Afrobarometer Survey 2017, Round 7 - Nigeria

Abstract
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The Afrobarometer is a comparative series of public attitude surveys that assess African citizen's attitudes to democracy and governance, markets, and civil society, among other topics. The surveys have been undertaken at periodic intervals since 1999. The Afrobarometer's coverage has increased over time. Round 1 (1999-2001) initially covered 7 countries and was later extended to 12 countries. Round 2 (2002-2004) surveyed citizens in 16 countries. Round 3 (2005-2006) 18 countries, Round 4 (2008) 20 countries, Round 5 (2011-2013) 34 countries, and Round 6 (2014-2015) 36 countries. The survey covered 34 countries in Round 7 (2016-2018).

Geographic coverage
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National coverage.

Analysis unit
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Individual

Universe
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Citizens of Nigeria who are 18 years and older

Kind of data
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Sample survey data [ssd]

Sampling procedure
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Sample size: 1,600
Sampling frame: 2006 Population and Housing Census of the Federal Republic of Nigeria
Sample design: Nationally representative, random, clustered, stratified, multi-stage area probability sample
Stratification: Region and urban-rural location
Stages: PSUs (from strata), start points, households, respondents
PSU selection: Probability proportionate to population size (PPPS)
Cluster size: 8 households per PSU
Household selection: Randomly selected start points, followed by walk pattern using 5/10 interval
Respondent selection: Gender quota filled by alternating interviews between men and women; respondents of appropriate gender listed, after which household member draws a numbered card to select individual

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

Research instrument
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The Round 7 questionnaire has been developed by the Questionnaire Committee after reviewing the findings and feedback obtained in previous Rounds, and securing input on preferred new topics from a host of donors, analysts, and users of the data. As in previous Rounds, about two-thirds of the items from the Round 6 questionnaire remain the same, and about one-third are new items. In identifying new survey topics, the Questionnaire Committee sought to align the instrument with the global development agenda by incorporating topics that speak to the Sustainable Development Goals (SDGs) that were adopted by the United Nations General Assembly in 2015. Some of the new survey topics in the R7 questionnaire include: Safety and Security; State capacity; Migration; Closing spaces; Inclusion; Climate change and, the Middle class.

The questionnaire consists of three parts:
1. Part 1 captures the steps for selecting households and respondents, and includes the introduction to the respondent and (pp.1-4). This section should be filled in by the Fieldworker.
2. Part 2 covers the core attitudinal and demographic questions that are asked by the Fieldworker and answered by the Respondent (Q1 – Q100).
3. Part 3 includes contextual questions about the setting and atmosphere of the interview, and collects information on the Fieldworker. This section is completed by the Fieldworker (Q101 – Q123).

Response rate
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Outcome rates:
- Contact rate: 100%
- Cooperation rate: 98.0%
- Refusal rate: 1.0%
- Response rate: 98.0%

Sampling error estimates
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+/- 2% at 95% confidence level

摘要
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非洲晴雨表是一项比较性的公共态度调查系列，旨在评估非洲公民对民主与治理、市场以及公民社会等议题的态度。自1999年以来，调查以定期间隔进行。非洲晴雨表的覆盖范围随着时间的推移而扩大。第1轮（1999-2001年）最初涵盖7个国家，后来扩展至12个国家。第2轮（2002-2004年）调查了16个国家的公民。第3轮（2005-2006年）调查了18个国家，第4轮（2008年）调查了20个国家，第5轮（2011-2013年）调查了34个国家，第6轮（2014-2015年）调查了36个国家。第7轮（2016-2018年）调查了34个国家。
地理覆盖范围
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全国性。
分析单位
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个体。
总体
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尼日利亚18岁及以上的公民。
数据类型
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样本调查数据 [ssd]。
抽样程序
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样本量：1,600。
抽样框架：2006年尼日利亚联邦共和国人口和住房普查。
样本设计：全国代表性、随机、分层、多阶段区域概率样本。
分层：地区和城乡位置。
阶段：抽样单元（从层中）、起始点、家庭、受访者。
抽样单元选择：按人口规模成比例概率抽样（PPPS）。
聚类大小：每个抽样单元8户家庭。
家庭选择：随机选择起始点，随后使用5/10间隔的行走模式。
受访者选择：通过交替访谈男女，以性别配额填补；列出合适性别的受访者，然后家庭成员抽取编号卡片以选择个人。
数据收集方式
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面对面 [f2f]。
研究工具
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第7轮问卷由问卷委员会在审查前几轮的调查结果和反馈后制定，并从众多捐助者、分析师和数据使用者那里获取对新主题的输入。与前几轮一样，约三分之二的条目来自第6轮问卷，约三分之一的条目是新的。在确定新的调查主题时，问卷委员会力求使工具与全球发展议程保持一致，通过纳入与2015年联合国大会通过的可持续发展目标（SDGs）相关的主题。R7问卷中的部分新调查主题包括：安全和保障；国家能力；移民；空间封闭；包容；气候变化和中等阶级。
问卷由三个部分组成：
1. 第1部分记录了选择家庭和受访者的步骤，包括受访者的介绍（第1-4页）。本部分应由调查员填写。
2. 第2部分涵盖了调查员提问并由受访者回答的核心态度和人口统计问题（Q1 – Q100）。
3. 第3部分包括关于访谈环境和氛围的背景问题，并收集关于调查员的信息。本部分由调查员完成（Q101 – Q123）。
响应率
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结果率：
- 联系率：100%。
- 合作率：98.0%。
- 拒绝率：1.0%。
- 响应率：98.0%。
抽样误差估计
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在95%的置信水平下，±2%。