Survey of Demographic and Social Aspects - 1986-1987
Sri Lanka, 1986 - 1987
Reference ID
LKA-DCS-DSA-1986-87-v1.0
Producer(s)
Department of Census and Statistics
Metadata
Created on
Jan 19, 2023
Last modified
Jan 19, 2023
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Identification
Survey ID Number
LKA-DCS-DSA-1986-87-v1.0
Title
Survey of Demographic and Social Aspects - 1986-1987
Country
| Name | Country code |
|---|---|
| Sri Lanka | LKA |
Study type
Demographic and Health Survey, Special [hh/dhs-sp]
Series Information
The Survey of - Demographic and Social Aspects - 1986/87 was the fourth in the series of surveys conducted by the Department of Census and Statistics under the National Household Survey Capability Programme(NHCSP) of the United Nations.
Abstract
The survey provides comprehensive information on demographic characteristics, Migration, Health, Housing and Access to Basic Amenities and Cultural Aspects. Demographic information has been collected to cross classify variables of other section viz migration, health etc; by demographic characteristics of the population.
Information on internal migration was one of the subjects which has been covered in this survey. In addition to fertility and mortality, the third factor affecting population change in a given area is migration. The movement of population from one area to another affects its age, sex composition and geographical distribution:. This movement of
population within the national boundaries of a country is called the internal migration and the movement across the national boundaries is called the international migration. This survey provide information on long term, medium term as well as short term migration.
Information on health status of its population and utilization of health services is a basic requirement for planning and evaluation of health services in the country and for monitoring the health status of the population. This survey gathered information on health such as age, sex, distribution of these patients, their household income, employment, household size and composition, their housing conditions, sources of water for drinking, toilet facilities available for them etc. which generally cannot be obtained through service statistics. Information on Housing and Access to Basic Amenities were also collected in this survey. Detailed information on housing, which are very essential for planning and policy formulation in this area were collected through this survey. Information on Cultural and Recreational activities were also collected at this survey such as usage of cinemas, theatres and libraries, participation in cultural events etc.
Information on internal migration was one of the subjects which has been covered in this survey. In addition to fertility and mortality, the third factor affecting population change in a given area is migration. The movement of population from one area to another affects its age, sex composition and geographical distribution:. This movement of
population within the national boundaries of a country is called the internal migration and the movement across the national boundaries is called the international migration. This survey provide information on long term, medium term as well as short term migration.
Information on health status of its population and utilization of health services is a basic requirement for planning and evaluation of health services in the country and for monitoring the health status of the population. This survey gathered information on health such as age, sex, distribution of these patients, their household income, employment, household size and composition, their housing conditions, sources of water for drinking, toilet facilities available for them etc. which generally cannot be obtained through service statistics. Information on Housing and Access to Basic Amenities were also collected in this survey. Detailed information on housing, which are very essential for planning and policy formulation in this area were collected through this survey. Information on Cultural and Recreational activities were also collected at this survey such as usage of cinemas, theatres and libraries, participation in cultural events etc.
Kind of Data
Sample survey data [ssd]
Unit of Analysis
Household, Individuals
Version
Version Description
v1.0: Full edited dataset, original version for internal DPD use.
Version Date
2009-03-12
Scope
Notes
The scope of DSA 1986-1987 includes the following key sections:-
- Personal Information
- Internal Migration
- Chronic illness
- Accidents
- Disability
- Health Services
- Information of Children born last 24 Months
- Immunization
- Housing Characteristics
- Amenities and Environments Sanitation
- Those who Renting Accommodation
- Distance to the Nearest Places
- Ownership of Transport Equipment
- Household Equipment
- Regarding Books Magazines and Newspapers
- Spending Time of Recreational / Cultural Activities
- Purpose of Participation in any Cultural Activity as a Producer
- Purpose of Participation in Sports Activities
- Purpose of Participation in Religious / Social Activities.
- Personal Information
- Internal Migration
- Chronic illness
- Accidents
- Disability
- Health Services
- Information of Children born last 24 Months
- Immunization
- Housing Characteristics
- Amenities and Environments Sanitation
- Those who Renting Accommodation
- Distance to the Nearest Places
- Ownership of Transport Equipment
- Household Equipment
- Regarding Books Magazines and Newspapers
- Spending Time of Recreational / Cultural Activities
- Purpose of Participation in any Cultural Activity as a Producer
- Purpose of Participation in Sports Activities
- Purpose of Participation in Religious / Social Activities.
Coverage
Geographic Coverage
National coverage.
Universe
Housing units representing all the disitricts & sectors of the country
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 |
| United States Agency for International Development | USAID |
Other Identifications/Acknowledgments
Sampling
Sampling Procedure
A sample of 25,000 housing units, representing all the districts and sectors of the country was selected for the survey to give estimates at district level. The sample was spread over a period of 12 months to cover the seasonal fluctuations of some variables collected in the survey.
Data Collection
Dates of Data Collection
| Start | End |
|---|---|
| 1986-06-01 | 1987-05-31 |
Data Collection Mode
Face-to-face [f2f]
Supervision
Statistical officers attached to 25 administrative districts functioned as immediate supervising officers.
Data Collection Notes
Field data Collection
The collection of data war done by approximately 250 Statistical Investigators who belong to the permanent field staff of the Department of Census and Statistics, were primarily involved in the listing and survey operations.
The collection of data war done by approximately 250 Statistical Investigators who belong to the permanent field staff of the Department of Census and Statistics, were primarily involved in the listing and survey operations.
Data Collectors
| Name | Abbreviation | Affiliation |
|---|---|---|
| Department of Census and Statistics | DCS | Ministry of Finance and Planning |
Data Processing
Data Editing
Data entry checks·
Range checks and a number of other simple edit checks were performed on the data entry machines
(key to disk) while the data was being keyed.
Computer edits
Most of the edits performed manually were incorporated in the computer edits and the data was
thoroughly cleaned before the working master fl1es were created. The computer edit consists of
three parts.
(i) Structural edit
(ii) Range edit
(iii) Consistency checks within sections and between sections
Range checks and a number of other simple edit checks were performed on the data entry machines
(key to disk) while the data was being keyed.
Computer edits
Most of the edits performed manually were incorporated in the computer edits and the data was
thoroughly cleaned before the working master fl1es were created. The computer edit consists of
three parts.
(i) Structural edit
(ii) Range edit
(iii) Consistency checks within sections and between sections
Other Processing
Data processing included the following steps.
1. Counting and accepting the filled questionnaires by the DP Division
2. Do a visual check for completeness
3. Preliminary editing and marking codes
4. Entry of data
5. Run edit program for each District batch
6. Produce error report and return to the Survey office
7. Correction of errors on the report
8. Change incorrect data using the corrected error report
9. Re-run the edit program and repeat the error correction procedure
10. Produce final report on clean data with a backup of clean data.
After all batches have been processed, all data files were combined together and then the following activities were
done :-
11) Re-coding of variables needed for analysis
12) Adding sample weights
13) Tabulations
1. Counting and accepting the filled questionnaires by the DP Division
2. Do a visual check for completeness
3. Preliminary editing and marking codes
4. Entry of data
5. Run edit program for each District batch
6. Produce error report and return to the Survey office
7. Correction of errors on the report
8. Change incorrect data using the corrected error report
9. Re-run the edit program and repeat the error correction procedure
10. Produce final report on clean data with a backup of clean data.
After all batches have been processed, all data files were combined together and then the following activities were
done :-
11) Re-coding of variables needed for analysis
12) Adding sample weights
13) Tabulations
Access policy
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Information Unit | Department of Census and Statistics | information@statistic.gov.lk | http//:www.statistics.gov.lk |
| Sample Survey Division | Department of Census and Statistics | Sample.survey@statistic.gov.lk | http//: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.
• If the request is approved only 25% of the data file is released at the first stage. The release of the total data file is considered only after reviewing the draft report prepared on the basis of the 25% sample data file.
• 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.
• If the request is approved only 25% of the data file is released at the first stage. The release of the total data file is considered only after reviewing the draft report prepared on the basis of the 25% sample data file.
• 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, Demographic and Social Aspects Survey 1986-87, Version 1.0 of the public use dataset, March 2009, 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@sltnet.lk | http//:www.statistics.gov.lk |
Disclaimer and copyrights
Disclaimer
The Department of Census and Satatistics bears no responsibility for any results or interpretations arising from the secondary use of the data.
Copyright
(C) 2009, Department of Census and Statistics
Metadata production
DDI Document ID
DDI-LKA-DCS-DSA-1986-87-v1.0
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Department of Census and Statistics | DCS | Minstry of Finance & Planning | Data Collection |
Date of Metadata Production
2009-03-11
DDI Document version
Version 1.0 ( March 2009 ).