High Frequency Phone Survey on COVID-19 2021, Round 3 - Solomon Islands

Abstract
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A strong evidence base is needed to understand the socioeconomic implications of the coronavirus pandemic for the Solomon Islands. High Frequency Phone Surveys (HFPS) are set up to understand these implications over the years. This data is the third of the five planned rounds of mobile surveys.
Two rounds of the HFPS are already completed in June 2020 (Round 1) and Dec 2020-Jan 2021 (Round 2). Round 3 interviewed 2,503 households across the country between 29th June 2021 and 11th Aug 2021, on topics including Vaccines of COVID-19, Employment & Income, Food security, Coping strategies, Health, and Public trust and security. Telephone interviews were conducted through a Solomon Islands call center set up by Tebbutt Research.

Geographic coverage
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Urban and rural areas of Solomon Islands.

Analysis unit
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Household and Individual.

Universe
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Respondents must be at least 18 years of age to participate the survey.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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As the objective of the survey was to measure changes as the pandemic progresses, Round Three data collection sought to re-contact all 2,882 households contacted in Round Two. The protocols for re-contact were a maximum of 3 attempts per caller shift, spaced between 1.5 and 2.5 hours apart depending on whether the phone was busy or there was no answer, and 15 attempts in total. Of the Round Two households, 1,182 were successfully re-contacted.

Honiara was over-represented in the sample (accounting for 36.9 percent of the sample). Compensating factors for these differences were developed and included in the re-weighting calculations. Due to the limited sample sizes outside of Honiara, most results are disaggregated into only three geographic regions: Honiara, other urban areas, and rural areas.

To reach the target sample size of at least 2500 households, 980 new replacement households were added to the World Bank survey. The final sample of completed interviews was 2,503. The employment questions were asked for both the respondent and the household head by proxy (if different from the respondent), yielding a total sample size for the individual-level employment analysis of 3,188.

Further information regarding weighting can be found in the HFPS Round One and HFPS Round Two reports, which followed the same weighting methodology. Because of considerable attrition between rounds, most statistics showing changes through time reflect data from repeated cross sections rather than panels.

Mode of data collection
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Computer Assisted Telephone Interview [cati]

Research instrument
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The questionnaire - that can be found in the External Resources of this documentation - was developed both in English and in Solomons Pijin.

The survey instrument for the third round consisted of the following modules:
-Basic information,
-Vaccines of COVID-19
-Employment & ESP,
-Income,
-Food access and food security,
-Coping strategies,
-Health
-Public trust and security,
-and Assets and wellbeing.

Cleaning operations
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At the end of data collection, the dataset was cleaned by the World Bank team. This included formatting, and correcting results based on monitoring issues, enumerator feedback and survey changes. Data was edited using STATA.

The data is presented in two data sets: household data set and individual data set. The total number of observations in the household data set is 2,503 and 3,188 in the individual data set. The individual data set mentions the employment information for all the household members, whereas the household data set contains information about vaccines of COVID-19, food access and food security, coping strategies, health, public trust and security, and assets.

Response rate
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Response rate for returning households: 41.01%.

Data appraisal
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Imputation was done for missing education values when calculating the individual weights

摘要
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为了深入理解新冠病毒大流行对所罗门群岛社会经济影响的深远意义，迫切需要建立一个坚实的证据基础。为此，高频率电话调查（HFPS）被设立以在数年间追踪这些影响。本数据集是五轮计划中的第三轮移动调查数据。
在2020年6月（第一轮）和2020年12月至2021年1月（第二轮）已成功完成两轮HFPS调查。第三轮调查于2021年6月29日至8月11日对全国范围内的2,503个家庭进行了访谈，涉及的主题包括COVID-19疫苗、就业与收入、粮食安全、应对策略、健康以及公众信任与安全。电话访谈由Tebbutt Research建立的所罗门群岛呼叫中心负责进行。
地理覆盖范围
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所罗门群岛的城市和农村地区。
分析单位
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家庭与个人。
总体
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参与调查的受访者必须年满18岁。
数据类型
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样本调查数据 [ssd]
抽样程序
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鉴于调查的目的是衡量疫情进展中的变化，第三轮数据收集旨在重新联系第二轮中接触到的所有2,882个家庭。重新联系的标准流程为每位呼叫者最多3次尝试，间隔时间为1.5至2.5小时，具体取决于电话是否忙碌或无人接听，总计15次尝试。在第二轮家庭中，1,182个家庭成功重新联系。
霍尼亚拉在样本中过度代表（占样本的36.9%）。为补偿这些差异，开发了相应的补偿因素，并纳入了重新加权计算中。由于霍尼亚拉之外样本量有限，大多数结果仅按三个地理区域进行细分：霍尼亚拉、其他城市地区和农村地区。
为了达到至少2,500个家庭的样本目标，向世界银行调查中增加了980个新的替代家庭。最终完成的访谈样本为2,503。对于就业问题，对受访者及其家庭负责人（如果与受访者不同）进行代理询问，从而在个人层面的就业分析中，总样本量为3,188。
有关加权的进一步信息，可在HFPS第一轮和第二轮报告中找到，它们遵循了相同的加权方法。由于各轮之间损失较大，大多数反映时间变化的统计数据均来自重复的横截面数据，而非面板数据。
数据收集方式
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计算机辅助电话访谈 [cati]
研究工具
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问卷（可在本文档的外部资源中找到）是在英语和所罗门群岛皮金语中开发的。
第三轮的调查工具包括以下模块：
- 基本信息，
- COVID-19疫苗，
- 就业与ESP，
- 收入，
- 粮食获取与粮食安全，
- 应对策略，
- 健康，
- 公众信任与安全，
- 以及资产与福祉。
数据清理操作
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数据收集结束后，世界银行团队对数据集进行了清理。这包括格式化，并根据监控问题、调查员反馈和调查变化纠正结果。数据编辑使用STATA进行。
数据以两个数据集呈现：家庭数据集和个人数据集。家庭数据集中的观测总数为2,503，个人数据集为3,188。个人数据集提及所有家庭成员的就业信息，而家庭数据集包含有关COVID-19疫苗、粮食获取与粮食安全、应对策略、健康、公众信任与安全以及资产的信息。
响应率
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返回家庭的响应率为41.01%。
数据评估
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在计算个人权重时，对缺失的教育值进行了插补。