Samoa National Population and Housing Census 2006
Samoa, 2006
Identification
DDI-WSM-SBS-NPHC-2006-v1.0
Samoa National Population and Housing Census 2006
PHC 2006
Tusigaigoa o Tagata ma Fale, 2006
| Name | Country code |
|---|---|
| Samoa | WSM |
Population and Housing Census [hh/popcen]
The PHC 2006 is the latest of the 5-yearly series of PHC reports since 1951. PHC are designed by the Samoa Bureau of Staistics (SBS) which was originally known as the Department of Statistics (DOS)and also the Division of Statistical Services under the Ministry of Finance.
In the PHC 2006, many questions and indicators are consistent and compatible with prior census. A number of new indicators have also been added over the years while some were removed depending on national data needs.
The PHC 2006 provides a population count of all people that resided in Samoa on the 6th of November, 2006. It collected a range of socio-economic and demographic information pertaining to household members and their associated housing facilities and household status. The information were used to develop statistical indicators to support national plannning and policy-making and also to monitor MDG indicators and all other related conventions. This included population growth rates, educational attainment, employment rates, fertility rates, mortality rates, internal movements, household access to water supply, electricity, sanitation, and many other information. The full report is available at SBS website: http://www.sbs.gov.ws under the section on Publications and Reports.
Census/enumeration data [cen]
Private households
Institution households
Individuals
Women 15-49
Housing facilities
Version
Version 2.0 - This file is cleaned and anonymized for Public Use FIle
2008-07
This is the final version of the dataset which is released for public use. Original versions are only for office use.
Scope
The scope of the PHC 2006 includes:
Individual demographic characteristics
Population education
Population employment
Fertility
Mortality
Population internal movements and migration
Household housing facilities and accessibility to socio-economic services
| Topic | Vocabulary | URI |
|---|---|---|
| DEMOGRAPHY AND POPULATION [14] | CESSDA | http://www.nesstar.org/rdf/common |
| EDUCATION [6] | CESSDA | http://www.nesstar.org/rdf/common |
| LABOUR AND EMPLOYMENT [3] | CESSDA | http://www.nesstar.org/rdf/common |
| HEALTH [8] | CESSDA | http://www.nesstar.org/rdf/common |
| HOUSING AND LAND USE PLANNING [10] | CESSDA | http://www.nesstar.org/rdf/common |
Coverage
National coverage
The lowest level of coverage is village level
The PHC covered all de facto household members, institutional households such as boarding schools, hospitals, prison inmates, expatriats residing in Samoa for more than 3 months and also all women 15-49 years .The PHC excluded tourists visiting Samoa and Samoans living overseas.
Producers and sponsors
| Name | Affiliation |
|---|---|
| Samoa Bureau of Statistics | Government of Samoa |
| Name | Abbreviation | Role |
|---|---|---|
| Government of Samoa | WSM | Shared funding |
| AusAID | AusAID | Shared funding |
| Name | Affiliation | Role |
|---|---|---|
| Ministry of Education, Sports and Culture | Government of Samoa | Provided Teachers as Census Supervisors and Enumerators |
| Ministry of Women, Community and Social Development | Government of Samoa | Advocate for census enumeration in the villages |
| Ministry of Justice and Court Administration | Government of Samoa | Vehicle for supervision of census enumeration |
| Public Service Commission | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Women, Community and Social Development | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Works, Transport and Infrastructure | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Education, Sports and Culture | Government of Samoa | Vehicle for supervision of census enumeration |
| Samoa Accident Compensation Board | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Prime Minister and Cabinet | Government of Samoa | Vehicle for supervision of census enumeration |
| Samoa Shipping Corporation | Government of Samoa | Vehicle for supervision of census enumeration |
| Office of the Electoral Commission | Government of Samoa | Vehicle for supervision of census enumeration |
| Samoa Land Corporation | Government of Samoa | Vehicle for supervision of census enumeration |
| Audit | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Communication, Information and Technology | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Finance | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Revenue | Government of Samoa | Vehicle for supervision of census enumeration |
| Samoa Water Authority | Government of Samoa | Vehicle for supervision of census enumeration |
| Ministry of Agriculture and Fisheries | Government of Samoa | Vehicle for supervision of census enumeration |
| Electrical Power Corporation | Government of Samoa | Vehicle for supervision of census enumeration |
Sampling
Not applicable to census-undertaking
Not applicable to census-undertaking
Not applicable to census-undertaking
Not applicable to census-undertaking
Survey instrument
The PHC 2006 questionnaire was developed on the basis of the PHC 2001 with some modifications and additions. The Questionnaire has separate A-3 page for the Population questionnaire and a separate A4 page for the Housing questionnaire.
A Population questionnaire was administered in each household, which collected various information on household members including age, sex, citizenship, ethnicity, orphanhood, marital status, matai status, disability, language of communication, residence (birth, usual, previous), religion, education and employment.
In the Population questionnaire, a special section was administered in each household for women age 15-49, which also asked information on their children ever born still living, died or living somewhere else. Mothers of children under one year were also asked whether they have immunized their babies for measles and rubella.
The Housing questionnaire was also administered in each household which collected information on the types of building the household lived, floor materials, wall materials, roof materials, land tenure, house tenure, water supply, drinking water, lighting, cooking fuel, waste disposal, toilet facility, telephone, computer, internet, cell phones, homezone phone, refrigerator, radio, television, play-station or kidz video games, vehicle, and also the household three main sources of income.
In the Housing questionnaire, a special section was designed to capture household deaths and maternal deaths between November 2004-2006 including the deceased's sex, age at death, and ,the main cause of death.
Like field allocation, the data processing was also organized in clusters adoptng the four major regions in Samoa. Each region contains a number of political districts, each district contains a number of villages and each village has a number of enumeration areas. Each level follows a sequence order from 1 to the highest number.
Data were processed accoding to clusters with each cluster being processed as a complete unit through each stage of data processing. Each cluster goes through the following steps:
- Questionnaire reception
- Office editing and coding
- Data entry
- Structure and completeness checking
- Verification entry
- Comparison of verification data
- Back up of raw data
- Secondary editing
- Edited data back up
After all clusters are processed, all data is concatenated together and then the following steps are completed for all data files:
10) Compile dataset in CSpro 3.3 and run frequency tables for all variables
11) Recoding of variables needed for analysis/report
12) Structural checking
13) Data quality tabulations
16) Production of analysis tabulations
Details of each of these steps can be found in the data processing documentation, data editing guidelines, data processing programs in CSPro and tabulation guidelines.
Data entry was conducted by 10 data entry operators in full-time shifts, supervised by 2 data entry supervisors, using a total of 12 computers (10 data entry computers plus 2 supervisors' computer). All data entry was conducted at the SBS office using manual data entry. For data entry, CSPro version 3.3 was used with a highly structured data entry program, using system controlled approach that controlled entry of each variable. All range checks and skips were controlled by the program and operators could not override these. A limited set of consistency checks were also included in the data entry program. Open-ended responses ("Other" answers) were coded and entered.
Structure and completeness checking ensured that all questionnaires for the cluster had been entered, were structurally sound, and that women's questionnaires existed for each eligible woman.
50% verification of all variables was performed using independent verification, i.e. double entry of data, with separate comparison of data followed by modification of one or both datasets to correct keying errors by original operators who first keyed the files.
After completion of all processing in CSPro, all individual cluster files were backed up before concatenating data together using the CSPro file concatenate utility. The CsPro was used to run analysis tables and further analysis were conducted in other software like the MORTPAK and FERT.
Certain variables were recoded for use as background characteristics in the tabulation of the data, including grouping age, education, geographic areas as needed for analysis.
Data collection
| Start | End | Cycle |
|---|---|---|
| 2006-10-31 | 2006-11-14 | 5-yearly period |
- Face-to-face [f2f]
| Name | Affiliation | Abbreviation |
|---|---|---|
| School inspectors and school teachers | Ministry of Education, Sports and Culture | MESC |
| SBS full-time staffs | SBS | SBS |
| SBS part-time employees | SBS | SBS |
Interviewing was conducted by teams of enumerators. Each interviewing team comprised of field editors from the SBS main office and a supervisor, and a driver. Each supervisor used a 4 wheel drive pick-up or van to travel from village to village and where necessary within his allocated district.
The role of the supervisor was to coordinate field data collection activities in their allocated areas, checked the enumerators work, solved refusal problems when arised, and also prepared a summary statistical report of all household members in each household that have been enumerated by the enumerators. These summary reports helped SBS to prepare the Preliminary count of the Population which is normally released within a month after the actual enumeration period or before the normal data processing started.
SBS managed and distributed all supplies and equipment, finances, maps and listings, and also coordinated arrangements for accommodation and travel. Additionally, the SBS field editors worked with the supervisors in checking the enumerators work during and after the enumeration, and then collected and took the completed questionnaires to SBS main office and prepared progress reports on the enumeration coverage.
The overall coordination of Supervision is lead by the Assistant Chief Executive Officer(ACEO) of Census-Surveys and her staffs with the executive support given by the Government Statistician/CEO.
The field listing and mapping of all households in Samoa took place from July 2005 - April 2007. All listing and map editings were completed by September 2006.
The Questionnaire was designed from January-June 2006 and was pre- tested in July 2006 in the village of Levi, Saleimoa. The questionnaire was in English but all Samoan translations were in the Manual of Instructions.The main language used in the interviews was Samoan and English was used when needed especially residing expatriats and English-speaking Samoan families.
The Enumerators first trainings took place from September 4th - 2nd of October, 2006 and followed by the Supervisors training on the 13th of October, 2006.
The final training for all Supervisors and Enumerators in Upolu was held on the 23rd of October 2006, followed by the final training for Savaii island on the 25th of the same month. The final trainings included the distribution of all census questionrnaires and materials to Supervisors and Enumerators.
Samoa has a total of 48 pollitical districts of which a total of 35 Supervisors were allocated to one or two districts to supervise. Likewise a total of 1,250 enumerators were allocated to 848 enumeration areas (EA). Given that some EA were bigger than others, two to four enumerators worked in one EA with a maximum of 30 households per enumerator. An average of 3 households can be interviewed by the teachers in the afternoons after their school working hours.
The SBS Census-Survey division was fully responsible for the overall coordination of the field supervision and enumeration. The staffs mainly assisted the hired Supervisors in checking the quality of the Enumerators work due to the large number of enumerators under their supervision. The staffs also carried out spot checks on the field to monitor the coverage of enumeration.
Data processing
how to edit on field and in the office to data processing
Data editing took place at a number of stages throughout the processing, including:
a) Office editing and coding
b) During data entry
c) Structure checking and completeness
d) Secondary editing
e) Structural checking of SPSS data files
Detailed documentation of the editing of data can be found in the "Data processing guidelines" document provided as an external resource.
At SBS, a team of Office editors was responsible for reviewing each completed questionnaire that came into the office and checking for missed questions, skip errors, fields incorrectly completed, and checking for inconsistencies in the data. In problematic EA, the Office editors liased with the ACEO:Census-Survey and recommended re-enumeration in areas where coverage was not good or quality of the questionnaire was poor. In 2006, the re-enumeration was carried out in some of the villages in the Apia urban region and some areas of Vaitele mainly due to the unavailability of household members during the allocated enumeration period, and, also due to poor quality of data collection.
On the other hand, the good completed questionnaires were passed on by the Office editors to the Office coders who then performed their coding processes of all the questionnaires in a sequential order. After each questionnaire is coded, the Office coders recorded their dates of completion and then passed on the coded questionnaires to the Data processing team for their controls and data entry processes.
The Data processing team is lead by the Computer Manager and Programmer who also works closely with the ACEO Census-Surveys in monitoring the flow of work. The Computer Manager/Programmer designed the data entry and editing programs, conducted the data entry training and then monitored the data entry and made progress reports. Any problems relating to coding at the data entry will be reported to the ACEO Census-Surveys for improvement.
The Computer Manager/Programmer ran data structural checkings and monitored completeness of data entries. Data verfication had also been closely monitored and double data entry was made at 50%. The ACEO Census-Surveys produced the Tabulation plan in which the Computer Programmer also used to monitor structural checks and data quality.
Any detalied information can be asked directly to the Computer Progammer/Manager of SBS or check into our website at http://www.sbs.gov.ws
Data appraisal
Not applicable to census-undertaking
Data Access
| Name | Affiliation | URL | |
|---|---|---|---|
| Computer Programmer | SBS | http://www.sbs.gov.ws | info.stats@sbs.gov.ws |
| Is signing of a confidentiality declaration required? | Confidentiality declaration text |
|---|---|
| yes | Confidentiality of respondents is guaranteed by the Statistics Act 1971. Before being granted access to the dataset, all users have to formally agree: 1. To make no copies of any files or portions of files to which s/he is granted access except those authorized by the data depositor. 2. Not to use any technique in an attempt to learn the identity of any person or establishment not identified on public use data files. 3. To hold in strictest confidence the identification of any establishment or individual that may be inadvertently revealed in any documents or discussion, or analysis. Such inadvertent identification revealed in her/his analysis will be immediately brought to the attention of the data depositor. This statement does not replace a more comprehensive data agreement (see Access condition). |
Licensed datasets, accessible under 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:
- The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement of the Samoa Bureau of Statistics (SBS)
- 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.
- 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 SBS.
- No attempt will be made to produce links among datasets provided by the SBS or among data from other datasets that could identify individuals or organizations.
- Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from SBS will cite the source of data in accordance with the Citation Requirement provided with each dataset.
- An electronic copy of all reports and publications based on the requested data will be sent to SBS
The original collector of the data, which is SBS and the relevant funding agencies bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
"Samoa Bureau of Statistics and AusAID, Population and Housing Census 2006 version 1.0 of the public use file (July 2008), provided by Samoa Bureau of Statistics: www.sbs.gov.ws"
Disclaimer and copyrights
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Computer Manager and Programmer | SBS | info.stats@sbs.gov.ws | http://www.sbs.gov.ws |
Metadata production
DDI-WSM-SBS-NPHC-2006-v1.0
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Samoa Bureau of Statistics | SBS | SBS | Documentation of the PHC 2006 |
2024-10-31T11:00:00.000Z
Metadata version
Version 1.0 - This is the first documentation of the PHC 2006.