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（政府视为安全的领土）

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被排除在调查框架之外的地区（即未纳入调查操作的地区），特别是在安哥拉，这些地区占国家总面积的35%。

当然，您可以合并城市和农村组成部分以得到“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视为安全的领土。该领土仅占全国人口的65%左右。值得注意的是，安哥拉的大部分安全领土为城市地区，而大部分非安全领土为农村地区。因此，样本在城市社区中的比例明显较高。

然而，由于安哥拉的大部分城市地区都是安全的，因此样本中的城市部分可以较为准确地代表整个城市安哥拉。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被调查样本覆盖，因此农村结果并不预期能像城市结果那样准确反映农村安哥拉。

总计，即城市和农村合并的结果，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。”}