Our studies
Here you will find all the documentation for our four 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.
Questionnaire for cohort members administered in the Age 33 sweep of NCDS.
Survey Report for NCDS4 with appendices
Annotated version of the questionnaire administered in the 4th sweep of NCDS
Note on open coded data in NCDS sweep 4
User Guide for the 4th sweep of NCDS
Coding Frame for exam results collected from schools in 1978
Seperate Coding frame for age 16 sweep of NCDS
Annotated version of the age 16 questionnaire for NCDS
NCDS Age 11 questionnaire and codebook
Annotated version of NCDS age 11 questionnaires
Find the latest developments and insights from across all our longitudinal studies.
Our bibliography is a searchable database of published work based on our cohort studies. Search by keyword, author, date range and journal.
Data from our studies are mainly available through the UK Data Service. We run training to support researchers who are interested in using our studies in their work.
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
