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.
Showing 431 results.
User guides
Next Steps Linked Student Loans Company Administrative Datasets – User Guide
This guide describes the data linkage of student loans data from the Student Loans Company (SLC) to survey data for cohort members in Next Steps.
Date published: 18 October 2021
User guides
Next Steps Age 25 Survey – User Guide
This user guide provides information about the data arising from the Next Steps Age 25 sweep and supports the deposit of the data at the UK Data Archive.
Date published: 15 July 2021
Questionnaires and interviewer instructions
NCDS Age 62 Sweep – Content Summary
National Child Development Study Age 62 Survey – Overview of Content April 2021
Content of main CAPI Interview
Content of ‘Your Life Now’ Self-Completion
Content of the Life History Questionnaire – ‘Childhood’
Online Diet Questionnaire
Nurse Visit – Bio-measures
Date published: 20 April 2021
User guides
User guide to the MCS linked health administrative datasets – Scottish Medical Records (SMR)
This user guide describes the linkage of medical records, child health reviews and prescription and immunisation records in Scotland (henceforth “Scottish Medical Records”) to cohort members’ data in the Millennium Cohort Study (MCS).
Date published: 15 February 2021
User guides
BCS70 Hospital Episode Statistics (HES) User Guide
This guide describes the data linkage of health administrative records from the Hospital Episode Statistics (HES) to survey data for cohort members in the 1970 British Cohort Study (BCS70). User guide updated: 2025.
Date published: 8 February 2021
User guides
BCS70 Linked health administrative datasets – Scottish Medical Records (SMR)
User guide to 1970 British Cohort Study Linked health administrative datasets – Scottish Medical Records (SMR).
Date published: 1 February 2021
User guides
NCDS Age 44 User Guide to the Biomedical Dataset
User Guide to the Age 44 Biomedical Sweep of NCDS
Date published: 16 December 2020
User guides
MCS Age 17 Sweep User Guide
User guide for the Age 17 Sweep of the Millennium Cohort Study (MCS7).
Date published: 8 December 2020
User guides
NCDS Linked health administrative datasets – Scottish Medical Records
A userguide to National Child Development Study: Linked health administrative datasets – Scottish Medical Records (SMR).
Date published: 1 December 2020
User guides
Next Steps User Guide to Linked Health Administrative Datasets – Hospital Episode Statistics (HES)
This guide describes the data linkage of health administrative records from the Hospital Episode Statistics (HES) to survey data for cohort members in Next Steps. User guide updated: 2025.
Date published: 29 September 2020
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
