High Frequency Phone Survey for Displaced Population 2021-2022
Somalia, 2021 - 2022
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SOM_2021-2022_HFPS-IDP_v01_M
High Frequency Phone Survey for Displaced Population 2021-2022
| Name | Country code |
|---|---|
| Somalia | SOM |
Socio-Economic/Monitoring Survey [hh/sems]
The first round of the survey was conducted between November 2021 and March 2022 and second round was conducted in July-August 2022.
Two survey rounds conducted from November 2021 to August 2022 yield samples for five population groups: host communities for IDPs, IDPs in and out of settlements, refugees and asylum seekers and refugee returnees. Implemented by the World Bank in collaboration with the United Nations High Commissioner for Refugees (UNHCR) and the National Bureau of Statistics (NBS) in Somalia, this cost-effective phone-based survey aimed to follow the same respondents over a period of time.
Sample survey data [ssd]
- Household
- Individual
Version
Version 01: Edited, anonymized dataset for public distribution
2023-12-04
Scope
The survey questionnaire was designed to cover important and relevant topics for displaced populations. Modules included household and individual-level sociodemographic characteristics, knowledge of COVID-19 and adoption of preventive behavior, access to basic goods and services, access to social assistance, impacts of COVID-19 on economic activity and income sources, households' exposure to shocks including ongoing drought and coping mechanisms as well as displacement-specific topics such as interaction between the displaced and host communities.
Coverage
National
Households with access to phones.
Producers and sponsors
| Name |
|---|
| World Bank |
| Name |
|---|
| The Somalia Multi-Partner Fund |
| Joint Data Center on Forced Displacement |
Sampling
The sample consists of five strata: (i) host communities; (ii) IDPs living in settlements; (iii) IDPs living outside settlements; (iv) refugees; and (v) refugee returnees. Each stratum consisted of about 500 households, making up the total sample of around 2,500 respondents.
Samples for the host communities and IDPs living outside settlements were selected from the previous national phone survey (Somalia high frequency phone survey - SHFPS) conducted by the World Bank in Somalia from June 2020 until October 2021. The sample for host communities was selected on the basis of frequency of interaction with IDP populations, with households that reported that they had had interacted with the IDPs at least once a month collected for the sample. For IDPs living in the settlements, phone numbers were collected by UNHCR from the settlements in Bay and Banadir, while those for refugees and refugee returnees were provided from the UNHCR database.
Except for IDPs in settlements, the majority of the displacement-affected households surveyed live in urban areas. The majority of the refugees in Somalia are either from Ethiopia (54 percent) and Yemen (41 percent). Therefore, this survey focused on these two refugee groups. The refugee households mostly live in Somaliland (53 percent) with a considerable number in Puntland (28 percent) and Banadir (15 percent). In the case of refugee returnees, about 11,606 households were registered in the UNHCR database at the time of sample selection, mostly coming from Kenya (97 percent) and Yemen (2 percent). Both these groups were included in the sample proportionally to their population share. The majority of the sampled refugee returnees live in Jubaland (78 percent). As for settlement-based IDPs, two main regions—Banadir and Bay—which host almost 50 percent of the settlement-based IDPs in Somalia were focused.
The reweighting process has two major steps:
(i) Construct sampling weights to correct for the selection bias generated by phone surveys. This was achieved using a Propensity Score Weighting (PSW) methodology; and
(ii) Adjust weights to ensure that the distribution of the final weighted sample by population type in respective states was equal to the distribution of the population in Somalia regarding population type. This was achieved using a post stratification.
For (ii) the post-stratification, the total number of households used for IDPs living outside the settlements and host communities comes from the Population Estimation Survey of Somalia (PESS) 2013-2014. For refugees and returnees, the total number of households who are registered in the UNHCR database was used. For IDPs living in the settlements, the figure is derived from the total number of households registered in Bay and Banadir region only. The weights are designed to conduct the data analysis separately for each stratum, and not for the entire sample combined.
Data collection
| Start | End | Cycle |
|---|---|---|
| 2021-11-17 | 2022-03-07 | Round 1 |
| 2022-06-30 | 2022-08-11 | Round 2 |
- Computer Assisted Personal Interview [capi]
| Name |
|---|
| Samuel Hall |
The first round of the data collection started in November 2021 with host communities and IDPs living outside settlements. For the remaining populations, data were collected during January 2022 and March 2022. The final number of successful interviews was 2,471. After data cleaning, 2,442 was used for the further data analysis which consists of 539 host communities, 493 IDPs in settlements, 460 IDPs living outside the settlements, 403 refugees and 547 refugee returnees.
The second round of the data collection was conducted in July - August 2022. Enumerators called the same households reached in the first round and at the end, successfully conducted interviews with 2,020 households. An additional 520 new households were added to increase the sample size. The final data consists of 469 host communities, 551 IDPs in settlements, 503 IDPs living outside the settlements, 467 refugees and 550 refugee returnees.
Data processing
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 interviewed were kept in the dataset, and all personal information and internal survey variables were dropped from the clean dataset.
Data Access
| Confidentiality declaration text |
|---|
| Before being granted access to the dataset, all users have to formally agree: 1. To make no copies of any files or portions of files to which s/he is granted access except those authorized by the data depositor. 2. Not to use any technique in an attempt to learn the identity of any person, establishment, or sampling unit not identified on public use data files. 3. To hold in strictest confidence the identification of any establishment or individual that may be inadvertently revealed in any documents or discussion, or analysis. Such inadvertent identification revealed in her/his analysis will be immediately brought to the attention of the data depositor. |
The dataset has been anonymized and is available as a Public Use Dataset. It is accessible to all for statistical and research purposes only, under the following terms and conditions:
- The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement of the World Bank Microdata Library.
- The data will be used for statistical and scientific research purposes only. They will be used solely for reporting of aggregated information, and not for investigation of specific individuals or organizations.
- No attempt will be made to re-identify respondents, and no use will be made of the identity of any person or establishment discovered inadvertently. Any such discovery would immediately be reported to the World Bank Microdata Library.
- No attempt will be made to produce links among datasets provided by the World Bank Microdata Library, or among data from the World Bank Microdata Library and other datasets that could identify individuals or organizations.
- Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the World Bank Microdata Library will cite the source of data in accordance with the Citation Requirement provided with each dataset.
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 (2021-2022). Somalia - High Frequency Phone Survey for Displaced Population 2021-2022. Ref: SOM_2021-2022_HFPS-IDP_v01_M. Abuja. Dataset downloaded from [url] on [date].
Disclaimer and copyrights
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.
Contacts
| Name | Affiliation | |
|---|---|---|
| Kazusa Yoshimura | IBRD | kyoshimura1@worldbank.org |
Metadata production
DDI_SOM_2021-2022_HFPS-IDP_v01_M_WB
| Name | Affiliation | Role |
|---|---|---|
| Development Data Group | The World Bank | Documentation of the DDI |
2023-12-12
Metadata version
Version 01 (December 2023)