This project aims to develop a culturally and linguistically-appropriate NACC UDS assessment battery for older Chinese Americans across the US.  The Principal Investigators (Dr. Li & Dr. Tee) have successful and longstanding track records of engaging older Chinese Americans in AD/ADRD research, and they have jointly created a registry of over 600 Chinese American older adults at the UCSF and Mount Sinai. Leveraging the existing Chinese American cohorts and ADRC research infrastructure, the study team will validate two written (Simplified and Traditional Chinese) and two spoken Chinese (Mandarin and Cantonese) versions of the NACC UDS assessment battery that are culturally and linguistically relevant to older Chinese Americans.