Administer protocol-specified psychometric rating scales for participants across a wide range of diagnoses, including Alzheimer's Disease, Mild Cognitive Impairment, MDD, Anxiety Disorders, ADHD, Bipolar Disorder, PTSD, Schizophrenia/Schizoaffective Disorder, and Substance Use Disorders. Working as part of a multidisciplinary research team, this role administers and scores protocol-specified psychometric rating scales, ensures participant safety, and maintains data integrity in full compliance with study protocols, SOPs, GCP, ICH guidelines, and applicable FDA regulations.