Documentation

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.

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User guides

Bristol Social Adjustment Guide Forms at ages 7 and 11 – User Guide

This document has been prepared to accompany the deposit with the UK Data Service at the University of Essex, of all available completed Bristol Social Adjustment Guide forms collected in sweeps 1 and 2 of the National Child Development Study when cohort members were seven years old in 1965 and eleven years old in 1969.


Date published: 3 March 2022
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User guides

Handling missing data in the National Child Development Study – User Guide

This user guide aims to describe and illustrate a straightforward approach to missing data handling, while detailing some more general considerations around missing data along the way.


Date published: 12 July 2021
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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
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User guides

Partnership Histories Guide (1974-2013)


Date published: 1 November 2017
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User guides

Activity Histories Guide (1974-2013)


Date published: 1 October 2016
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User guides

NCDS Perinatal Mortality Survey User Guide: Additional Variables

Guide to additional variables deposited for NCDS PMS in 2014


Date published: 1 July 2014
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Ethical review and consent

NCDS Ethical Review and Consent

Review of the ethical practices throughout NCDS


Date published: 2 June 2014
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User guides

NCDS Age 7-11 Bristol Social Adjustment Guides

This document draws together information available on the Bristol Social Adjustment Guides (BSAG) – key measures of behaviour that were gathered for members of the National Child Development Study.


Date published: 1 January 2013
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User guides

NCDS Age 7-16 Measures of Ability

This document draws together information available on the key measures of ability that were gathered from members of the National Child Development Study (NCDS) during the three surveys carried out during the school years of the birth cohort.


Date published: 1 December 2012
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User guides

NCDS revised region variables


Date published: 1 March 2012
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User guides

NCDS Age 23-50 Partnership Histories

A guide to the partnership histories dataset collected from age 23 onwards


Date published: 1 November 2011
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Derived variables

Deriving highest qualification in NCDS and BCS70

This Data Note explains the derivation of variables on Highest Educational Qualification obtained by cohort members in the National Child Development Study (NCDS) and the 1970 British Cohort Study (BCS70).


Date published: 1 January 2011
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Centre for Longitudinal Studies
UCL Social Research Institute

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London WC1H 0AL

Email: clsdata@ucl.ac.uk

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