TILDA- The Irish Longitudinal Study on Ageing

TILDA collects information on all aspects of health, economic and social circumstances from people aged 50 and over in a series of data collection waves once every two years. TILDA provides a comprehensive and accurate picture of the characteristics, needs and contributions of older persons in Ireland to inform and support improvements in policy and practice; advancements in technology and innovation; tailored education and training through an enhanced ageing research infrastructure; harmonisation with leading international research to ensure adoption of best policy and practice and comparability of results. **Purpose:** The Irish Longitudinal study on Ageing (TILDA) is an inter-institutional initiative led by Trinity College Dublin which aims to produce improvement in the quantity and quality of data, research and information relating to older people and ageing in Ireland. In scope: Eligible respondents for this study include individuals aged 50 and over and their spouses or partners of any age. The study will involve interviews on a two yearly basis with a sample cohort of 8,000+ people aged 50 and over (or t **Coverage:** A nationally representative sample of adults aged 50 and over, resident in Ireland, was selected. An initial multi-stage sample of addresses was chosen by means of the RANSAM sampling procedure, which was developed by the Economic and Social Research Institute (ESRI) based on the Irish GeodirectoryO