Study Number 6066 - British Crime Survey, 2007-2008
LEGAL AGREEMENT ON CONDITION OF USE
Self-completion modules were also fielded in the 2007-2008 survey, covering drug use, drinking behaviour, stolen goods and interpersonal violence (IPV - comprises data from the domestic violence and sexual victimisation modules). These modules are held under separate study numbers and are subject to Special Licence access conditions - see SNs 7308, 7309, 7310 and 7350.
NEW EDITION INFORMATION
- The first edition of the study (November 2008) comprised the the non-victim and victim form data, and technical reports.
- For the second edition (December 2008) 'young adult' versions of the non-victim and victim form data files (covering respondents aged 16-24), the 2007-2008 user guide and a separate version of the questionnaire were deposited.
- For the third edition (March 2009), the variable SXCLASS (Sexual orientation) was added to the non-victim form file.
- For the fourth edition (May 2009), a new version of the interpersonal violence (IPV) data file was deposited, with variables PV3a to PV3o corrected. From July 2013, the IPV file is subject to Special Licence access conditions and has been moved to a separate study number, SN 7350.
DATA PROCESSING NOTES
Data Archive Processing Standards
The data were processed to the UK Data Archive's A standard. A rigorous and
comprehensive series of checks was carried out to ensure the quality of the data
and documentation. Firstly, checks were made that the number of cases and
variables matched the depositor's records. Secondly, checks were made that all
variables had variable labels and all nominal (categorical) variables had value
labels. Where possible, either with reference to the documentation and/or in
communication with the depositor, absent labels were created. Thirdly, logical
checks were performed to ensure that nominal (categorical) variables had values
within the range defined (either by value labels or in the depositor's
documentation). Lastly, any data or documentation that breached confidentiality
rules were altered or suppressed to preserve anonymity.
All notable and/or outstanding problems discovered are detailed under the 'Data
and documentation problems' heading below.
Data and documentation problems
Data conversion information
From January 2003 onwards, almost all data conversions have been performed using software developed by the UK Data Archive. This enables standardisation of the conversion methods and ensures optimal data quality. In addition to its own data processing/conversion code, this software uses the SPSS and StatTransfer command processors to perform certain format translations. Although data conversion is automated, all data files are also subject to visual inspection by a member of the Archive s Data Services team.
With some format conversions, data, and more especially internal metadata (i.e. variable labels, value labels, missing value definitions, data type information), will inevitably be lost or truncated owing to the differential limits of the proprietary formats. A UK Data Archive Data Dictionary file (generally in Rich Text Format (RTF)) is usually provided for each data file, enabling viewing and searching of the internal metadata as it existed in the originating format. These
files are called:
[data file name]_UKDA_Data_Dictionary.rtf
Important information about the data format supplied
The links below provide important information about the Archive's data
supply formats. Some of this information is specific to the ingest
of the data, i.e. the format in which the Archive received the data
from the depositor. The ingest format for this study was
Please follow the appropriate link below to see information on your chosen supply (download)
Tab-delimited text (*.tab)
MS Excel (*.xls/*.xslx)
SAS (*.sas7bdat and *.sas)
MS Access (*.mdb/*.mdbx)
Conversion of documentation formats
The documentation supplied with Archive studies is usually converted to Adobe Portable Document Format (PDF), with documents bookmarked to aid navigation. The vast majority of PDF files are generated from MS Word, RTF, Excel or plain text (.txt) source files, though PDF documentation for older studies in the collection may have been created from scanned paper documents. Occasionally, some documentation cannot be usefully converted to PDF (e.g. MS Excel files with wide worksheets) and this is usually supplied in the original or a more appropriate format.