SPC_TON_2011_PHC_v01_M
Population and Housing Census 2011
Tohi Kakai Fakafonua - Pule'anga Tonga 2011
Name | Country code |
---|---|
Tonga | TON |
Population and Housing Census [hh/popcen]
The National Population and Household Census has been taken in Tonga as far back as 1891, though it was not carried out on regular census intervals. It was in 1956 that the census began being taken every 10 years. The 2011 Tonga Census of Population and Housing is the seventh round of the census surveys since then. The census was initially undertaken every ten years, but the 2011 census marks the start of the transition towards a five yearly population census. The last census was undertaken in 2006.
Many questions and indicators in the 2011 Tonga census are consistent and compatible with the 1996 and 2006 Tonga censuses. However, there have been a number of small changes in definitions of indicators between censuses. The 2011 Tonga census includes more detailed information on people with education and the labour force. Last but not least, electoral voter questions were added due to Boundary commission's request.
The Census is the official count of population, dwellings and households in Tonga and it provides a ‘snapshot’ of the country at one specific point in time: 30th of November 2011. A Tonga census has been taken once in every ten years since 1956. However the population census of 2011 is the first population census by 5 year interval from the previous census in 2006 due to the Electoral Boundary Commission (EBC)'s request according to its Act 2010.
The census provides a unique source of detailed demographic, social and economic data relating the entire population and its most precious resource of its people. This information is used for policy making and planning, monitoring and evaluation, research and other decision-making.
The census is often the primary source of information such as used for allocation of public funding, especially in areas such as health, education and social policy. The main users of this information are the government, local authorities, education facilities (such as schools and tertiary organizations), businesses, community organizations and the public in general.
Census/enumeration data [cen]
Household and Individual.
v01: Edited cleaned version of the Master file (after processing version). Labelling of values and variables done.
2011-11-30
The final version after some changes made to reviewed dataset (labelled dataset and unique ID).
The scope of the 2011 Tonga Census of Population and Housing includes:
Topic | Vocabulary |
---|---|
Population & Reproductive Health | World Bank |
Education | World Bank |
Primary Education | World Bank |
Secondary Education | World Bank |
Tertiary Education | World Bank |
Vocational Education | World Bank |
Migration & Remittances | World Bank |
Disability | World Bank |
Energy | World Bank |
National coverage: the 2011 Tonga Census of Population and Housing cover the whole of the Kingdom of Tonga, which includes every islands of the 5 divisions and in both urban and rural areas.
The main objective of the census is to record the people in Tonga at one particular point in time, i.e. the night of Wednesday 30th November 2011 or exactly, the 30th November before it changes at midnight to 1st December. All persons alive in Tonga on Census night are to be included. Babies born before midnight on 30th November are to be included and persons who die before midnight on Census night are to be excluded.
Name | Affiliation |
---|---|
Tonga Department of Statistics | Government of Tonga |
Name | Affiliation | Role |
---|---|---|
Sione Lolohea | Tonga Department of Statistics | Census coordinator, questionnaire designer and head of data processing |
'Unaloto Vaka'uta | Tonga Department of Statistics | Data collection coordinator |
Nicholas McTurk | Secretariat of the Pacific Community | Technical assistance in data analysis |
Leilua Taulealo | Secretariat of the Pacific Community | Technical assistance in data processing |
Lu'isa Koloamatangi | Tonga Department of Statistics | Data processing supervisor |
Vaimoana Soakimi | Tonga Department of Statistics | Data processing supervisor |
Name | Role |
---|---|
Australian Agency for International Development | Donor Fund |
Government of Tonga | Shared Funding |
Name | Affiliation | Role |
---|---|---|
Pacific Community | Technical assistance and adminstrative work | |
Tonga Power | Government of Tonga | Contribution to publicity of census |
Tonga Broadcasting Commission | Government of Tonga | Contribution to publicity of census |
Tonga Communication Commission | Government of Tonga | Contribution to publicity and field work of census |
Education officers | Ministry of Education | Trainers and supervisors |
Primary school teachers | Ministry of Education | Enumerators |
There is no sampling for the population census since it is a full enumeration.
Not Applicable
The questionnaires for the 2011 Tonga Census of Population and Housing were structured based on the one from 2006 Tonga Census of Population and Housing with some modifications and additions. There were mainly two questionnaires, one is the household questionnaire and the other is the personal questionnaire.
The household questionnaire was designed for each household to collect various information of the dwelling's characteristics, housing utilities and durable goods, household waste disposal, information technology, income, remittances and the mortality.
The personal questionnaire includes personal characteristics, migration, disability, smoking habit, education, labour and employment, voting eligibility, and fertility. Some questions has age restrictions like the education and qualification, literacy, smoking habits questions were ask to 5 years and older only. Labour, employment and fertility questions were for 15 years and older only. And the electoral vote questions were eligible only for 22 years and older e.g. for those that turned 21 in November 2010.
This questionnaire is split into 3 categories and form 3 questionnaires:
All questionnaires were published in both English and Tongan and were both piloted as part of the survey pre-test.
All questionnaires and modules are provided as external resources.
Start | End | Cycle |
---|---|---|
2011-11-28 | 2011-11-30 | Prelisting and update of Census Block Number (CBN) map and get familiar with boundary of census block |
2011-12-01 | 2011-12-06 | Enumeration or field work |
2011-12-07 | 2011-12-08 | Enumerators' census materials final checkup, submission of work to supervisor, supervisor check if materials and submit to DCO |
2011-12-08 | 2011-12-08 | DCO check of materials and submit to statistics head office |
2011-12-09 | 2011-12-09 | Enumeration completed |
No specific time as its quite flexible as long as it does not disturb the respondents for that reason, during day time is mainly appropriate.
Start date | End date | Cycle |
---|---|---|
2011-11-30 | 2016-11-30 | 5 years of data being valid |
Name | Affiliation |
---|---|
Primary school teachers | Ministry of Education |
Education officers | Ministry of Education |
Permanent and temporary staff | Tonga Department of Statistics |
Interviewing was conducted by teams of interviewers. Each interviewing team comprised of the ratio of 1 supervisor to 5 enumerators in estimation of one enumerator per EA or census block.
The selection of Supervisors was made from primary school teachers and education officers. Where possible, the teacher or officer who resided or close to a particular census block was the enumerator of that block. This was an additional asset due to the local knowledge of the teacher about the census block boundaries and its residents.
The role of the supervisor was to coordinate field data collection activities including the supervise of census enumerators, help solve unforeseen problems in the field that the enumerators face, and report to District census officers if an enumerators is not available. Additionally, the field supervisor assigned the work to the interviewers, spot checked work, maintained field control documents, and sent completed questionnaires to the District census officers. Also responsible for reviewing each questionnaire submitted to them by the enumerators, checking for missed questions, skip errors, fields incorrectly completed, and checking for inconsistencies in the data. Supervisors are to visit census enumerators daily.
Responsibilities of the supervisors are described in the Field Supervisor's Manual together with the different field controls that were in place to control the quality of the fieldwork.
Pilot or pre-test for the census took place on the 22nd September, 2011 - 26th September, 2011 to ensure that training materials for the trainers and enumerators as well are effective and that questionnaire forms and questions asked are understandable to the respondent in order to yield the required information. The other significant of this exercise is to test the system such as screen for data input, dictionary and the data set, skip and edit. It was conducted by 6 enumerators in 3 census blocks from two districts in Tongatapu. They spent approximately 30 - 40 minutes per household in approximately 10-13 household a day.
Before the actual enumeration, trainings were held, first the in-house training for Statistics department's staff in November 1st, 2011- November 4th, 2011, followed by the training of trainers from November 8th, 2011 - November 11th, 2011 and lastly the of supervisor and enumerators were held on Thursday 17th to Friday to 25th November, 2011: 7 days as the first 5 days consist of class rooms lecturing and questionnaire practices. The last two days are assigned for field practices.
The main census enumeration's data collection took place over a period of about 2 weeks from the 28th November, 2011 - 9th December, 2011. Each interviewing team comprised of the ratio of 1 supervisor to 5 enumerators in estimation of one enumerator per EA or census block. Interviewing took place everyday throughout the fieldwork period except Sunday.
The amount of time spent on Interviewing a household was averaging 30-40 minutes, depending on the on the number of people in the household. Interviews were conducted primarily in either Tongan or English, whichever the respondent prefer, and translator was used when respondent did not understand neither e.g. Chinese translator requested to Chinese Embassy for translation.
Data editing took place at a number of stages throughout the processing, including:
The software used in processing the data was CSPro 4.1
Name | Affiliation | URL | |
---|---|---|---|
Head of department | Tonga Department of Statistics | http://tonga.prism.spc.int/ | [email protected] |
Is signing of a confidentiality declaration required? | Confidentiality declaration text |
---|---|
yes | By law, under the Statistics Act, personal information provided by respondents to the Statistics Department of Tonga must remain confidential. The Statistics Act 31 of 1978 and as detailed on the Census Regulation of 2011assures that all personal information collected on the census will be kept strictly confidential. The act prohibits data collectors and handlers not to disclose any information regarding an individual to any person, business, agency or other department of the government. |
Licensed datasets.
"National Statistics Office of Tonga, Population and Housing Census 2011 (PHC 2011), Version 01 of the licensed datasets (November 2011), provided by the Pacific Microdata Library. http://pdl.spc.int/index.php/catalog"
The user of the data acknowledges that the Tonga Department of Statistics and the Secretariat of the Pacific Community bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
(c) 2016, Tonga Department of Statistics
Name | Affiliation | URL | |
---|---|---|---|
Head, Data Processing Unit | Tonga Department of Statistics | [email protected] | http://tonga.prism.spc.int/ |
DDI_SPC_TON_2011_PHC_v01_M
Name | Affiliation | Role |
---|---|---|
Tonga Department of Statistics | Tonga Government | Documentation of the study |
Statistics for Development Division | Pacific Community | DOcumentation of the study |
2018-02-05
Version 01: (July 2013). This version was the result of exercise of first using the metadata tool
Version 02: (July 2016). This version is the reviewed version of the Version 01. Done by the Tonga Statistics Department.
Version 03: (February 2019). Reviewed version of the Version 02. Done by the Statistics for Development Division.