覆盖范围
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全国覆盖
分析单位
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分析单位为家庭和个人
总体
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调查涵盖了南非的家庭
数据类型
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样本调查数据 [ssd]
抽样程序
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2001-2002年的调查基于分层、聚类随机（复杂）抽样设计。在抽样设计中明确使用的分层如下：（a）基于人口普查的群体（非洲人、有色人种、印度人或白人）；（b）大都市/非大都市位置；（c）是否为所谓的空间发展（SDI）区域，以及（d）基于人口普查的社区类型（农村/城市）。在非大都市地区，还使用了地方政府级别（城市、其他地方市政或地区市政）的隐含分层。聚类以在每个选定的基于人口普查的抽样区域（EA）内随机选择（使用系统抽样）六个家庭的形式进行。
数据收集方式
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面对面 [f2f]
研究工具
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在2000年进行初步调查以评估问卷中179个可能的项目尺度项的有效性和潜在可靠性之后，旨在为主（2001/02）调查减少这些项目到绝对最小值。初始调查的结果，以及从人口普查数据和其他次级数据源的分析中得出的初步发现，被用于最终确定主调查中使用的问卷。设计在很大程度上基于初始调查中使用的问卷，去除了那些被认为对构建尺度项不重要的项目。