Returning Research Results That Indicate Risk of Alzheimer Disease Dementia to Healthy Participants in Longitudinal Studies

All arms will receive the same intervention, but at different time points. All arms will be offered the option to learn their research results in personalized five-year risk estimate of getting Alzheimer disease dementia. Arms A \& C participants will receive their risk estimate about two weeks after consent is signed and Arms B\& D will receive their risk estimate about one year after consent is signed. The risk estimate returned to participants is based on research results from individual genotyping results, imaging or plasma amyloid testing \& demographic characteristics. All arms will complete psychosocial and cognitive testing. Also, surveys used in this study will ask about participants' experiences and feelings after learning their risk estimate. All arms will receive follow up calls at one week post disclosure of the risk estimate and surveys two, six, and twelve months post disclosure. Arms A \& C will have extra surveys at twenty-four months post disclosure.