Residents 60 years of age and older of more than 22 Continuing Care Retirement Communities in the Lower Delaware Valley that are affiliated with the Philadelphia Gerontology Research Consortium.
Individuals are predominantly Caucasian, female and of upper class status.
They are in relatively good phsycial health. Location of individuals within discrete residence communities increases recruitment and data collection efficiency. Drop out rates are low. Community administration, medical staff, residence council. MCP Hahnemann University committee for the protection of human subjects.