Project Summary/Abstract This is an administrative supplement to a currently awarded study, Impact of a Novel Socially Assistive Robotic Architecture on Engaging Older Adults with Mild Cognitive Impairment, Alzheimer’s Disease, and Related Dementia in Long Term Care Settings (R01AG062685). Apathy is common in persons with AD and ADRD with prevalence rates up to 72%. It is associated with further cognitive decline, functional deficits, reduced quality of life, social isolation, and increased mortality. Apathy imposes significant burden on LTC staff and negatively impact quality of care, staff satisfaction and turnover. Since few pharmacologic options exist, a major strategy is to foster older adults’ engagement in social, physical and cognitive activities, primarily those that are multimodal in nature. However, these interventions often require significant personnel time and resources, a major concern given the current nursing shortage and high turnover among LTC nursing personnel. The Centers of Medicare and Medicaid Services mandates LTC facilities to provide meaningful engaging activities for residents, which can be resource intensive and are difficult for many US LTC settings. The currently awarded study focuses on the use of an intelligent socially assistive robot (SAR) based architecture, called ARIA (Adaptive Robot-mediated Intervention Architecture), as an approach to engage older adult residents suffering from apathy. This interdisciplinary proposal is directly aligned with the NIA goals of understanding and developing effective interventions using smart technology to reduce the burden of age-related diseases and address the special caregiver needs of those caring for persons with dementia (PWD). This multi-phase, multi-site, mixed methods clinical trial will systematically examine responsiveness and engagement among persons with MCI or dementia to two types of SARs (humanoid and animal), its effect on cognitive, physical and social function as well as the impact of SARs on informal and formal caregivers with a goal towards future scalability and sustainability. The specific aims of the proposed research are to compare the effect of usual care (UC) group to UC+ARIA group on reducing apathy among older adults with mild cognitive impairment (MCI), mild dementia, or moderate dementia and to identify barriers and facilitators to SAR implementation across sites to address future scalability and sustainability. This study will contribute to the development of improved intelligent technology as an effective approach to engage older PWD with the long term goal of enhancing function and quality of life. This administrative supplement application is in response to the unforeseen and unavoidable consequences of the COVID-19 pandemic on long term care settings that has resulted in significant delays in study deployment, increased time and effort for long term care site recruitment, and increased time and effort in conducting the study from originally...