COVID-19 High Frequency Phone Survey of Households 2020-2022 - Cambodia

Abstract
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To monitor the socioeconomic impacts of the coronavirus disease 2019 (COVID-19) pandemic and inform policy responses and interventions, the COVID-19 High-Frequency Phone Survey (HFPS) of households was designed as part of a World Bank global initiative. For Cambodia, a total of 5 survey rounds are planned, with households being called back every 1 to 2 months. This allows for the impact of the pandemic to be tracked as it unfolds and provides data to the government and development partners in near real-time, supporting an evidence-based response to the crisis.

In June 2020, Cambodia launched a Cash Transfer Program to support poor and vulnerable households during COVID-19. To more closely monitor the impact of COVID-19 among poor and vulnerable households in Cambodia and the impact of the Cambodia's Cash Transfer Program for Poor and Vulnerable Households during COVID-19, a sample of 1,000 IDPoor households was drawn for the phone survey from the beneficiary list of the conditional cash transfer for pregnant women and children under 2.

The questionnaire covers a series of topics, such as knowledge of Covid-19 and social behavior, access to food, food insecurity, impact of the Covid-19 on income sources and coping mechanisms, access to social assistance, and impact of Covid-19 on economic activity. A modular approach is used in the questionnaire design, which allows for modules to be dropped and/or added in different waves/rounds of the survey. The questionnaire is designed to be administered between 20 to 25 minutes.

Data collection for the first round started in June 2020. The survey is implemented using Computer Assisted Telephone Interviewing.

Geographic coverage
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National coverage and 5 geographical regions (Phnom Penh and other urban areas, Plains, Tonle Sap, Coastal, Plateau and Mountains).

Analysis unit
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- Households
- Individuals

Universe
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The survey covered all de jure households (with a phone number) excluding prisons, hospitals, military barracks, and school dormitories.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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The beneficiary list of the conditional cash transfer program for pregnant women and child under 2 was assigned into 5 strata i.e. Phnom Penh and other urban areas, Plain, Tonle Sap, Coastal, Plateau and Mountain. The sample was randomly selected with proportional to the size of the IDPoor households in each strata. The phone survey successfully interviewed 984 households in June (Round 1). In August (Round 2), 784 households have been re-interviewed and 271 replacement households were added. Of these, 841 were successfully reached again in October (Round 3), with 527 interviewed in all three rounds. In December, 1,277 households were successfully interviewed, of which 945 households were re-contacted and 332 households were added as replacement households. In March 2021, 1,309 households were interviewed, of which 991 households were re-interviewed and 318 households were replacement households. In February 2022, 812 households were successfully interviewed while only 801 households were interviewed in April 2022.

Mode of data collection
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Computer Assisted Telephone Interview [cati]

Research instrument
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The Cambodia COVID-19 High Frequency Phone Survey of households questionnaire consists of the following sections:

Round 1
- Interview Information
- Household Roster
- Social Economic Status
- Knowledge Regarding the Spread of COVID-19
- Behavior and Social Distancing
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Shocks and Coping
- Safety Nets

Round 2
- Interview Information
- Household Roster
- Migration
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Safety Nets
- Relief Transfer

Round 3
- Interview Information
- Household Roster
- Social Economic Status
- Knowledge Regarding the Spread of COVID-19
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Safety Nets
- Relief Transfer

Round 4
- Interview Information
- Household Roster
- Social Economic Status
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Shocks and Coping
- Safety Nets
- Relief Transfer
- Payment Method

Round 5
- Interview Information
- Household Roster
- Social Economic Status
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Safety Nets
- Relief Transfer

Round 6
- Interview Information
- Household Roster
- Social Economic Status
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Shocks and Coping
- Safety Nets
- Relief Transfer
- Education
- SWIFT

Round 7
- Interview Information
- Household Roster
- Social Economic Status
- Disability
- Access to Basic Services
- Employment
- Income Loss
- FIES
- Shocks and Coping
- Safety Nets
- Relief Transfer
- Education
- SWIFT

Cleaning operations
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At the end of data collection, the raw dataset was cleaned by the research team. This included formatting, and correcting results based on monitoring issues, enumerator feedback and survey changes.

Only households that consented to being successfully interviewed were kept in the dataset, and all personal information and internal survey variables were dropped from the clean dataset.

Response rate
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Replacement sampling approach was applied to reach the target sample.

摘要
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为监控2019冠状病毒病（COVID-19）大流行对社会经济的影响，并为进一步的政策响应与干预提供信息，世界银行全球倡议中设计了COVID-19高频电话调查（HFPS） household作为其一部分。针对柬埔寨，计划进行总计5轮调查，每1至2个月对household进行回访。这允许追踪大流行随时间推移的影响，并向政府及发展伙伴提供近乎实时数据，支持基于证据的危机应对。

2020年6月，柬埔寨启动了一项现金转移计划，以支持COVID-19期间贫困和易受伤害的household。为更紧密地监控柬埔寨贫困和易受伤害的household中COVID-19的影响，以及柬埔寨为贫困和易受伤害的household提供的现金转移计划在COVID-19期间的影响，从孕产妇和2岁以下儿童的现金转移条件受益人名单中抽取了1,000户IDPoor household作为电话调查的样本。

问卷涵盖了一系列主题，例如对COVID-19及其社会行为的认识、食物获取、食物不安全、COVID-19对收入来源及应对策略的影响、社会援助的获取以及COVID-19对经济活动的影响。问卷设计采用模块化方法，允许在不同调查轮次中根据需要删除和/或添加模块。问卷设计旨在在20至25分钟内完成。

第一轮数据收集始于2020年6月。调查采用计算机辅助电话访谈（CATI）的方式实施。

地理覆盖范围
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全国覆盖及5个地理区域（金边及其他城市地区、平原、洞里萨湖、沿海、高原及山区）。

分析单元
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- household
- 个人

调查范围
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本调查涵盖所有法定household（拥有电话号码）的household，不包括监狱、医院、军事营房和学校宿舍。

数据类型
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样本调查数据 [ssd]

抽样程序
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孕产妇和2岁以下儿童的现金转移条件受益人名单被分配到5个层次，即金边及其他城市地区、平原、洞里萨湖、沿海、高原及山区。样本按每个层次中IDPoor household的大小成比例随机选择。6月份（第一轮）成功访谈了984户household。8月份（第二轮），有784户household接受了再次访谈，并增加了271户替换household。其中，在10月份（第三轮）成功再次联系到841户，其中527户参与了所有三轮的调查。12月份，成功访谈了1,277户household，其中945户household被重新联系，并增加了332户替换household。2021年3月，访谈了1,309户household，其中991户household被重新访谈，并增加了318户替换household。2022年2月，成功访谈了812户household，而2022年4月仅访谈了801户household。

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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柬埔寨COVID-19高频电话调查household问卷包括以下部分：

第一轮
- 访谈信息
- household名单
- 社会经济状况
- 对COVID-19传播的认识
- 行为与社会疏远
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 冲击与应对
- 安全网

第二轮
- 访谈信息
- household名单
- 流动性
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 安全网
- 救济转移

第三轮
- 访谈信息
- household名单
- 社会经济状况
- 对COVID-19传播的认识
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 安全网
- 救济转移

第四轮
- 访谈信息
- household名单
- 社会经济状况
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 冲击与应对
- 安全网
- 救济转移
- 支付方式

第五轮
- 访谈信息
- household名单
- 社会经济状况
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 安全网
- 救济转移

第六轮
- 访谈信息
- household名单
- 社会经济状况
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 冲击与应对
- 安全网
- 救济转移
- 教育
- SWIFT

第七轮
- 访谈信息
- household名单
- 社会经济状况
- 残疾
- 基本服务的获取
- 就业
- 收入损失
- FIES
- 冲击与应对
- 安全网
- 救济转移
- 教育
- SWIFT

数据清洗操作
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在数据收集结束后，研究团队对原始数据集进行了清洗。这包括格式化，并根据监控问题、调查员反馈和调查变更来纠正结果。

仅保留同意成功访谈的household的数据集，并从清洗数据集中删除所有个人信息和内部调查变量。

应答率
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采用替换抽样方法以达到目标样本。