Labour Force Survey-2006
Sri Lanka
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Reference ID
LKA-DCS-LFS-2006-V01
Producer(s)
Department of Census and Statistics
Metadata
Created on
Jan 20, 2023
Last modified
Jul 28, 2023
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Identification
Survey ID Number
LKA-DCS-LFS-2006-V01
Title
Labour Force Survey-2006
Country
| Name | Country code |
|---|---|
| Sri Lanka | LKA |
Abstract
Department of Census and Statistics (DCS) designed a Labour Force Survey(LFS) on a quarterly basis to measure the levels and trends of employment, unemployment and labourforce in Sri Lanka on a continuous basis. This surveycommenced from the first quarter 1990 with USAID technical assistance and is being continuedby the DCS.
Mainly, following information can be obtained by the survey.
1.The economically active / inactive from population.
2.Employment by major industry group and employment status.
3.Unemployment rates by level of education and by age group
4.The informal sector employment.
5.The underemployment rates by sector and by major industries
6.Total Jobs in Sri Lanka with Secondary Employment
7.Informal Employment in Sri Lanka
8.Literacy
Mainly, following information can be obtained by the survey.
1.The economically active / inactive from population.
2.Employment by major industry group and employment status.
3.Unemployment rates by level of education and by age group
4.The informal sector employment.
5.The underemployment rates by sector and by major industries
6.Total Jobs in Sri Lanka with Secondary Employment
7.Informal Employment in Sri Lanka
8.Literacy
Unit of Analysis
Individuals from the population aged 10 years or more
Version
Version Description
V01
Coverage
Geographic Coverage
National coverage except Northern and Eastern provinces
Universe
Working age population (10 years and above) living in the non-institutional households in Sri Lanka.
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| Department of Census and Statistics | Ministry of Finance and Planning |
Funding Agency/Sponsor
| Name | Abbreviation |
|---|---|
| Government of Sri Lanka | GOSL |
Sampling
Sampling Procedure
Sampling plan and the sampling frame
A two stage stratified sampling procedure was adopted to select a sample of 22,000 housing units to be enumerated in the survey. The master
sampling frame prepared for 2001 ・Census of Population and Housing was used as the sampling frame for the selection of sample for the labour force survey 2006.
Sample size
The quarterly survey was conducted since 1990 using a sample of 2,000 housing units per quarter in areas other than North and East, and the sample size was increased to 4,000 housing units per quarter 1996 and continued thereafter. However, in 1992 and 1997, an annual sample of 20,000 housing units was selected to give reliable estimates of district level. In 2004 again 20,000 housing units were selected for the survey. However, in order to provide district level estimates precisely, it was decided to use 20,000 -25,000 housing units as the annual sample. As such, in 2006, the annual sample of 22,000 housing units was selected.
Sample Allocation
Allocation of 2,000 Primary Sampling Units (PSU) for the districts and sectors were done using the Neymann Allocation procedure. In other
words, the allocation of PSU to strata was disproportionate, designed to produce estimates of acceptable reliability for each area for which separate estimates were needed. Then The district sample was equally distributed among the 12 monthly rounds.
Selection of Primary Sampling Units (PSU)
Primary sampling units are the census blocks prepared for the Census of Population and Housing 2001. The sample frame, which is a collection of all census blocks in the domain,
was used for the selection of primary sampling units. A sample of 2,200 primary sampling units was selected from the sampling frame for the 2006 labour force survey.
Selection of Secondary Sampling Units (SSU)
Secondary Sampling Units are the housing units in the selected 2,200 primary sampling units (census blocks). From each primary sampling unit 10 housing units (SSU) were selected for the urvey.
A two stage stratified sampling procedure was adopted to select a sample of 22,000 housing units to be enumerated in the survey. The master
sampling frame prepared for 2001 ・Census of Population and Housing was used as the sampling frame for the selection of sample for the labour force survey 2006.
Sample size
The quarterly survey was conducted since 1990 using a sample of 2,000 housing units per quarter in areas other than North and East, and the sample size was increased to 4,000 housing units per quarter 1996 and continued thereafter. However, in 1992 and 1997, an annual sample of 20,000 housing units was selected to give reliable estimates of district level. In 2004 again 20,000 housing units were selected for the survey. However, in order to provide district level estimates precisely, it was decided to use 20,000 -25,000 housing units as the annual sample. As such, in 2006, the annual sample of 22,000 housing units was selected.
Sample Allocation
Allocation of 2,000 Primary Sampling Units (PSU) for the districts and sectors were done using the Neymann Allocation procedure. In other
words, the allocation of PSU to strata was disproportionate, designed to produce estimates of acceptable reliability for each area for which separate estimates were needed. Then The district sample was equally distributed among the 12 monthly rounds.
Selection of Primary Sampling Units (PSU)
Primary sampling units are the census blocks prepared for the Census of Population and Housing 2001. The sample frame, which is a collection of all census blocks in the domain,
was used for the selection of primary sampling units. A sample of 2,200 primary sampling units was selected from the sampling frame for the 2006 labour force survey.
Selection of Secondary Sampling Units (SSU)
Secondary Sampling Units are the housing units in the selected 2,200 primary sampling units (census blocks). From each primary sampling unit 10 housing units (SSU) were selected for the urvey.
Weighting
Please refer annual report for weighting procedure
Data Collection
Data Collection Mode
Paper Assisted Personal Interview [papi]
Questionnaires
Questionnaires
Survey Schedule
Current survey concepts and methods are very Similar to those introduced at the beginning. However, some changes have been made in 2006 to improve the accuracy and usefulness of the data.
The questionnaire is attached in the final report.
Current survey concepts and methods are very Similar to those introduced at the beginning. However, some changes have been made in 2006 to improve the accuracy and usefulness of the data.
The questionnaire is attached in the final report.
Access policy
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Information Unit | Department of Census and Statistics | information@statistics.gov.lk | www.statistics.gov.lk |
Confidentiality
Under the Statistical ordinance, micro data cannot be released with identifications for public use. Procedures are in place to ensure that information relating to any particular individual person, household or undertaking will be kept strictly confidential and will not be divulged to external parties. Information on individual or individual Household/establishment will not be divulged or published in such a form that will facilitate the identification of any particular person or establishment as the data have been collected under the Census/Statistical ordinance, according to which the information at individual level cannot be divulged and such information is strictly confidential.
Access conditions
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:
1. The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement.
2. 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.
3. 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.
4. No attempt will be made to produce links among datasets provided by the Department or among data from the Department and other datasets that could identify individuals or organizations.
5. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the Department will cite the source of data in accordance with the Citation Requirement provided with each dataset.
6. An electronic copy of all reports and publications based on the requested data will be sent to the Department
The following rules apply to micro data released by the Department of Census and Statistics.
・Only the requests of Government Institutions, Recognized Universities, Students, and selected international agencies are entertained. However, the Data users are required to strictly adhere to
the terms stipulated in the agreement form.
・All the data requests should be made to Director General (DG) of the DCS as the sole authority of releasing data is vested with the DG, DCS. DCS of Sri Lanka reserves sole right to approve or reject any data request made depending on the confidential nature of the data set and intended purpose of the study or analysis.
・Requests for micro data should be made through the agreement form designed by DCS for this purpose (Form D.R.1). The agreement form should be filled in triplicate and the Study/project proposal should accompany the filled agreement form. If requests are made for the micro data of more than one survey, a separate agreement should be signed.
・If the data request is from a student a letter from the respective Dept. Head/Dean/Supervisor, recommending the issue of data, should also be accompanied.
・The released Data file should be used only for the specific study/Analysis mentioned in the agreement form and shall not be used for any other purpose without the prior approval of the Director General of the DCS. Moreover, Copies of the micro-data file, obtained from the DCS, shall not be given to anyone else without the prior written approval of the Director General of the DCS.
・The draft report of the Study/Analysis should be submitted to the DCS and the concurrence of the DG, DCS, should be obtained before publishing it. Once published, a copy of the final report should be submitted to the DCS.
[Department : The Department of Census and Statistics]
Source : http://www.statistics.gov.lk/databases/data%20dissemination/DataDissaPolicy_2007Oct26.pdf
1. The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement.
2. 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.
3. 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.
4. No attempt will be made to produce links among datasets provided by the Department or among data from the Department and other datasets that could identify individuals or organizations.
5. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the Department will cite the source of data in accordance with the Citation Requirement provided with each dataset.
6. An electronic copy of all reports and publications based on the requested data will be sent to the Department
The following rules apply to micro data released by the Department of Census and Statistics.
・Only the requests of Government Institutions, Recognized Universities, Students, and selected international agencies are entertained. However, the Data users are required to strictly adhere to
the terms stipulated in the agreement form.
・All the data requests should be made to Director General (DG) of the DCS as the sole authority of releasing data is vested with the DG, DCS. DCS of Sri Lanka reserves sole right to approve or reject any data request made depending on the confidential nature of the data set and intended purpose of the study or analysis.
・Requests for micro data should be made through the agreement form designed by DCS for this purpose (Form D.R.1). The agreement form should be filled in triplicate and the Study/project proposal should accompany the filled agreement form. If requests are made for the micro data of more than one survey, a separate agreement should be signed.
・If the data request is from a student a letter from the respective Dept. Head/Dean/Supervisor, recommending the issue of data, should also be accompanied.
・The released Data file should be used only for the specific study/Analysis mentioned in the agreement form and shall not be used for any other purpose without the prior approval of the Director General of the DCS. Moreover, Copies of the micro-data file, obtained from the DCS, shall not be given to anyone else without the prior written approval of the Director General of the DCS.
・The draft report of the Study/Analysis should be submitted to the DCS and the concurrence of the DG, DCS, should be obtained before publishing it. Once published, a copy of the final report should be submitted to the DCS.
[Department : The Department of Census and Statistics]
Source : http://www.statistics.gov.lk/databases/data%20dissemination/DataDissaPolicy_2007Oct26.pdf
Citation requirements
"Department of Census and Statistics, Sri Lanka Labour Force Survey - 2006, Version 1.0 of the public use dataset , provided by the National Data Archive, Data Processing Division, www.statistics.gov.lk"
Access authority
| Name | Affiliation | URL | |
|---|---|---|---|
| Director General | Department of Census and Statistics | dgcensus@statistics.gov.lk | http//:www.statistics.gov.lk |
Disclaimer and copyrights
Copyright
(C)2006, Department of Census and Statistics
Metadata production
DDI Document ID
DDI-LKA-DCS-LFS-2006-V01
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Department of Census and Statistics | DCS | Ministry of Finance and Planning | Data collection and publishing |
Date of Metadata Production
2025-09-15
DDI Document version
Version 1.1(Sep 2025)