Here are links to surveys which include the CASP scale

The English Longitudinal Study of Ageing (ELSA): http://www.ifs.org.uk/elsa

ELSA is a biennial longitudinal study of those aged 50 and over living in England (N~12,000). CASP-19 has been included in the self-completion booklet in each wave since 2002.

The Survey of Health, Ageing and Retirement in Europe (SHARE): http://www.share-project.org

SHARE is a biennial longitudinal survey of those aged 50 and over living in Europe. It began in 2004 and covers people living in twenty European countries from Scandinavia to the Mediterranean and in Israel (N~110,000). CASP-12v1 has been included in the self-completion component in every wave.

The National Child Development Study (NCDS): https://goo.gl/Cdtq4n

The National Child Development Study (NCDS) follows the lives of over 17,000 people born in England, Scotland and Wales in a single week of 1958. Also known as the 1958 Birth Cohort Study, it collects information on physical and educational development, economic circumstances, employment, family life, health behaviour, wellbeing, social participation and attitudes. A 14-item version of the scale was used when the respondents were aged 50 and a 6-item version was used when they were aged 55. The NCDS is managed by CLS

The Irish Longitudinal Study of Ageing (TILDA): http://tilda.tcd.ie/

TILDA is a large-scale, nationally representative, longitudinal study on ageing in Ireland. The study 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. CASP-12v2 has appeared in the self-completion in both waves so far collected.

The Health, Work and Retirement Survey (HWR): http://www.massey.ac.nz/massey/learning/departments/school-of-psychology/research/hart/surveys.cfm

New Zealand’s Health, Work and Retirement (HWR) Longitudinal Study is a biennial government-funded study following a sample of middle-aged and young-old adults (aged 55-70) since 2006 in order to determine the factors that promote health and independence of older New Zealander’s in the transition from work to retirement, with a particular focus on successful ageing in older Māori (the indigenous people of New Zealand). The CASP-12v2 has appeared in the postal survey for every wave since 2010.