Davos Alzheimer's Collaborative Study: Sequential Administration of Digital Testing To Screen For Cognitive Impairment Followed By Blood Based Biomarkers To Assist With Timely Detection And Accurate Diagnosis Of Alzheimer's Disease

Inclusion Criteria Subjects must meet the following criteria for entry into the study: 1. Male or female \> 65 years of age at the time of consent; 2. Understand and voluntarily sign an informed consent form; Inclusion criteria is assessed at both e-consent (assessed by participant's self-reporting of age and understanding) and in-person consent at TRI (assessed by clinical research coordinators in TRI). Exclusion Criteria Subjects who meet any of the following criteria will not be eligible for entry into the study: 1. Subjects who are unable to hear and see well enough to complete the assessments; 2. Prior diagnosis of dementia or Alzheimer's disease documented in their medical record and/or as diagnosed by a physician; Exclusion criteria is assessed by by participant's self-reporting of understanding and not having a prior diagnosis of dementia at the time of e-consentand visit 1 at TRI. ).