October Household Survey 1998 - South Africa

Abstract
---------------------------

The October Household Survey is an annual survey based on a survey of a large number of households (ranging from 16 000 in 1996 through to 30 000 in 1997 and 1998, depending on the availability of funding). It covers a range of development indicators, including unemployment rates (official and expanded), according to standard definitions of the International Labour Organisation (ILO).

Geographic coverage
---------------------------

The survey had national coverage.

Analysis unit
---------------------------

Households and individuals

Universe
---------------------------

The survey covered households and household members in households in the nine provinces of South Africa

Kind of data
---------------------------

Sample survey data

Sampling procedure
---------------------------

A sample of 20 000 households was drawn in 2 000 enumerator areas (EAs) (that is 10 households per enumerator area). A two-stage sampling procedure was applied and the sample was stratified, clustered and selected to meet the requirements of probability sampling. The sample was based on the 1996 Population Census enumerator areas and the estimated number of people from the administrative records of the 1996 population Census. The sampled population excluded all prisoners in prisons, patients in hospitals, people residing in boarding houses and hotels (whether temporary or semi-permanent). The sample was explicitly stratified by province, Transitional Metropolitan Council (TMC)and District Council (DC). A square root method was used for the allocation of the sample EAs to the explicit strata.

Within each explicit stratum the EAs were stratified by simply arranging them in geographical order by magisterial district and, within the magisterial district, by EA. The allocated number of EAs was systematically selected with probability proportional to size in each stratum. The measure of size was the estimated number of people in Each EA. A systematic sample of 10 households was drawn.

Mode of data collection
---------------------------

Face-to-face [f2f]

Research instrument
---------------------------

The data files in the October Household Survey 1997 (OHS 1997) correspond to the following sections in the questionnaire:
PERSON: Indivitual-level data from Section 1 and Section 4; BIRTHS: Data from Section 2; CHILDREN: Data from Section2; WORKER: Data from Section 3; MIGRANT: Data from Section 5; DEATHS: Data from Section 6; MIGRATION: Data from Section 7; DOMESTIC: Data from Section 8; HOUSE: Household-level data from Section 9

Errors in the marital codes in the original OHS 1998 questionnaire:
The questionnaire for the OHS 1998 originally provided by Statistics SA with the data files was incorrect. It was the OHS 1997 questionnaire with a OHS 1998 flap. The marital codes were different in the two surveys. In 1997, the codes for the variable Marital Status were:
1 Never married
2 Married - civil
3 Married - customary
4 Living together
5 Widowed
6 Divorced

In the 1998 survey, the codes for the variable Marital Status are:

1 Married - civil
2 Married - traditional (customary)
3 Living together
4 Widower/widow
5 Divorced/separated
6 Never married

DataFirst notified Statistics SA of this error on 13 July 2007 and they sent a corrected questionnaire. The correct questionnaire is version 2, available with the data since 2007.

Data appraisal
---------------------------

Errors in the marital codes in the original OHS 1998 questionnaire:

The questionnaire for the OHS 1998 originally provided by Statistics SA with the data files was incorrect. It was the OHS 1997 questionnaire with a OHS 1998 flap. The marital codes were different in the two surveys. In 1997, the codes for the variable Marital Status were:
1 Never married
2 Married - civil
3 Married - customary
4 Living together
5 Widowed
6 Divorced

In the 1998 survey, the codes for the variable Marital Status are:

1 Married - civil
2 Married - traditional (customary)
3 Living together
4 Widower/widow
5 Divorced/separated
6 Never married

DataFirst notified Statistics SA of this error on 13 July 2007 and they sent a corrected questionnaire. The correct questionnaire is version 2, available with the data since 2007.

摘要
---------------------------
十月家庭调查是一项年度调查，基于对大量家庭（从1996年的16,000户到1997年和1998年的30,000户，具体取决于资金的可获得性）的调查。调查涵盖了一系列发展指标，包括失业率（官方和扩展的），根据国际劳工组织（ILO）的标准定义。
地理覆盖范围
---------------------------
调查覆盖全国。
分析单位
---------------------------
家庭和个人
总体
---------------------------
调查覆盖了南非九个省份的家庭及其成员。
数据类型
---------------------------
样本调查数据
抽样程序
---------------------------
在2,000个调查员区域（EA）（即每个EA 10户家庭）中抽取了20,000户家庭的样本。采用了两阶段抽样程序，并对样本进行了分层、聚类和选择，以满足概率抽样的要求。样本基于1996年人口普查的调查员区域和1996年人口普查的行政记录中估计的人口数量。样本人口排除了所有监狱囚犯、医院病人、居住在寄宿学校和旅馆（无论临时还是半永久性）的人员。样本明确按省份、过渡性大都市委员会（TMC）和区议会（DC）分层。采用平方根法对样本EA的分配进行了分层。在每个明确分层内，EA按照司法管辖区和司法管辖区内的EA进行地理顺序排列。每个分层内分配的EA数量按规模成比例系统地选择。规模衡量标准是每个EA估计的人口数量。抽取了10户家庭的系统样本。
数据收集方式
---------------------------
面对面 [f2f]
研究工具
---------------------------
1997年十月家庭调查（OHS 1997）的数据文件对应于问卷的以下部分：
PERSON：第1部分和第4部分的个人层面数据；BIRTHS：第2部分的数据；CHILDREN：第2部分的数据；WORKER：第3部分的数据；MIGRANT：第5部分的数据；DEATHS：第6部分的数据；MIGRATION：第7部分的数据；DOMESTIC：第8部分的数据；HOUSE：第9部分的家庭层面数据
原始OHS 1998问卷婚姻代码中的错误：
南非统计局（Statistics SA）最初提供的数据文件中的OHS 1998问卷存在错误。它是带有OHS 1998封面的OHS 1997问卷。两个调查中的婚姻代码不同。1997年，变量婚姻状况的代码如下：
1 从未结婚
2 依法结婚
3 习俗结婚
4 同居
5 丧偶
6 离异
1998年调查中，变量婚姻状况的代码如下：
1 依法结婚
2 习俗结婚
3 同居
4 丧偶/寡妇
5 离异/分居
6 从未结婚
DataFirst于2007年7月13日通知了南非统计局这一错误，他们发送了修正后的问卷。正确的问卷版本为2，自2007年以来随数据提供。
数据评估
---------------------------
原始OHS 1998问卷婚姻代码中的错误：
南非统计局（Statistics SA）最初提供的数据文件中的OHS 1998问卷存在错误。它是带有OHS 1998封面的OHS 1997问卷。两个调查中的婚姻代码不同。1997年，变量婚姻状况的代码如下：
1 从未结婚
2 依法结婚
3 习俗结婚
4 同居
5 丧偶
6 离异
1998年调查中，变量婚姻状况的代码如下：
1 依法结婚
2 习俗结婚
3 同居
4 丧偶/寡妇
5 离异/分居
6 从未结婚
DataFirst于2007年7月13日通知了南非统计局这一错误，他们发送了修正后的问卷。正确的问卷版本为2，自2007年以来随数据提供。