The Centre for Longitudinal Studies (CLS) is an ESRC Resource Centre, based at the Institute of Education, University of London. CLS houses three of Britain's internationally-renowned birth cohort studies:
CLS provides support and facilities for those using data from the three studies, as well as conducting research using the cohort data, with a special interest in family life and parenting, family economics, youth life course transitions and basic skills. CLS does not provide access to the actual data.
Documentation available on CLS website includes: data dictionary, main findings, survey design, questionnaire, guide to the dataset, technical report, coding frame (downloadable in Adobe PDF)
Data are available from the UK Data Service. Registration required.