Child Activity Survey - 2009
Sri Lanka, 2008 - 2009
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Reference ID
LKA-DCS-CAS-2009-v1.0
Producer(s)
Department of Census and Statistics
Metadata
Created on
Jan 19, 2023
Last modified
Jul 28, 2023
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Identification
Survey ID Number
LKA-DCS-CAS-2009-v1.0
Title
Child Activity Survey - 2009
Country
| Name | Country code |
|---|---|
| Sri Lanka | LKA |
Study type
child Labor Survey [hh/cls]
Series Information
The Child Activity Survey 2008/09, the second in the series has been successfully conducted by the Department of Census and Statistics from October - 2008 to April -2009. The sample was 16,000 housing units that represent the whole country excluding the Northern Province.
Funding and technical advices for the survey was provided by the International Labour Organization (ILO).
The survey questionnaire was designed to elicit information on Economic activities, Family work and Leisure activities of the children in the age group of from 5 to 17 years and also information on socio-economic conditions of the households and the health and safety situation of the children surveyed.
Funding and technical advices for the survey was provided by the International Labour Organization (ILO).
The survey questionnaire was designed to elicit information on Economic activities, Family work and Leisure activities of the children in the age group of from 5 to 17 years and also information on socio-economic conditions of the households and the health and safety situation of the children surveyed.
Abstract
Child Activity Survey was designed to measure the economic activities and also other activities such as leisure, education and housekeeping activities in which average Sri Lankan child is involved.
Key objectives of the survey
- To identify the activity status of children
- To identify the health and safety of the working children
- To identify the perceptions of the parents/guardians of the working child
- To identify the labour force information of all persons of age 10 yrs. and over belonging to the household.
- To identify the housing conditions and family income of the household
Key objectives of the survey
- To identify the activity status of children
- To identify the health and safety of the working children
- To identify the perceptions of the parents/guardians of the working child
- To identify the labour force information of all persons of age 10 yrs. and over belonging to the household.
- To identify the housing conditions and family income of the household
Kind of Data
Sample survey data [ssd]
Unit of Analysis
1. Child aged between 5 and 17 yrs
2. Household where the child lives
2. Household where the child lives
Version
Version Description
v1.0 : Full edited dataset , original version for internal DPD use.
Version Date
2011-08-01
Version Notes
v1.0 : Full edited dataset , original version for internal DPD use.
Scope
Notes
The scope of Child Activity Survey 2009 includes the following key sections:-
1). Economic Activity
2). Unemployment
3). Usual Activity Status
4). Housekeeping activities
5). Usual Residence of Child’s Parents
6). Housing conditons
7). Family income of the household
1). Economic Activity
2). Unemployment
3). Usual Activity Status
4). Housekeeping activities
5). Usual Residence of Child’s Parents
6). Housing conditons
7). Family income of the household
Coverage
Geographic Coverage
National coverage. ( Excluding Nothern province )
Universe
Child Population in Sri Lanka
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| Department of Census and Statistics | Ministry of Finance and Planning |
Producers
Sampling
Sampling Procedure
Sampling Plan
A two stage stratified sampling procedure was adopted to select an ultimate sample of 16,000 housing units ( secondary sampling units ) to be enumerated in the survey as described below.
Sample Frame
At the time of the Census of Population & Housing - 2001, Sri Lanka (excluding the Northern Province) was divided in to approximately 100,000 enumeration areas (called census blocks) mainly for the convenience of Census enumeration. Before the Census enumeration, all the building units located in these Census blocks are listed and the Census is conducted using the lists of building units prepared. After the Census enumeration, when the computer data files and the Census data are available, a sampling frame, with such 'Census blocks' as primary sampling units (PSU), was constructed. This sampling frame used in the Household Sample Surveys conducted by DCS was updated in 2006, by making adjustments in the frame; in order to accommodate material changes that took place during the period 2001 to 2005. This updated frame was used as the sampling frame for the purpose of child Activity Survey 2008/09.
Stratification
DCS has a District Statistics Office in each district and thus all its statistical activities are coordinated through these District Statistics Offices for administrative convenience with the first stratification used being the district. Further, there are 3 sectors of residence in Sri Lanka,
(1) Urban (2) Rural and (3) Estate
In a given district, people living in each of these 3 sectors of residence could be considered to have homogeneous characteristics endemic to those sectors while heterogeneous characteristics may be identified among persons of different sectors, in terms of their socio- economic backgrounds. Therefore in a further stratification the districts are further divided by the sector of residence and since there are 20 districts in the survey domain we should have 60 strata altogether. However there are two districts with no identifiable urban sector and 8 districts with no estate sector. Hence we have 50 strata in the sampling frame for the selection of samples.
Allocation of Primary Sampling Units (PSU's)
In order to achieve a sample of 16,000 housing units in the sample, a sample of 1609 census blocks or primary sampling units (PSUs) were selected, as the PSU sample (Later 10 sample housing units from each such PSU were selected to achieve the required ultimate sample of approximately 16,000 housing units). The primary sample of 1609 census blocks were then allocated among the 50 stratums, proportionate to the number of housing units in each stratum.
Selection of Secondary Sampling Units (SSU's)
Lists of the building units of the census blocks (PSUs) so selected were sent to the district statistics office for an 'updating operation'. At this updating operation, details of the building units appearing in the lists were updated to accommodate the changes that have taken place (Additions and/or deletions of units or changing the description).
When the updated lists were received at the DCS, Head office, the secondary sampling units (the sample housing units) were selected by using a systematic sampling method. At this stage a final sample of 10 housing units were selected from each list of updated building units pertaining to a given census block. The distribution of sample housing units by district and sector (stratum) is given in the following table. However, at the time of the survey enumeration, 505 sample housing units were found to be either vacant or demolished making the effective sample housing units for the survey 15,408.
A two stage stratified sampling procedure was adopted to select an ultimate sample of 16,000 housing units ( secondary sampling units ) to be enumerated in the survey as described below.
Sample Frame
At the time of the Census of Population & Housing - 2001, Sri Lanka (excluding the Northern Province) was divided in to approximately 100,000 enumeration areas (called census blocks) mainly for the convenience of Census enumeration. Before the Census enumeration, all the building units located in these Census blocks are listed and the Census is conducted using the lists of building units prepared. After the Census enumeration, when the computer data files and the Census data are available, a sampling frame, with such 'Census blocks' as primary sampling units (PSU), was constructed. This sampling frame used in the Household Sample Surveys conducted by DCS was updated in 2006, by making adjustments in the frame; in order to accommodate material changes that took place during the period 2001 to 2005. This updated frame was used as the sampling frame for the purpose of child Activity Survey 2008/09.
Stratification
DCS has a District Statistics Office in each district and thus all its statistical activities are coordinated through these District Statistics Offices for administrative convenience with the first stratification used being the district. Further, there are 3 sectors of residence in Sri Lanka,
(1) Urban (2) Rural and (3) Estate
In a given district, people living in each of these 3 sectors of residence could be considered to have homogeneous characteristics endemic to those sectors while heterogeneous characteristics may be identified among persons of different sectors, in terms of their socio- economic backgrounds. Therefore in a further stratification the districts are further divided by the sector of residence and since there are 20 districts in the survey domain we should have 60 strata altogether. However there are two districts with no identifiable urban sector and 8 districts with no estate sector. Hence we have 50 strata in the sampling frame for the selection of samples.
Allocation of Primary Sampling Units (PSU's)
In order to achieve a sample of 16,000 housing units in the sample, a sample of 1609 census blocks or primary sampling units (PSUs) were selected, as the PSU sample (Later 10 sample housing units from each such PSU were selected to achieve the required ultimate sample of approximately 16,000 housing units). The primary sample of 1609 census blocks were then allocated among the 50 stratums, proportionate to the number of housing units in each stratum.
Selection of Secondary Sampling Units (SSU's)
Lists of the building units of the census blocks (PSUs) so selected were sent to the district statistics office for an 'updating operation'. At this updating operation, details of the building units appearing in the lists were updated to accommodate the changes that have taken place (Additions and/or deletions of units or changing the description).
When the updated lists were received at the DCS, Head office, the secondary sampling units (the sample housing units) were selected by using a systematic sampling method. At this stage a final sample of 10 housing units were selected from each list of updated building units pertaining to a given census block. The distribution of sample housing units by district and sector (stratum) is given in the following table. However, at the time of the survey enumeration, 505 sample housing units were found to be either vacant or demolished making the effective sample housing units for the survey 15,408.
Deviations from the Sample Design
The Child Activity Survey 2008/09, the second in the series has been successfully conducted by the Department of Census and Statistics from October - 2008 to April -2009. The sample was 16,000 housing
units that represent the whole country excluding the Northern Province
units that represent the whole country excluding the Northern Province
Response Rate
Response Rate is 97.5%
Data Collection
Dates of Data Collection
| Start | End | Cycle |
|---|---|---|
| 2008-11-01 | 2009-06-30 | 8 months |
Data Collection Mode
Face-to-face [f2f]
Supervision
Survey field work was done in four rounds during the period from November 1998 to June 1999. Eight teams, each team consisting of 5 enumerators and a supervisor, were employed in the survey field enumeration.
A four day training programme was organized to train the enumerators and supervisors in different aspects of the survey enumeration prior to the survey. This training programme was also attended by ILO & IPEC representatives. While the survey teams were in field, they were frequently visited by coordinators to evaluate the field conditions and also to liaise with the head office. These visits also helped the survey teams to get their problems addressed properly.
A four day training programme was organized to train the enumerators and supervisors in different aspects of the survey enumeration prior to the survey. This training programme was also attended by ILO & IPEC representatives. While the survey teams were in field, they were frequently visited by coordinators to evaluate the field conditions and also to liaise with the head office. These visits also helped the survey teams to get their problems addressed properly.
Data Collection Notes
As it can be seen in the questionnaire, it would have been best if the children themselves were interviewed to obtain the required information under section 3 and 4 of the questionnaire. However the experience of the survey teams was that the children were mostly not available during the time of the interviews and required information had to be obtained from a proxy respondent. ( very frequently from a parent of the child).
When a selected sample housing unit was temporarily closed at the time of the survey, the survey team was expected to re-visit the same housing unit, even several times, with the view of getting a better response. Survey teams got a very good co-operation from the respondents (children and their parents) as regards the information collected. This was so because the questionnaire was not just confined to economic activities of the children.
The questionnaire was so designed to get the information on educational, leisure and housekeeping activities of the children prior to the information on economic activities and this sequential order of the questions helped very much for the survey enumerators to get the co-operation of the respondent.
However the reliability of the information provided by the respondents as to the duration of time spent on each activity is questionable, specially when the involvement of the child in a particular activity is very minimal.
When a selected sample housing unit was temporarily closed at the time of the survey, the survey team was expected to re-visit the same housing unit, even several times, with the view of getting a better response. Survey teams got a very good co-operation from the respondents (children and their parents) as regards the information collected. This was so because the questionnaire was not just confined to economic activities of the children.
The questionnaire was so designed to get the information on educational, leisure and housekeeping activities of the children prior to the information on economic activities and this sequential order of the questions helped very much for the survey enumerators to get the co-operation of the respondent.
However the reliability of the information provided by the respondents as to the duration of time spent on each activity is questionable, specially when the involvement of the child in a particular activity is very minimal.
Data Collectors
| Name | Abbreviation | Affiliation |
|---|---|---|
| Department of Census and Statistics | DCS | Ministry of Finance and Planning |
Questionnaires
Questionnaires
The questionnaire was designed to collect information on
economic activities
housekeeping activities and
other leisure activities
in which the children in the age group 5-17 years are involved. Additional information on socio-economic conditions of their families was also collected at the survey.
economic activities
housekeeping activities and
other leisure activities
in which the children in the age group 5-17 years are involved. Additional information on socio-economic conditions of their families was also collected at the survey.
Data Processing
Data Editing
When the completed questionnaires are received at the head office, the questionnaires were subject to a manual editing and coding operation at the Sample Survey Division of the DCS.
Other Processing
The compter data entry was done at the Data Processing Division and the data so entered was subject to a computer editing operation again at the Sample Survey Division. The clean data files so produced were then used to produce the tabulations.
Access policy
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Information Unit | Department of Census & Statistics | information@statistics.gov.lk | http//:www.statistics.gov.lk |
| Sample Surveys Division | Department of Census & Statistics | sample.survey@statistics.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, Child Activity Survey - 2009, Version 1.0 of the public use dataset (August 2008), 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
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) 2011 Department of Census and Statistics
Metadata production
DDI Document ID
DDI-LKA-DCS-CAS-2009-v1.0
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Department of Census and Statistics | DCS | Minstry of Finance & Planning | Data Collection |
Date of Metadata Production
2011-08-01
DDI Document version
Version 1.0 ( Aug 2011 ).