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.
The letters and showcard used for the age 46 sweep of NCDS.
Instructions for the telephone survey used for the age 46 survey of NCDS.
Paper representation of the CATI quesionnaire for the 2004 sweep of NCDS
Self-completion booklet 2 for age 44 biomedical sweep of NCDS
Self-completion booklet for the NCDS Age 44 Biomedical sweep