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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | National Statistics Office - Malta |
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1.2. Contact organisation unit | Unit 01: Methodology and Research Unit |
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1.5. Contact mail address | National Statistics Office, Lascaris Valletta VLT 2000 |
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2.1. Metadata last certified | 24/03/2014 | ||
2.2. Metadata last posted | 24/03/2014 | ||
2.3. Metadata last update | 24/03/2014 |
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3.1. Data description | |||
The Census of Population and Housing is a form of national stocktaking which provides a complete count of the population and living quarters. It is one of the oldest and most reliable sources of information about the count, characteristics, composition and condition of the population in a country. The Census covers a wide spectrum of variables including the size of the population, age structure, citizenships and nationalities, educational attainment, economic activity, disability, housing, and household amenities as well as other major socio-economic characteristics. Census results influence a number of aspects of Maltese life: public policy-making; options and decisions of families and households; choices made by the elderly; initiatives and investments by the business sector and streams of research and development. |
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3.2. Classification system | |||
Classification used in the census include:
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3.3. Coverage - sector | |||
Not applicable |
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3.4. Statistical concepts and definitions | |||
3.4.1. Statistical concepts and definitions - Usual residence Usual residence means the place where a person normally spends the daily period of rest, regardless of temporary absences for purposes of recreation, holidays, visits to friends and relatives, business, medical treatment or religious pilgrimage. Sex is recorded in terms of the perceived sexual orientation of individuals. 3.4.3. Statistical concepts and definitions - AgeThe age reached at the reference date (in completed years). 3.4.4. Statistical concepts and definitions - Marital statusMarital status is the (legal) conjugal status of an individual in relation to the marriage laws of the country (de jure status). Civil unions entered into Maltese law in April 2014. Therefore, ‘partnership’ was not characterised by law up to census night, and thus it was not possible to identify ‘registered’ partnership as the legal status for persons living in consensual unions. For this reason, persons were identified according to their most recent legal marital status regardless of their relationship with their current partner. Similarly, same-sex marriage was not yet recognised in Malta either. For this reason, same-sex married couples residing in Malta who were enumerated in the 2011 Census had to acquire their legal marital status from a foreign state. The minimum age permitted by the Laws of Malta for a person to get married is 16 years. A law allowing divorce under certain conditions was enacted in Malta in 2011, and Maltese legislation includes the provision for the legal separation of married partners. 3.4.5. Statistical concepts and definitions - Family statusThe family nucleus is defined in the narrow sense, that is as two or more persons who belong to the same household and who are related as husband and wife, as partners in a registered partnership, as partners in a consensual union, or as parent and child. Thus a family comprises a couple without children, or a couple with one or more children, or a lone parent with one or more children. This family concept limits relationships between children and adults to direct (first-degree) relationships, that is, between parents and children. Private households may be defined according to the 'housekeeping concept', or, if this is not possible, Member States may apply the 'household-dwelling' concept. In Malta, the housekeeping concept was applied to identify private households while occupied dwellings were also identified. Relationships between household members were collected in two ways: using the relation to the reference person as well as a ‘simplified’ relationship matrix, where all members had to indicate their corresponding wife/husband, cohabiting partner, mother and father. This combination was tested during the piloting phase and proved to be the best option to simplify the data collection process as well as to guarantee a good level of data being collected. The narrow sense of family nucleus was employed to identify families, i.e. families comprised a couple without children, a couple with one or more children, or a lone parent with one or more children. Relationships between children and adults were limited to the relationships between parents and children. A child was identified as a blood, step- or adopted son or daughter (regardless of age or marital status) who has a usual residence of at least one of the parents, and who has no partner or own child(ren) in the same household. Grandsons and granddaughters who have usual residence in the household of at least one grandparent while there are no parents, own child(ren), or partners, were also considered as children. 3.4.7. Statistical concepts and definitions - Current activity statusCurrent activity status' is the current relationship of a person to economic activity, based on a reference period of one week, which may be either a specified, recent, fixed, calendar week, or the last complete calendar week, or the last seven days prior to enumeration. Occupation' refers to the type of work done in a job (that is the main tasks and duties of the work). Persons doing more than one job are allocated an occupation based on their main job, which is identified according to the time spent on the job or, if not available, to the income received. Industry (branch of economic activity) is the kind of production or activity of the establishment (or similar unit) in which the job of a currently economically active person is located. An 'employee' is a person who works in a 'paid employment' job, that is, a job where the explicit or implicit contract of employment gives the incumbent a basic remuneration, which is independent of the revenue of the unit for which he/she works. The location of the place of work is the geographical area in which a currently employed person does his/her job. 'Educational attainment' refers to the highest level successfully completed in the educational system of the country where the education was received. All education which is relevant to the completion of a level is taken into account even if this was provided outside schools and universities. A locality is defined as a distinct population cluster, that is an area defined by population living in neighbouring or contiguous buildings (i.e. local council). Such buildings may either: Place of birth is defined as the place of usual residence of the mother at the time of the birth, or, if not available, as the place in which the birth took place. Citizenship is defined as the particular legal bond between an individual and his/her State, acquired by birth or naturalisation, whether by declaration, option, marriage or other means according to the national legislation. The year of arrival is the calendar year in which a person most recently established usual residence in the country. The data for 2011 refer to the time span between 1 January 2011 and the reference date. 3.4.17. Statistical concepts and definitions - Residence one year beforeThis indicates the relationship between the current place of usual residence and the place of usual residence one year prior to the census. Children under one year of age are classified under 'Not applicable'. The topic 'Housing arrangements' covers the whole population and refers to the type of housing in which a person usually resides at the time of the census. This covers all persons who are usual residents in different types of living quarters, or who do not have a usual residence and stay temporarily in some type of living quarters, or who are roofless, sleeping rough or in emergency shelters, when the census is taken. The family nucleus is defined in the narrow sense, that is as two or more persons who belong to the same household and who are related as husband and wife, as partners in a registered partnership, as partners in a consensual union, or as parent and child. Thus a family comprises a couple without children, or a couple with one or more children, or a lone parent with one or more children. This family concept limits relationships between children and adults to direct (first-degree) relationships, that is between parents and children. The family nucleus is defined in the narrow sense, that is as two or more persons who belong to the same household and who are related as husband and wife, as partners in a registered partnership, as partners in a consensual union, or as parent and child. Thus a family comprises a couple without children, or a couple with one or more children, or a lone parent with one or more children. This family concept limits relationships between children and adults to direct (first-degree) relationships, that is between parents and children. Private households may be defined according to the 'housekeeping concept' , or, if this is not possible, Member States may apply the 'household-dwelling' concept. Private households may be defined according to the 'housekeeping concept' , or, if this is not possible, Member States may apply the 'household-dwelling' concept. The topic 'Tenure status of households' refers to the arrangements under which a private household occupies all or part of a housing unit. 'Conventional dwellings' are structurally separate and independent premises at fixed locations which are designed for permanent human habitation and are, at the reference date, either used as a residence, or vacant, or reserved for seasonal or secondary use. 'Occupied conventional dwellings' are conventional dwellings which are the usual residence of one or more persons at the time of the census. 'Unoccupied conventional dwellings' are conventional dwellings which are not the usual residence of any person at the time of the census. The topic 'Type of ownership' refers to the ownership of the dwelling and not to that of the land on which the dwelling stands. The number of occupants of a housing unit is the number of people for whom the housing unit is the usual residence. 3.4.28. Statistical concepts and definitions - Useful floor spaceNot available. 3.4.29. Statistical concepts and definitions - Number of roomsA 'room' is defined as a space in a housing unit enclosed by walls reaching from the floor to the ceiling or roof, of a size large enough to hold a bed for an adult (4 square metres at least) and at least 2 metres high over the major area of the ceiling. 3.4.30. Statistical concepts and definitions - Density standard (floor space)Not available. 3.4.31. Statistical concepts and definitions - Density standard (number of rooms)The topic ‘Density standard’ relates the useful floor space in square metres or the number of rooms to the number of occupants, as specified under the topic 'Number of occupants'. This topic relates to water supply systems for occupied conventional dwellings, and a distinction is made between piped and non-piped systems. 3.4.33. Statistical concepts and definitions - Toilet facilitiesThis topic relates to toilet facilities for occupied conventional dwellings, and a distinction is made between flush and non-flush toilets. 3.4.34. Statistical concepts and definitions - Bathing facilitiesA bathing facility is any facility designed to wash the whole body and includes shower facilities. 3.4.35. Statistical concepts and definitions - Type of heatingA housing unit is considered as centrally heated if heating is provided either from a community heating centre or from an installation built in the building or in the housing unit, established for heating purposes, without regard to the source of energy. 3.4.36. Statistical concepts and definitions - Type of buildingThe topic 'Dwellings by type of building' refers to the number of dwellings in the building in which the dwelling is placed. 3.4.37. Statistical concepts and definitions - Period of constructionThe topic 'Dwellings by period of construction' refers to the year when the building in which the dwelling is placed was completed. |
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3.5. Statistical unit | |||
The EU programme for the 2011 population and housing censuses include data on persons, private households, family nuclei, conventional dwellings and living quarters |
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3.6. Statistical population | |||
Persons enumerated in the 2011 census are those who were usually resident in the territory of the reporting country at the census reference date. Usual residence means the place where a person normally spends the daily period of rest, regardless of temporary absences for purposes of recreation, holidays, visits to friends and relatives, business, medical treatment or religious pilgrimage |
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3.7. Reference area | |||
Data are available at different levels of geographical detail: national, NUTS2, NUTS3 and local administrative units (LAU2) |
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3.8. Coverage - Time | |||
Data refer to the situation in Malta at the census reference date (namely 20 November 2011) |
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3.9. Base period | |||
The base year is 2011 |
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Persons, Families, Households, Occupied Dwellings, Unoccupied dwellings (completely vacant and dwellings for seasonal or secondary use) are all recorded in absolute amounts. |
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20/11/2011 |
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6.1. Institutional Mandate - legal acts and other agreements | |||
Common reminder of EU legislation |
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6.1.1. Bodies responsible | |||
The Census Officer was responsible for the entire Census process and all staff were answerable to him. In this task, he was assisted by Chief Coordinators who ran the Census Office and who, together with a group of District Managers, were responsible for field operations. Each District Manager was responsible for a number of localities, to ensure the smooth running of the process, while each Supervisor was responsible for a group of Enumerators. The main task of the Supervisor was to co-ordinate and control the work of Enumerators. Supervisors and Enumerators were required to work closely together in the course of their duties. |
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6.2. Institutional Mandate - data sharing | |||
Not available. |
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7.1. Confidentiality - policy | |||
Article 3(3) together with Article 2(8) of Regulation (EU) No 519/2010 stipulate that Member States can replace a numerical cell value by the special value ‘not available’ if the numerical cell value must not be disclosed to protect the statistical confidentiality of the data in accordance with the Member States’ statistical disclosure control. The statistical disclosure policy employed at the NSO may be viewed here: http://www.nso.gov.mt/site/page.aspx?pageid=682. No statistical disclosure control was applied on census for the treating of statistical confidentiality of data transmitted to Eurostat. |
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7.2. Confidentiality - data treatment | |||
All information that was collected during the Census is strictly confidential. Any breach of confidentiality by any third party renders him/her liable to a fine and/or imprisonment in terms of the Census Act of 1948. The statistical disclosure policy employed at the NSO may be viewed here: http://www.nso.gov.mt/site/page.aspx?pageid=682. |
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8.1. Release calendar | |||
Data are made available 27 months after the end of the reference period (March 2014) |
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8.2. Release calendar access | |||
Not applicable |
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8.3. Release policy - user access | |||
The general public is informed about any new releases of data through press information notices. A number of publications and press releases outlining the Census results are also made available to the public in due course in various forms, including two publications and a series of press releases. |
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Data on population and housing censuses are disseminated every decade |
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10.1. Dissemination format - News release | |||
News releases on census data are issued sporadically |
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10.2. Dissemination format - Publications | |||
A preliminary report outlining the main population characteristics is normally issued within a couple of months after the launch of the census. A series of publications based on the final set of data for persons and dwellings are normally published one year later. |
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10.3. Dissemination format - online database | |||
Census microdata is not available through the NSO on-line database (known as StatDb) |
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10.4. Dissemination format - microdata access | |||
Anonymised Census microdata may be available for research purposes upon request. This may be requested through the following link: http://www.nso.gov.mt/site/page.aspx?pageid=682 |
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10.5. Dissemination format - other | |||
No other dissemination means are utilised. |
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11.1. Documentation on methodology | |||
Meta-information about the census is included in all census publications, which are available on the NSO website. |
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11.2. Quality management - documentation | |||
Quality-related issues pertaining to the census are included in all census publications, which are available on the NSO website. |
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12.1. Quality assurance | |||
Quality-related issues pertaining to the census are included in all census publications, which are available on the NSO website. |
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12.2. Quality management - assessment | |||
12.2.1. Coverage assessment | |||
A final coverage rate of 96.2 per cent was observed while item non-response varied according by topic. |
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12.2.2. Post-enumeration survey(s) | |||
In order to ensure a high-coverage rate the Census Office made extensive use of a number of in-house and external administrative registers throughout the enumeration process to monitor those individuals and households who did not provide the required information. These registers also played an important role in the post-enumeration process, where the Census Office tried to make contact with those households which did not reply during the census period to assess the overall coverage of the census. Approximately 3.8 per cent of data was retrieved through administrative records. These were identified through the follow-up exercise which was carried out between August and October 2012, where all households where it appeared that some identity number had not been tagged were contacted. |
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13.1. Relevance - User Needs | |||
The census data disseminated by Eurostat are addressed to policy makers, researchers, media and the general public. |
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13.2. Relevance - User Satisfaction | |||
No user satisfaction surveys are carried out. User inquiries are handled by the Eurostat User Support service. |
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13.3. Completeness | |||
Depends on the availability of data transmitted by the National Statistical Institutes. |
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14.1. Accuracy - overall | |||
14.1.1. Accuracy overall - Usual residence There are no particular reasons for data unreliability for this topic 14.1.2. Accuracy overall - SexThere are no particular reasons for data unreliability for this topic 14.1.3. Accuracy overall - AgeThere are no particular reasons for data unreliability for this topic 14.1.4. Accuracy overall - Marital statusThere are no particular reasons for data unreliability for this topic 14.1.5. Accuracy overall - Family statusThere are no particular reasons for data unreliability for this topic 14.1.6. Accuracy overall - Household statusThere are no particular reasons for data unreliability for this topic 14.1.7. Accuracy overall - Current activity statusThere are no particular reasons for data unreliability for this topic 14.1.8. Accuracy overall - OccupationThere are no particular reasons for data unreliability for this topic 14.1.9. Accuracy overall - IndustryThere are no particular reasons for data unreliability for this topic 14.1.10. Accuracy overall - Status in employmentThere are no particular reasons for data unreliability for this topic 14.1.11. Accuracy overall - Place of workThere are no particular reasons for data unreliability for this topic 14.1.12. Accuracy overall - Educational attainmentThere are no particular reasons for data unreliability for this topic 14.1.13. Accuracy overall - Size of the localityThere are no particular reasons for data unreliability for this topic 14.1.14. Accuracy overall - Place of birthThere are no particular reasons for data unreliability for this topic 14.1.15. Accuracy overall - Country of citizenshipThere are no particular reasons for data unreliability for this topic 14.1.16. Accuracy overall - Year of arrival in the countryThere are no particular reasons for data unreliability for this topic 14.1.17. Accuracy overall - Residence one year beforeThere are no particular reasons for data unreliability for this topic 14.1.18. Accuracy overall - Housing arrangementsThere are no particular reasons for data unreliability for this topic 14.1.19. Accuracy overall - Type of family nucleusThere are no particular reasons for data unreliability for this topic 14.1.20. Accuracy overall - Size of family nucleusThere are no particular reasons for data unreliability for this topic 14.1.21. Accuracy overall - Type of private householdThere are no particular reasons for data unreliability for this topic 14.1.22. Accuracy overall - Size of private householdThere are no particular reasons for data unreliability for this topic 14.1.23. Accuracy overall - Tenure status of householdThere are no particular reasons for data unreliability for this topic 14.1.24. Accuracy overall - Type of living quarterThere are no particular reasons for data unreliability for this topic 14.1.25. Accuracy overall - Occupancy statusThere are no particular reasons for data unreliability for this topic. However, for a significant proportion of unoccupied dwellings the occupancy status was unknown and had to be imputed. 14.1.26. Accuracy overall - Type of ownershipThere are no particular reasons for data unreliability for this topic 14.1.27. Accuracy overall - Number of occupantsThere are no particular reasons for data unreliability for this topic 14.1.28. Accuracy overall - Useful floor spaceNot applicable. 14.1.29. Accuracy overall - Number of roomsThere are no particular reasons for data unreliability for this topic 14.1.30. Accuracy overall - Density standard (floor space)Not applicable. 14.1.31. Accuracy overall - Density standard (number of rooms)There are no particular reasons for data unreliability for this topic 14.1.32. Accuracy overall - Water supply systemThere are no particular reasons for data unreliability for this topic 14.1.33. Accuracy overall - Toilet facilitiesThere are no particular reasons for data unreliability for this topic 14.1.34. Accuracy overall - Bathing facilitiesThere are no particular reasons for data unreliability for this topic 14.1.35. Overall accuracy - Type of heatingThere are no particular reasons for data unreliability for this topic 14.1.36. Overall accuracy - Type of buildingThere are no particular reasons for data unreliability for this topic. However type of building could not be recorded for unoccupied dwellings. In Malta, data on occupied dwellings is normally collected at source from its members and thus a vast number of variables could be collected. On the other hand, in absence of auxiliary information about the owners of vacant dwellings at micro level, it was not possible to trace the owner(s) of vacant dwellings during the census and therefore certain information such as the number of dwellings inside the building (which is not always evident from outside the building) could not be collected. In fact, information about vacant dwellings was limited to the type of dwelling, state of repair and occupancy status since such information had to be retrieved by the field officers either from third parties (neighbours, etc) or self judgement. 14.1.37. Overall accuracy - Period of constructionThere are no particular reasons for data unreliability for this topic. However period of construction was not recorded for unoccupied dwellings. In Malta, data on occupied dwellings is normally collected at source from its members and thus a vast number of variables could be collected. On the other hand, in absence of auxiliary information about the owners of vacant dwellings at micro level, it was not possible to trace the owner(s) of vacant dwellings during the census and therefore certain information such as the period of construction could not be determined. In fact, information about vacant dwellings was limited to the type of dwelling, state of repair and occupancy status since such information had to be retrieved by the field officers either from third parties (neighbours, etc) or self judgement. |
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14.2. Sampling error | |||
Not applicable |
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14.3. Non-sampling error | |||
Not applicable |
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15.1. Timeliness | |||
Preliminary data (in aggregated form) was published in July 2012, while final data (in aggregated form) was published in March (persons) and April 2014 (dwellings). Final data in hypercube form was provided to Eurostat 27 months after the end of the reference year (2011) as specified in Reg. 1151/2010. |
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15.2. Punctuality | |||
Not applicable |
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16.1. Comparability - geographical | |||
Data reported to Eurostat conforms to the eligibility criteria established for all countries. In accordance with regulation (EC) No 763/2008 of the European Parliament and of the Council, the definition of 'usual residence' is based on a 12 month reference period, in other words, those included should have lived in their place of usual residence for a continuous period of at least 12 months before the reference date, or arrived in their place of usual residence during the 12 months before the reference date with the intention of staying there for at least one year. There are no particular reasons for lack of comparability between countries. |
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16.2. Comparability - over time | |||
Not applicable |
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17.1. Coherence - cross domain | |||
Figures provided by the National Statistical Institutes in the framework of the 2011 Population and Housing Census may differ from those transmitted in other statistical domains due to the cross domain differences in definitions and methodologies used. For additional information please see metadata specific to each domain. |
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17.2. Coherence - internal | |||
Internal coherence is assured by regulations defining breakdowns and definitions of topics (Regulation (EC) No 1201/2009, Regulation (EU) No 519/2010, Regulation (EU) No 1151/2010) |
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The total cost associated with the data collection for the census is estimated at €1.48 million. |
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19.1. Data revision - policy | |||
The data revision policy employed at the NSO may be found here: http://www.nso.gov.mt/docs/Revisions_of_Official_Statistics.pdf Annexes: Data Revision Policy (NSO) |
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19.2. Data revision - practice | |||
The terms and conditions under the data revision policy employed at the NSO may be found here: http://www.nso.gov.mt/docs/Revisions_of_Official_Statistics.pdf |
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20.1. Source data | |||
20.1.1. List of data sources | |||
20.1.1.1. List of data sources - data on persons | |||
In Malta, the census was carried out the traditional way (through secondary data sources). For this reason, primary data sources available were only used for verification purposes and to cater for unit non-response. The following databases were particularly used along with other national registers in the post-enumeration exercise to trace any persons who were not enumerated during the initial stages of the Census:
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20.1.1.2. List of data sources - data on households | |||
In Malta, the census was carried out the traditional way (through secondary data sources). For this reason, primary data sources available were only used for verification purposes and to cater for unit non-response. The following databases were particularly used along with other national registers in the post-enumeration exercise to trace any households which were not enumerated during the initial stages of the Census:
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20.1.1.3. List of data sources - data on family nuclei | |||
No primary data source was used. |
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20.1.1.4. List of data sources - data on conventional dwellings | |||
In Malta, the census was carried out the traditional way (through secondary data sources). For this reason, primary data sources available were only used for verification purposes and to cater for unit non-response. The following databases were particularly used along with other national registers in the post-enumeration exercise to trace any dwellings which were skipped during the initial stages of the Census:
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20.1.1.5. List of data sources - data on living quarters | |||
In Malta, the census was carried out the traditional way (through secondary data sources). For this reason, primary data sources available were only used for verification purposes and to cater for unit non-response. The following databases were particularly used along with other national registers in the post-enumeration exercise to trace any dwellings which were skipped during the initial stages of the Census:
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20.1.2. Classification of data sources | |||
20.1.2.1. Classification of data sources - data on persons | |||
05.Combination of register-based censuses and conventional censuses | |||
20.1.2.2. Classification of data sources - data on households | |||
05.Combination of register-based censuses and conventional censuses | |||
20.1.2.3. Classification of data sources - data on family nuclei | |||
01.Conventional censuses | |||
20.1.2.4. Classification of data sources - data on conventional dwellings | |||
05.Combination of register-based censuses and conventional censuses | |||
20.1.2.5. Classification of data sources - data on living quarters | |||
05.Combination of register-based censuses and conventional censuses | |||
20.2. Frequency of data collection | |||
Data on population and housing censuses are collected every decade, in a reference year that falls during the beginning of every decade |
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20.3. Data collection | |||
The Census questionnaire ensured continuation with previous censuses that were carried out in Malta, and conformed to the recommendations, concepts and definitions on population censuses of the United Nations Economic Commission for Europe (UNECE) and Eurostat. It was prepared in Maltese and English languages after a series of consultation meetings were held with a number of organisations in June and July 2011, and it was also pilot tested among a random sample of households in August 2011. The Census Officer was responsible for the entire Census process and all staff were answerable to him. In this task, he was assisted by Chief Coordinators who ran the Census Office and who, together with a group of District Managers, were responsible for field operations. Each District Manager was responsible for a number of localities to ensure the smooth running of the process, while each Supervisor was responsible for a group of Enumerators. The main task of the Supervisor was to co-ordinate and control the work of Enumerators, who were ultimately responsible for the collection of Census questionnaires from households. Enumerators were also required to check the data provided by households to ensure that Census questionnaires were correctly filled in. A number of intensive briefing sessions on all aspects related to the Census were held both in Malta and Gozo in October and November 2011. All Census staff were requested to attend the sessions. In a follow-up exercise which was carried out between August and October 2012, the Census Office mailed out a form to all those households where it appeared that someone had been left out. The list included also any non-Maltese nationals in possession of a local identity card. Results were benchmarked with administrative registers in order to reduce as much as reasonably possible the extent of under enumeration. From this exercise the corresponding under- and over-enumeration were calculated and duly accounted for. |
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20.4. Data validation | |||
Wrong or inconsistent data was double-checked at source by the Enumerators, Supervisors and District Managers as well as at a later stage with the corresponding household members (if necessary). A number of in-built validations were included in the data-entry program to check the validity of keyed data by establishing acceptable values. These validation rules allowed skip patterns to be executed as intended and allowed the data entry persons to observe the problem whilst entering the data for the questionnaire. In case the errors were not noticed during the data-entry phase these were corrected or edited by the census office at the data editing stage, even though editing preserved the original data as much as possible. Nevertheless, original collected data was maintained and archived for reference. Available administrative sources and survey registers were used in order to improve the consistency of recorded data as well as for benchmarking purposes. In addition, the data-entry phase was split into two stages:
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20.5. Data compilation | |||
During the second stage of the data-entry, a specialised team of coders was recruited to code census data accordingly, including the occupation and economic activity of individuals. Coding was split in shifts to ensure a smooth running of the process and all coders were duly supervised throughout the whole process. After this, the census office focused on data editing, including the verification, benchmarking and imputation (of both item and unit non response) of census data. Throughout this process, a number of reliable administrative registers were used. Unit non response was also accounted for through the post-enumeration survey which was carried out among a large number of households between August and October 2012. This exercise entailed the mailing out of a form to all households where it appeared that some identity card had not been tagged, including both Maltese and non-Maltese nationals in possession of a local identity card. The final results contain a correction factor (replicated records and weights) accounting for under-enumeration based on the results of the follow-up survey that was carried out. Over-coverage resulted from persons being enumerated more than once and persons who did not meet the eligibility criteria for inclusion in the Maltese population (established through appropriate filtering questions in the Census form). These records were not considered for analysis. |
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20.6. Adjustment | |||
Not applicable |
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Not applicable |
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