Here you will find all the documentation for our studies. This includes survey questionnaires, interviewer instructions, showcards, technical reports, survey reports, and derived variables. For more information, take a look at our guide to the different documentation types.
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Showing 415 results.
User guides
Social isolation variables in the British cohort studies user guide
A user guide which describes the social isolation data collected across five British cohort studies, and explains the harmonisation process. It summarises available variables at different life stages and offers practical guidance on using the data.
Date published: 10 March 2025
Technical reports
BCS70 Age 51 Sweep Technical Report Appendix
Appendices to BCS70 Age 51 Sweep Technical Report.
Date published: 6 March 2025
Technical reports
BCS70 Age 51 Sweep Technical Report
BCS70 Age 51 Sweep technical report from National Centre for Social Research.
Date published: 6 March 2025
Questionnaires and interviewer instructions
BCS70 Age 51 Main Stage Questionnaire
Complete questionnaire for the Age 51 Sweep (Sweep 11) of the 1970 British Cohort Study, including interviewer instructions and modifications by mode.
Date published: 28 February 2025
Questionnaires and interviewer instructions
BCS70 Age 51 Self-Completion Questionnaire
Paper questionnaire completed privately by participants for the Age 51 Sweep (Sweep 11) of the 1970 British Cohort Study.
Date published: 28 February 2025
User guides
BCS70 Age 51 User Guide
The comprehensive guide to the data from the Age 51 Sweep (Sweep 11) of the 1970 British Cohort Study, carried out in 2021-24 when participants were aged 51-53 years.
Date published: 28 February 2025
User guides
Next Steps: Sweep 9 geographical identifiers user guide
A user guide which provides guidance and recommendations for using geographical identifiers in Next Steps Age 32 Sweep (Sweep 9) data.
Date published: 22 January 2025
User guides
Handling mode effects in the CLS cohort studies user guide (Nov 2024)
A user guide which provides guidance and recommendations for handling mode effects in CLS’ cohort studies through applied examples, using data from the National Child Development Study (NCDS) and Next Steps.
Date published: 26 November 2024
User guides
Handling mode effects in the CLS cohort studies user guide summary (Nov 2024)
A summary to a user guide which provides guidance and recommendations for handling mode effects in CLS’ cohort studies through applied examples, using data from the National Child Development Study (NCDS) and Next Steps.
Date published: 26 November 2024
User guides
MCS User Guide to the Linked Education Administrative Datasets
This user guide accompanies the datasets linking education data to the records of MCS participants based in England.
Version 3 (November 2024)
Date published: 25 November 2024
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
