Multiple Indicator Cluster Survey 2001 - Angola

Geographic coverage
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Only secured territory (territory that was regarded as secure by the Government)

Analysis unit
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- Households
- Individuals

Kind of data
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Sample survey data [ssd]

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

Data appraisal
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On Angola, the sample results doesn't represent the nation as a whole. This is because samples cannot represent areas that are excluded from the frame (i.e., not covered by the survey operations), especially if those areas comprise 35% of the country as was the case in Angola.

You may of course combine the urban and rural components together for a "total" but it has to be labelled properly (see below).

In putting out the results a statement such as the following should accompany the tables: "The survey estimates do not represent Angola as a whole because the sample was restricted to territory that was regarded as secure by the Government. That territory comprised only about 65 percent of the population. An important point to note is that most of the secured territory in Angola is urban, while most of the unsecured territory is rural. For this reason the sample is disproportionately larger in urban communities.

However, since most of the urban community in Angola is secure, the urban part of the sample is a fairly accurate representation of all of urban Angola. By contrast, the rural sample only represents the rural secured territory; since a large proportion of rural Angola was not covered by the survey sample, it is not expected that the rural results would reflect rural Angola as well as the urban results reflect urban Angola.

The totals, that is, urban and rural combined, represent what can be described as Angola-Secured Territory but not the nation as a whole.

We advice users to keep these points in mind when analyzing the data.

地理覆盖范围
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仅限于安全领土（政府认为安全的领土）
分析单元
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- 家庭
- 个人
数据类型
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样本调查数据 [ssd]
数据收集方式
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面对面 [f2f]
数据评估
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在安哥拉，样本结果并不能代表整个国家。这是因为样本无法涵盖框架之外的区域（即未被调查操作覆盖的区域），特别是在安哥拉，这些区域占国家面积的35%。当然，您可以合并城市和农村部分以获得“总计”，但必须正确标注（见下文）。
在发布结果时，应随表格附上如下声明：‘调查估计值并不能代表整个安哥拉，因为样本仅限于政府认为安全的领土。该领土仅占人口的约65%。值得注意的是，安哥拉的大部分安全领土为城市，而大部分非安全领土为农村。因此，样本在城市社区中的比例较大。
然而，由于安哥拉的大部分城市社区是安全的，样本中的城市部分相当准确地代表了整个安哥拉的城市地区。相比之下，农村样本仅代表农村安全领土；由于安哥拉大部分农村地区未包含在调查样本中，因此农村结果可能无法像城市结果那样准确反映农村安哥拉。
总计，即城市和农村的总和，可以描述为安哥拉安全领土，但并不代表整个国家。
我们建议用户在分析数据时牢记这些要点。’