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    Home / Central Data Catalog / KHM-NIS-LF-2000-V01
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Cambodia Labor Force Survey 2000

Cambodia, 2000
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Reference ID
KHM-NIS-LF-2000-v01
Producer(s)
National Institute of Statistics
Metadata
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Created on
Jan 07, 2021
Last modified
Jan 08, 2021
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  • Study Description
  • Data Dictionary
  • Downloads
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  • Identification
  • Version
  • Scope
  • Coverage
  • Producers and sponsors
  • Sampling
  • Survey instrument
  • Data collection
  • Data processing
  • Data appraisal
  • Data Access
  • Disclaimer and copyrights
  • Contacts
  • Metadata production
  • Identification

    Survey ID number

    KHM-NIS-LF-2000-v01

    Title

    Cambodia Labor Force Survey 2000

    Translated Title

    Angkat Kamlaing Pulkam 2000

    Country
    Name Country code
    Cambodia KHM
    Study type

    Labor Force Survey [hh/lfs]

    Series Information

    The Labor Force Survey (LFS) of Cambodia conducted in November 2000 is the first of the series of nationwide labor force surveys. Its primary purpose was to gather data on labor force and employment levels and structures needed for national accounts estimation. The results of the survey are intended for national account estimation and for providing a quantitative framework for planning and policy formulation affecting the labor market.

    Abstract

    The Labor Force Survey (LFS) of Cambodia conducted in November 2000 is the first of the series of nationwide labor force surveys. Its primary purpose was to gather data on labor force and employment levels and structures needed for national accounts estimation. The results of the survey are intended for national account estimation and for providing a quantitative framework for planning and policy formulation affecting the labor market.

    Kind of Data

    Sample survey data [ssd]

    Unit of Analysis

    Individuals

    Version

    Version Description
    • v01: Edited and anonymized data.
    Version Date

    2000-09-18

    Scope

    Notes

    The scope of the survey with respect to items of information is as follows:

    1. Part I - For all persons

         a)  Relationship to Household Head
      
         b)  Age
      
         c)  Sex
    2. Part II - For Persons 10 Years Old and Over

         a) Education (Current School Attendance and Highest Educational Attainment) 
      
         b) Current Activity (Past Week) 
      
         c) Primary Occupation
      
         d) Economic Activity or Industry
      
         e) Nature and Status of Employment
      
         f)  Remuneration, Earnings and Commissions
      
         g) Hours Worked 
      
         h) Availability for / Seeking Additional Work
      
         i)  Reasons for not Being Available for Work
    Topics
    Topic Vocabulary URI
    LABOUR AND EMPLOYMENT [3] CESSDA http://www.nesstar.org/rdf/common
    EDUCATION [6] CESSDA http://www.nesstar.org/rdf/common

    Coverage

    Geographic Coverage

    National, Urban, Rural, All of provinces in Cambodia (24 Provinces)

    Geographic Unit

    Domain for LFS 2000 is the province. The study covers 24 domains, namely:

    1 Banteay Meanchey

    2 Battambang

    3 Kampong Cham

    4 Kampong Chhnang

    5 Kampong Speu

    6 Kampong Thom

    7 Kampot

    8 Kandal

    9 Koh Kong

    10 Kratie

    11 Mondul Kiri

    12 Phnom Penh

    13 Preah Vihear

    14 Prey Veng

    15 Pursat

    16 Ratanak Kiri

    17 Siemreap

    18 Sihanoukville

    19 Stung Treng

    20 Svay Rieng

    21 Takeo

    22 Oddar Meanchey

    23 Kep

    24 Pailin

    Universe

    The survey covered the members (individuals) from the sample households of resident households in Cambodia:

    1. All members for geographic part from the sample households of resident households

    2. All members aged 10 and over for education and labour force parts from the sample households of resident households

    Producers and sponsors

    Primary investigators
    Name Affiliation
    National Institute of Statistics Ministry of Planning
    Funding Agency/Sponsor
    Name Role
    Asian Development Bank Funding and TA
    Other Identifications/Acknowledgments
    Name Affiliation Role
    Dr. V.N. Gnanathurai Asian Development Bank Assistant Chief Economist
    Dr. Bishnu Dev Pant Asian Development Bank Development Indicators and Policy Research Division, Economic Research Department
    Ms. G. Cubinar Asian Development Bank Survey Management and Methodology Consultant

    Sampling

    Sampling Procedure

    The LFS adopts a stratified two-stage systematic sampling design with villages as the primary sampling units (PSUs) and households as secondary sampling units (SSUs). In each village, a systematic sample of 10 households were taken.

    The sample consisted of 500 villages sampled from the truncated 1999 CSES sampling frame. Then from each sample village, a fix sample of 10 households was taken using circular systematic sampling with random start. It covered 500 sample villages or a total of 5000 sample households nationwide

    Response Rate

    Despite the length of the questionnaire, the respondents cooperated with the survey staff and provided answers to both questionnaires and it was possible to achieve a 100% response rate. At this stage it is not possible to comment on item non-response, and completeness of information provided by the respondents, and the respondent's fatigue arising from the length of the interviews which may have had a bearing on these issues.

    Weighting

    The sampling design used in LF 2000 is not self-weighting. Therefore it was necessary to calculate the weights or inflation factors applicable to both villages and households of each sampled village, before the data for villages or households were aggregated. The weights for estimation of the aggregates were computed (or the villages and households in the 24 domains,or 24 provinces, into which the country is divided. The need to adjust the weights for non-response did not arise as completed questionnaires from all sampled villages and households were retrieved achieving a 100% response rate. Inflation factors were checked for each domain by comparison of the sum of the weighting factors of all sampled households which constitute an estimate of the total number of households in the domain against the total number of households for the domain in the sampling frame. The weighting factors (WEIGHT) with the corresponding identifiers of villages and households were fed as an input into the computer to be merged with the data files.

    Survey instrument

    Questionnaires

    The following are the LFS forms used during the field enumeration and a brief outline of the fieldwork procedures:

    2.1 Listing Sheet (LFS Form 1)

    This is a sheet containing a list the buildings, housing units and households within an enumeration area (EA). Other information pertaining to population of households were also recorded.

    Listing sheet was used to record all households in the village or part thereof selected for household enumeration. The current list of households was necessary for sampling households and also as an input to derive household weights

    2.2 Questionnaire (LFS Form 2)

    This is the form used for interviewing and recording information about a household. This questionnaire also contains information on the demographic and economic characteristics of the population.

    1. Part I - For all persons

    a) Relationship to Household Head

    b) Age

    c) Sex

    1. Part II - For Persons 10 Years and Over

    a) Education (Current School Attendance and Highest Educational Attainment)

    b) Current Activity (Past Week)

    c) Primary Occupation

    d) Economic Activity or Industry

    e) Nature and Status of Employment

    f) Remuneration, Earnings and Commissions Received

    g) Hours Worked

    h) Availability for /Seeking Additional Work

    i) Reasons for not Being Available for Work

    Data collection

    Dates of Data Collection
    Start End
    2000-11-29 2000-12-12
    Data Collectors
    Name Affiliation
    National Institute of Statistics Ministry of Planning
    Supervision

    The field control procedures provided for the supervisors to inspect and make on the spot checks while the interview was being conducted and they were also required to re-interview a sub-sample of the households already interviewed by the enumerators under his supervision. To ensure effective supervision through inspections and re-interviews, adequate funds were allocated for the payment of honoraria to supervisors for their supervisory duties. Some of the core group staff functioned as area coordinators and they were in over all charge of supervision as well as the coordination of the areas assigned to them.

    Data Collection Notes

    Field data collection for the LFS consists of the following major activities :

          1. Mapping - Drawing a sketch map of the EA (an entire village or a segment) taking into account  the boundaries and physical features of the EA. 
    
          2. Canvassing - Door to door visit in the entire EA to look for enumeration units (households) to be listed to ensure a complete coverage of the area.  
    
          3. Listing - Listing of the households using LFS Form 1.
    
          4. Plotting - Indicating the listed buildings and households on the EA map using specified symbols.
    
          5. Enumeration - Interviewing and accomplishing of LFS Form 2

    Field enumeratiors' and supervisors' and coordinator trained was conduted for two days. A total of 130 staff were trained, consisting of 95 enumerators, 34 supervisors and one coordinator. Each interviewer was assigned selected villages based on the sampling procedure. In order to complete the data collection activity within the planned time frame, each enumerator was assigned about 40 to 70 households in four to six villages. The questionnaires were filled by the method of personal interview.

    A pre-listing of households was undertaken by the enumerator to generate the current list of households, which was essential to select the sample households based on the systematic sampling procedure. In addition to preparing a current list of buildings, housing units and households certain additional information such as the number of household members, principal economic activity of the household was also collected.

    After the selection of sample households, the selected households were revisited to interview one or more responsible members of the household to fill in the questionnaire.

    Data processing

    Data Editing

    All completed questionnaires were brought to NIS for processing. Although completed questionnaires were checked and edited by supervisors in the field, specially because of the length of questionnaires and the complexity of the topics covered the need for manual editing and coding by trained staff was accepted as an essential priority activity to produce a cleaned data file without delay. In all 4 staff comprising 3 processing staff and 1 supervisor were trained for two days by the project staff. An instruction manual for manual editing and coding was prepared and translated into Khmer for the guidance of processing staff.

    In order to produce an unedited data file, keying in the data as recorded by field enumerators and supervisors, (without subjecting data to manual edit as required by the Analysis Component Project staff), it was necessary to structure manual editing as a two-phase operation. Thus in the first phase, the processing staff coded the questions such as those industry, and occupation which required coding. Editing was restricted to selected structural edits and some error corrections. These edits were restricted to checking the completeness and consistency of responses, legibility, and totaling of selected questions. Error corrections were made without canceling or obliterating the original entry made by the enumerator, by inserting the correction close to the original entry.

    Much of the manual editing was carried out in the second phase, after key entry and one hundred percent verification and extraction of error print outs. A wide range of errors had to be corrected which was expected in view of the complexity of the survey and the skill background of the enumeration and processing staff. The manual edits involved the correction of errors arising from incorrect key entry, in-correct/ failure to include identification, miss-coding of answers, failure to follow skip patterns, misinterpretation of measures, range errors, and other consistency errors.

    Data appraisal

    Estimates of Sampling Error

    Sampling errors are those that are related to the size of the sample and the kind of samples selected. Non-sampling errors are those such as arising from errors committed by the interviewers in recording information, response errors and encoding or processing errors.

    The results obtained from the survey are subject to sampling errors. Sampling errors in surveys occur as a result of limiting the survey observations to a subset rather than the whole population. These errors are related to the sample size selected and sampling design adopted in the survey. In order to maintain these errors within acceptable levels, the efficient sampling design with the sample allocation described earlier was adopted.

    In addition to sampling errors, the estimates are also subject to non-sampling errors that arise in different stages of any survey operation. These include errors that are introduced at the preparatory stage errors committed during data collection including those committed by interviewers and respondents processing errors

    The first item includes errors arising from questionnaire design, preparation of definitions and instructions, preparation of table formats etc. The other two categories are clear from the terminology used. The use of trained enumerators and processing staff and careful organization and thorough supervision are essential to control and minimize these errors.

    As already referred to, it was possible to obtain responses from all the villages and

    households that were sampled, and thus it was not necessary to adjust the data for non-response. Thus the bias that is introduced into the estimates as a result of non-response was avoided.

    Data Access

    Access authority
    Name Affiliation URL Email
    Director General National Institute of Statistics www.nis.gov.kh sythan@forum.org.kh
    Director, ICT Department National Institute of Statistics www.nis.gov.kh slundy@nis.gov.kh
    Confidentiality
    Is signing of a confidentiality declaration required? Confidentiality declaration text
    yes The Statistics Law Article 22 specifies matters of confidentiality. It explicitly says that all staff working with statistics within the Government of Cambodia "shall ensure confidentiality of all individual information obtained from respondents, except under special circumstances with the consent of the Minister of Planning. The information collected under this Law is to be used only for statistical purposes."
    Access conditions
    1. The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement of the National Institute of Statistics.

    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. Any such discovery would immediately be reported to the National Institute of Statistics.

    4. No attempt will be made to produce links among datasets provided by the National Institute of Statistics, or among data from the National Institute of Statistics 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 National Institute of Statistics 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 National Institute of Statistics.

    Citation requirements

    "National Institute of Statistics of Ministry of Planning of Cambodia Labor Force Survey 2000(LF 2000), Version1.0 of the public use dataset (November 2000), provide by the National Institute of Statistics. www.nis.gov.kh"

    Disclaimer and copyrights

    Disclaimer

    The user of the data acknowledges that the National Institute of Statistics, Cambodia bears no responsibility for use of the data or for interpretations or inferences based upon such uses.

    Copyright

    (c) 2000, National Institute of Statistics

    Contacts

    Contacts
    Name Affiliation Email URL
    Director, Demographic Statistics Census and Survey Department National Institute of Statistics census@camnet.com.kh www.nis.gov.kh
    Data User Service Center National Institute of Statistics dusc@nis.gov.kh www.nis.gov.kh

    Metadata production

    DDI Document ID

    DDI-KHM-NIS-LF-2000-v13

    Producers
    Name Affiliation Role
    Lim Penh National Institute of Statistics Archivist
    Suy Sotheara National Institute of Statistics Archivist
    Saint Lundy National Institute of Statistics Archivist
    Date of Metadata Production

    2009-09-28

    Metadata version

    DDI Document version

    Version 1.4 (October 2012): Further edits.

    Version 1.3 (July 2010): Further edits.

    Version 1.2 (Jan 2010). This contains edits by documenter based on comments by reviewer.

    Version 1.1 (Sep 2009). This version contains revisions to the original DDI document.

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