Bangladesh Bureau of Statistics (BBS) has conducted the National Child Labour Survey (NCLS) in 2002-03. NCLS 2002-2003 covered the entire country and was undertaken to provide reliable estimates of economically active children aged 5-17 years and child labour at national, urban and rural levels, as well as of children engaged in non-economic activities. The sample size and the coverage of the survey as such that it could furnish reliable key estimates by some administrative units such as divisions and regions/former districts. The survey has been designed to obtain estimates on a number of variables or parameters, particularly in relation to economic and non-economic activities of the children in age group 5-14 under usual circumstances and 15-17 in the case of worst forms of child labour (WFCL).
Objectives of the survey
The main objective of the survey is to collect comprehensive data on working children aged 5 to 17 years. To achieve the objective, the survey instrument (questionnaire) has been designed as such to identify all activities of the children, economic or non-economic and these are broadly classified as –
· attending school only (no other activity);
· attending school and also engaged in economic activity;
· attending school and also engaged in non-economic activity;
· engaged in economic activity only;
· engaged in non-economic activity only;
· engaged both in economic and non-economic activities;
· other children (sick, disabled or reported as idle);
· not attending school and
· not attending school and also not engaged in any economic and/or noneconomic activities.
The specific objectives of the survey are the following:
i) to estimate the number (national, rural, urban etc) of working children and child labour by age, gender, education and residence, etc;
ii) to estimate the number of working children by occupation, industry, status in employment etc. at 1- 4 digit Bangladesh Standard Occupation Classification (BSOC) and Bangladesh Standard Industrial Classification (BSIC) level respectively,in the line of the International Standard Industrial Classification of all economic activities (ISIC-Rev 3) and the International Standard Classification of Occupations (ISCO, 1988);
iii) to assess the demographic and socio-economic characteristics of the families of working children;
iv) to assess the social characteristics and working environment etc. of children;
v) to assess average earnings/wages, remuneration, hours of work etc;
vi) to assess occupational risk and health hazards, injuries, diseases and extent of disability etc.
vii) to assess the extent of exploitation of working children in terms of hours of work and wages earned
Kind of Data
Sample survey data [ssd]
Unit of Analysis
- Children age 5 to 17
Unit of Analysis
- Children age 5 to 17
Producers and sponsors
Authoring entity/Primary investigators
Bangladesh Bureau of Statistics (BBS)
The NCLS was undertaken using Integrated Multipurpose Sample (IMPS) design The IMPS design is constructed on the basis of the Bangladesh population census 2001. It consists of 1,000 primary sampling units (PSUs) or enumeration blocks (EBs). Out of the total sample PSUs/EBs, 642 PSUs are selected from rural areas, 80 PSUs from statistical metropolitan areas (SMAs) and 278 PSUs from other urban areas or municipalities. In the rural areas, the PSU/EB is defined as a mouza, or the PSU/EB is a part of a mouza, or the combination of neighbouring mouzas; while in the urban areas, the PSu/EB is a mahalla, or a part a part of a mahalla, with an average number of 200 households per PSU. An enumeration block or PSU is constructed on the basis of contiguous census EAs (Enumeration Area) such that each EB/PSU is comprised of 180-220 households. There are 2 stages of stratification. At first 6 administrative divisions (The administrative setup of Bangladesh according to hierachy are as follows:- Division, district/zila, Thana/Upazila or Subdistrict, Union/ward and Village/mahalla. Division comprises of number of district/zila, district/zila consists of number of thana/upazila and Union consists of number of Villages. Mouza is a lowest unit for land revenue purpose. Bangladesh is now comprises of 6 divisions. In rural areas, the lowest unit is called village and in a urban areas it is called as mahalla) are treated as super strata and within these super strata there is a second stage of stratification comprising (i) rural areas, (ii) statistical metropolitan areas (SMAs) and municipalities. The SMAs and municipalities constitute urban area or urban stratum. The IMPS design consist of 16 strata which are :
i) six rural strata for 6 divisions;
ii) six urban strata for 6 divisions; and
iii) four SMA strata for 4 metropolitan cities.
The sampling scheme is PPS with proportional allocation within 16 strata at three stages with one unit selected at each stage. Three different stages are considered to select PSUs/EBs for each strata. Out of these three stages, two stages are dummy stages such that the selection of PSUs are essentially drawn by a single stage cluster sampling procedure. These stages are :
i) Thanas are selected at first stage,
(ii) Unions/Wards are selected at second stage and
(iii) mouza/mahalla are selected at third stage. Then PSU/EBs are determined from the selected mouza by dividing the mouza or by combining a neighboring mouza with the selected mouza so as to make the size of the PSU/EB of around 200 households.
Note: See detailed sampling design in survey report which is presented in this documentation
Dates of Data Collection (YYYY/MM/DD)
Mode of data collection
Preliminary checking of entries in the filled-in questionnaires were done by the supervisors and enumerators at field level. Thorough manual editing was carried out by the trained editors under the strict supervision of the officers in Dhaka headquarter. Coding of occupation and industry was done as per Bangladesh Standard Occupation Classification (BSOC) and Bangladesh Standard Industrial Classification (BSIC) at 3 and 4 digit level respectively. Other items, such as, geo-codes and open-ended answers, were also coded in accordance with their respective code lists.
The edited and coded questionnaires were sent to Computer Wing, BBS for data processing. Computer edit was done to check internal consistency, omissions and errors. The statistical tables were produced in micro computer environment of the BBS. Each individual record was tallied and expanded using sample weights to obtain national estimate. The weights were calculated on the basis of the estimated population as on January 1, 2003.