Summary
The evaluation of interventions to promote development in the early decades of life and interventions to prevent or slow the progression of the declines leading to Alzheimer’s Disease (AD) in people with Down syndrome (DS) requires psychometrically sound measures of change. The proposed project will build on one such psychometrically promising measure: Expression Language Sampling – Narration. In this project, we will expand the age range of validation, evaluate a linguistically and culturally appropriate Spanish-language version, and validate a new at-home caregiver-administered (telehealth-collected) version for individuals with DS.