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COVID-19 High Frequency Phone Survey of Households 2020, Round 2

Vietnam, 2020
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Reference ID
VNM_2020_HFPS-R2_v01_M
Producer(s)
World Bank
Metadata
DDI/XML JSON
Created on
Oct 14, 2021
Last modified
Oct 14, 2021
Page views
4626
Downloads
63
  • Study Description
  • Data Dictionary
  • Downloads
  • Get Microdata
  • Identification
  • Version
  • Coverage
  • Producers and sponsors
  • Sampling
  • Survey instrument
  • Data collection
  • Data processing
  • Depositor information
  • Data Access
  • Disclaimer and copyrights
  • Metadata production
  • Identification

    Survey ID number

    VNM_2020_HFPS-R2_v01_M

    Title

    COVID-19 High Frequency Phone Survey of Households 2020, Round 2

    Country
    Name Country code
    Vietnam VNM
    Study type

    Socio-Economic/Monitoring Survey [hh/sems]

    Series Information

    The main objective of this project is to collect household data for the ongoing assessment and monitoring of the socio-economic impacts of COVID-19 on households and family businesses in Vietnam. The estimated field work and sample size of households in each round is as follows:

    Round 1 June/July 2020 fieldwork- approximately 6300 households (at least 1300 minority households)
    Round 2 July/Aug 2020 fieldwork - approximately 4000 households (at least 1000 minority households)
    Round 3 September 2020 - approximately 4000 households (at least 1000 minority households)
    Round 4 January 2021 - approximately 4000 households (at least 1000 minority households)
    Round 5 March 2021 - approximately 4000 households (at least 1000 minority households)
    Additional rounds are under discussion.

    Kind of Data

    Sample survey data [ssd]

    Unit of Analysis

    Households

    Version

    Version Description

    Anonymized dataset for public distribution.

    Version Date

    2021-09-29

    Coverage

    Geographic Coverage

    National, regional

    Producers and sponsors

    Primary investigators
    Name
    World Bank
    Producers
    Name Role
    Mekong Development Research Institute Survey collection firm
    Funding Agency/Sponsor
    Name Role
    World Bank Partially funded the activity
    Department of Foreign Affairs and Trade of Australia Partially funded the activity

    Sampling

    Sampling Procedure

    The 2020 Vietnam COVID-19 High Frequency Phone Survey of Households (VHFPS) uses a nationally representative household survey from 2018 as the sampling frame. The 2018 baseline survey includes 46,980 households from 3132 communes (about 25% of total communes in Vietnam). In each commune, one EA is randomly selected and then 15 households are randomly selected in each EA for interview. We use the large module of to select the households for official interview of the VHFPS survey and the small module households as reserve for replacement. After data processing, the final sample size for Round 2 is 3,935 households.

    Weighting

    The main steps for weight adjustment to ensure national and regional representativeness are:
    (1) Start with base weights from 2018 survey
    (2) HH selection and non-response adjustment using propensity score and probability of selection correction.
    (3) Post-stratification: Rescale weights to match national, region, urban/rural populations based on the 2019 population census.
    (4) Trim weights

    Survey instrument

    Questionnaires

    The questionnaire for Round 2 consisted of the following sections

    Section 2. Behavior
    Section 3. Health
    Section 5. Employment (main respondent)
    Section 6. Coping
    Section 7. Safety Nets
    Section 8. FIES

    Data collection

    Dates of Data Collection
    Start End
    2020-07-27 2020-08-12
    Time periods
    Start date End date
    2020-07-27 2020-08-12
    Data Collectors
    Name
    Mekong Development Research Institute
    Supervision

    World Bank

    Data processing

    Data Editing

    Data cleaning began during the data collection process. Inputs for the cleaning process include available interviewers’ note following each question item, interviewers’ note at the end of the tablet form as well as supervisors’ note during monitoring. The data cleaning process was conducted in following steps:
    • Append households interviewed in ethnic minority languages with the main dataset interviewed in Vietnamese.
    • Remove unnecessary variables which were automatically calculated by SurveyCTO
    • Remove household duplicates in the dataset where the same form is submitted more than once.
    • Remove observations of households which were not supposed to be interviewed following the identified replacement procedure.
    • Format variables as their object type (string, integer, decimal, etc.)
    • Read through interviewers’ note and make adjustment accordingly. During interviews, whenever interviewers find it difficult to choose a correct code, they are recommended to choose the most appropriate one and write down respondents’ answer in detail so that the survey management team will justify and make a decision which code is best suitable for such answer.
    • Correct data based on supervisors’ note where enumerators entered wrong code.
    • Recode answer option “Other, please specify”. This option is usually followed by a blank line allowing enumerators to type or write texts to specify the answer. The data cleaning team checked thoroughly this type of answers to decide whether each answer needed recoding into one of the available categories or just keep the answer originally recorded. In some cases, that answer could be assigned a completely new code if it appeared many times in the survey dataset.
    • Examine data accuracy of outlier values, defined as values that lie outside both 5th and 95th percentiles, by listening to interview recordings.
    • Final check on matching main dataset with different sections, where information is asked on individual level, are kept in separate data files and in long form.
    • Label variables using the full question text.
    • Label variable values where necessary.

    Depositor information

    Depositor
    Name Affiliation
    EFI-EAP-POV-Poverty and Equity World Bank

    Data Access

    Confidentiality
    Is signing of a confidentiality declaration required?
    yes
    Citation requirements

    Use of the dataset must be acknowledged using a citation which would include:

    • the Identification of the Primary Investigator
    • the title of the survey (including country, acronym and year of implementation)
    • the survey reference number
    • the source and date of download

    World Bank. Vietnam COVID-19 High Frequency Phone Survey of Households (HFPS-R2) 2020, Round 2. Ref. VNM_2020_HFPS-R2_v01_M. Dataset downloaded from www.microdata.worldbank.org on [date].

    Disclaimer and copyrights

    Disclaimer

    The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.

    Metadata production

    DDI Document ID

    DDI_VNM_2020_HFPS-R2_v01_M_WB

    Producers
    Name Affiliation Role
    Development Data Group World Bank Documentation of the Study
    Date of Metadata Production

    2021-09-22

    Metadata version

    DDI Document version

    Version 01

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