Scholars@Duke
Abby Rader

Scholarly Works

Caregiver Meaningful Score Differences and Meaningful Score Regions for the Observer-Reported Communication Ability Measure for Individuals with Angelman Syndrome.

Journal article Value Health · February 23, 2026 OBJECTIVES: This study presents a novel method for estimating meaningful score differences (MSDs) and meaningful score regions (MSRs) for the Observer-Reported Communication Ability (ORCA) Measure for individuals with Angelman syndrome (AS). METHODS: The A ... Full text Link to item Cite

Association of the Observer-Reported Communication Ability (ORCA) Measure with Established Communication Measures: Insights From the Angelman Syndrome Natural History Study.

Journal article J Autism Dev Disord · January 23, 2026 BACKGROUND: The Observer-Reported Communication Ability (ORCA) measure was developed to assess communication in individuals with Angelman syndrome (AS), a rare neurodevelopmental disorder characterized by severely impaired communication, global development ... Full text Link to item Cite