SN 5502 -Annual Population Survey, April 2005

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SN 5502 -Annual Population Survey, April 2005 - March 2006

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Title:
Annual Population Survey, April 2005 - March 2006

Subject Categories:
Annual Population Survey - Major studies
General - Employment and labour
Population studies - Population, vital statistics and censuses

Depositor(s):
Office for National Statistics. Social and Vital Statistics Division

Principal Investigator(s):
Office for National Statistics. Social and Vital Statistics Division

Sponsor(s):
Office for National Statistics
Department for Work and Pensions
Department for Education and Skills
National Assembly for Wales
Scottish Government
Northern Ireland Statistics and Research Agency. Central Survey Unit

Abstract:
The Annual Population Survey (APS) is a major survey series, which aims to provide data that can produce reliable estimates at local authority level. Key topics covered in the survey include education, employment, health and ethnicity. The APS comprises key variables from the Labour Force Survey (LFS) (held at the UK Data Archive (UKDA) under GN 33246), all its associated LFS boosts and the APS boost. Thus, the APS combines results from five different sources: the LFS (waves 1 and 5); the English Local Labour Force Survey (LLFS), the Welsh Labour Force Survey (WLFS), the Scottish Labour Force Survey (SLFS) and the Annual Population Survey Boost Sample (APS(B) - however, this ceased to exist at the end of December 2005, so APS data from January 2006 onwards will contain all the above data apart from APS(B)). Users should note that the LLFS, WLFS, SLFS and APS(B) are not held separately at the UKDA. For further detailed information about methodology, users should consult the Labour Force Survey User Guide, selected volumes of which have been included with the APS documentation for reference purposes (see 'Documentation' table below).

The APS aims to provide enhanced annual data for England, covering a target sample of at least 510 economically active persons for each Unitary Authority (UA)/Local Authority District (LAD) and at least 450 in each Greater London Borough. In combination with local LFS boost samples such as the WLFS and SLFS, the survey provides estimates for a range of indicators down to Local Education Authority (LEA) level across the United Kingdom.

End User Licence and Special Licence APS data
Users should note that there are two versions of each APS dataset. One is available under the standard End User Licence (EUL) agreement, and the other is a Special Licence (SL) version. The SL version contains more detailed variables relating to:

age: including single year of age, year and month of birth, age completed full-time education and age obtained highest qualification, age of oldest dependent child and age of youngest dependent child
family unit and household: including a number of variables concerning the number of dependent children in the family according to their ages, relationship to head of household and relationship to head of family
nationality and country of origin
geography: including county, unitary/local authority, place of work, Nomenclature of Territorial Units for Statistics 2 (NUTS2) and NUTS3 regions, and whether lives and works in same local authority district
health: including main health problem, and current and past health problems
education and apprenticeship: including numbers and subjects of various qualifications and variables concerning apprenticeships
industry: including industry, industry class and industry group for main, second and last job, and industry made redundant from
occupation: including 4-digit Standard Occupational Classification (SOC) for main, second and last job and job made redundant from
system variables: including week number when interview took place and number of households at address

The EUL version contains less detailed variables. For example, the lowest geography is Government Office Region, only banded age is available, only 3-digit SOC is available for main, second and last job, and only industry division for main, second and last job. Users are advised to first obtain the standard EUL version of the data to see if they are sufficient for the research requirements.

The SL data have more restrictive access conditions than those made available under the standard EUL. Prospective users of the SL version will need to complete an extra application form and demonstrate to the data owners exactly why they need access to the additional variables in order to get permission to use that version. Therefore, users are strongly advised to order the standard version of the data. In order to help users choose the correct dataset, 'Special Licence Access' has been added to the dataset titles for the SL versions of the data.

Annual Population Survey Reweighting Project, 2009:
In 2009, the Office for National Statistics (ONS) undertook a reweighting project, whereby APS data were reweighted using population estimates for 2009. As a result, reweighted editions of selected APS datasets from 2006 onwards are currently being deposited at the UKDA, and updated datasets will be available in due course. Users should note that datasets prior to 2006 will remain weighted to the 2007-2008 population figures used for the previous reweighting project conducted in 2007. Further information about the 2009 reweighting project will be included in the documentation for each dataset as it is updated.

Guide to APS variables:
The ESDS Government Datasets for Annual Population Survey web page has a useful guide to variables included in the APS. For each survey entry, all variables are listed, alongside further details comprising the distribution of each variable and any additional information available.

For the third edition (July 2008) the data have been reweighted using the latest population estimates (2007-2008), and the weighting variable has been recalculated to reflect this. Further details about the reweighting may be found in the documentation. In addition, variables Extfu, Famunit, Gorwk2r, Hprmb, Hrpid, Nurse, Nuts2, Smsxfu and Whytmp are no longer included. Users should note that the Excel variable list in the documentation may not reflect these changes.

The Special Licence version of the APS April 2005 - March 2006 is held at the UKDA under SN 5503.

Main Topics:
Topics covered include: household composition and relationships, housing tenure, nationality, ethnicity and residential history, employment and training (including government schemes), workplace and location, job hunting, educational background and qualifications. Many of the variables included in the survey are the same as those in the LFS.

Coverage:
Dates of Fieldwork: April 2005-March 2006
Country: United Kingdom
Spatial Units: Government Office Regions (GORs)
Observation Units: Individuals
Kind of Data: Numeric data; Individual (micro) level

Universe Sampled:
Location of Units of Observation:National
Population:Persons resident in the UK in private households, and young people living away from the parental home in student halls of residence or similar institutions during term time.

Methodology:
Time Dimensions: Repeated cross-sectional study
The survey has a panel element, in that the households at selected addresses are interviewed annually over four waves, in the same way as for the LFS boosts. They then leave the survey and are replaced by other households.
Sampling Procedures: Multi-stage stratified random sample
Method of Data Collection: Face-to-face interview; Telephone interview
Weighting: Weighting used. See documentation for details.
Data Sources: See the 'Abstract' section above for details of sources used.

Language(s) of Written Materials:
Study Description: English
Study Documentation: English

Access:
Access Conditions: The depositor has specified that registration is required and standard conditions of use apply. The depositor may be informed about usage. See terms and conditions for further information.
Availability: ESDS Government, UK Data Archive
Contact: Help desk: govsurveys@esds.ac.uk

Date of Release:
First Edition: 12 October 2006
Latest Edition: 31 July 2008 ( 3rd Edition )

Copyright:
Crown copyright material is reproduced with the permission of the Controller of HMSO and the Queen’s Printer for Scotland

Documentation:

Format	Name	Size in Kilobytes	Description
EXCEL	aps_public_and_trusted_variables_apr05-mar06.xls	64	Variable List (Standard vs. Special Licence)
PDF	5502userguide.pdf	537	APS User Guide (2004-2005)
PDF	aps_briefing_note_for_ukda.pdf	149	Briefing Note for UKDA on Changes to APS Data
PDF	aps_end-user_licence_files.pdf	141	APS Reweighting Project 2007 Variable Changes
PDF	aps_lfs_reweighting2007.pdf	186	APS Reweighting Project 2007 Information
PDF	background.pdf	2315	LFS Background and Methodology (for reference only)
PDF	derivedvariables2003.pdf	1725	LFS Derived Variables 2003 (for reference only)
PDF	derivedvariables2007.pdf	4327	LFS Derived Variables 2007 (for reference only)
PDF	questionnaire2005.pdf	1188	LFS Questionnaire 2005 (for reference only)
PDF	variabledetails.pdf	7215	LFS Variables (for reference only)
PDF	variabledetails2007.pdf	1192	LFS Variables 2007 (for reference only)
HTML	UKDA_Study_5502_Information.htm	26	Study information and citation

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Catalogue record last updated:
19 April 2010

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Users are advised to visit the Annual Population Survey (APS) web pages for support in using these data, additional resources, and news and events.

The ESDS Government Datasets for Annual Population Survey web page has a useful guide to variables included in the APS. For each survey entry, all variables are listed, alongside further details comprising the distribution of each variable and any additional information available.

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