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Help on searching the ESDS Longitudinal Data Catalogue

The ESDS Longitudinal Data Catalogue contains descriptions of the data supported by ESDS Longitudinal. This catalogue allows the user to focus their search on the longitudinal surveys such as the British Household Panel Survey and the Millennium Cohort Study.

ESDS also holds other longitudinal surveys which do not form part of the ESDS Longitudinal collection. These, along with a vast range of other survey and macro data, can be located in the full ESDS Data Catalogue. Some are also listed at Other longitudinal ESDS data.

Search

The Data Catalogue contains a number of fields. You can search All Fields or specific fields within catalogue records. The fields that can be selected are detailed below. Search terms can be combined by using the operators AND, NOT or OR to include or exclude search criteria as required.

• All Fields - searches all catalogue fields except access conditions and variables
• Title - searches all areas of title - main title, sub-title, alternative title and series
• Subject - searches Subject Category, Abstract, Main Topics and Keywords
• Keyword - searches only the keywords (selected from the UK Data Archive thesaurus, HASSET)
• Geography - searches Geography, Country, and Location of units of observation, i.e. national, subnational or cross-national
• Data Creator/Funder - searches the names and affiliations of the Depositor, Principal Investigator, Data Collector, Original Producer and Sponsor/Funder
• Methodology - searches Time Dimensions, Sampling Procedures and Method of Data Collection
• Publications - searches the publications and reports resulting from primary and secondary analysis
• UKDA Study Number - searches UK Data Archive study numbers

The following search options are also available:

• Year - searches for data covering a specific year or range of years
• Service - search the whole catalogue or limit your search to a specific service
• Sort by relevance - sorts your results according to the frequency of the search terms in a catalogue record (this is the default option)
• Sort by date - lists your results based on information in the Data of Coverage field with the most recent data collections listed first
• Show only major studies - limits a search to the most frequently used data collections

Multiple search terms can be entered within one field and combined by using the Any, All or Exact buttons.

Use wildcard/truncation searches to substitute ? for a character within a word, or add * to the end of a word. For example, wom?n will search for woman and women, or child* to search for children and childminder.

After entering your search terms click Search to begin the search process. When your Results are returned, the number of hits will be displayed at the top of the list. Where data are part of a survey series, use Group by Series to arrange your search results into data series, where possible.

All Fields

An All Fields search will search the whole catalogue record with the exception of the access conditions field and variables. The Documentation, Keywords, Publications and Related Studies sections are also included in an All Fields search.

Title

A Title search will search all parts of the title, i.e. main title, sub-title, alternative title and series title. A wildcard/truncation search is recommended if the full title is not known.

Note: A truncation search will not work when the Exact button is checked.

Subject

Select Subject search to locate datasets whose subject coverage reflects your area of interest, e.g. health care, social networks, voting behaviour. The studies located may be wholly about the subject area or have variables/questions of interest.

This search option actually searches several areas of the catalogue record: the subject category, abstract, main topics and subject keyword list. This provides a broad search, and will retrieve data collections containing the search term(s) anywhere within these fields.

• Subject Categories
  One or more subject categories, selected from the UK Data Archive's list of subject categories, are assigned to each dataset to reflect the overall subject scope of the data collection. There are 20 main thematic headings which are often further divided into subheadings. The full list can be viewed on the Browse by subject page.


• Abstract and Main Topics
  Summary information describing the aims, purpose and background of the data collections. Also included are key themes and topics covered by the variables/questions in the data.


• Keywords
  Each catalogue record contains a list of subject Keywords covering all topics included in the data collection. The keywords are taken from a controlled vocabulary list held in the UK Data Archive thesaurus, HASSET. Further information about using HASSET is available from HASSET help.

Keyword

The Keyword search performs a free-text search on the keywords assigned to each data collection. More than one term can be entered into the search box and the Any, All or Exact buttons used. Alternatively, terms can be entered into more than one search box and combined with the AND, NOT or OR operators.

Examples:

• enter crime in the search box and check the Any box - this will produce a list of datasets with keywords containing the word crime; it will also include such things as crime victims and fear of crime


• enter fear of crime in the search box and check the Exact box to locate datasets which have been assigned the keyword fear of crime

If no studies are retrieved, i.e. your search term does not match or partially match a keyword, or if help is required choosing appropriate keywords, then the HASSET thesaurus is available either to consult for suggested terms or to use as a stand-alone search tool. See HASSET help for further information.

Geography

A search using Geography can be used to locate data collections that cover a particular geographic coverage: country, county, region, city/town or village. The catalogue fields searched are Geography, Country, and Location of units of observation. Two or more geographic areas can be combined within one search box using the Any or All buttons, or by combining searches using the AND, NOT or OR operators.

Data at national or subnational level, or covering more than one country, can also be located.

Examples:

• a search for Scotland will return any studies with a geographic coverage of Scotland at a national level, as well as data that covers only parts of Scotland (subnational)


• to find data on Scotland at a national level, search Scotland and national using the AND operator


• to find subnational level data, search on Scotland and subnational using the AND operator


• data covering more than one country may be retrieved by searching on the term cross-national


• to locate global or world data, use the search term multi-nation


• when searching for international macro time series data, search for the country name, e.g. Argentina, rather than region, e.g. Latin America

Geographic terms can also be viewed in the HASSET thesaurus and can be used in either a Geography or a Keyword search.

Data Creator/Funder

This search is performed on all individuals or organisations associated with the creation of the data collection: e.g. Depositor, Principal Investigator, Data Collector, Original Producer, Sponsor/Funder.

• Searching on a personal name
  Names usually appear in the catalogue record in the format: surname followed by initial(s), e.g. Crewe, I. rather than I. Crewe or Ivor Crewe. However, as some initials will be classed as 'skip' words and therefore ignored by search, it is strongly recommended that you only search for surnames.


• Searching for an organisation
  Names of organisations are entered into the catalogue record in full, e.g. Office for National Statistics rather than as an acronym, e.g. ONS. However, acronyms may be found in some instances. You are therefore advised to search for both the full name and the abbreviation by using a combined search using OR and checking the Exact buttons.

Methodology

Selecting Methodology will search the catalogue fields: Time Dimensions, Sampling Procedures and Method of Data Collection. These fields are populated from controlled vocabulary lists, i.e. they use standard terminology to ensure consistency. The terms available for these catalogue fields can be found in the Glossary of terms.

Publications

Select Publications to search the publications and reports resulting from the primary or secondary analysis of the data collection that are listed as part of the study description. It is also possible to search for author (surname only), publication title and publisher.

Year

Used to search for data covering a specific year or range of years. The catalogue fields searched are Time period and Date of Collection.

• Single year
  Entering a year into the first box will locate all studies covering the year specified and also those with a date span which includes the year entered. For example, a search for 2007 will return studies with the following dates: 2007, 1995-2007, 2001-2008, 2007-2008, etc.


• Year range
  Enter the start year in the first box and the end year in the second box to locate studies that both cover and span the range of years entered. For example, a search for 1990-2001 will return studies for 1990, 1991, ... etc., 1980-1999, 1990-2008, 1989-2001, etc.

Service

Automatically set to search ESDS Longitudinal datasets only.

Results

The number of hits found is displayed at the top of the results list. There is no limit to the maximum number of hits retrieved. However, where a search results in 100 or more hits, only the first 100 are displayed with the option to Display All if required.

Group by Series

The search results are displayed as a list of all data collections which match the search criteria. Only the first 100 are displayed by default with an option to Display All if required. Sometimes the full list can consist of several hundred data collections including many that are part of a series, e.g. the Quarterly Labour Force Survey.

Group by Series will bring together all of the individual datasets from a series (which have matched the search criteria) and group them under one entry. This creates a shorter list which is easier to browse. Each grouped series can be expanded using the + sign.