Standards-based reform efforts are highly dependent on accurate assessment of all students, including those with disabilities. The accuracy of current large-scale assessments is undermined by construct-irrelevant factors including access barriers, a particular problem for students with disabilities. Testing accommodations such as the read-aloud have led to improvement, but research findings suggest the need for a more flexible, individualized approach to accommodations. The current pilot study applies principles of Universal Design for Learning to the creation of a prototype computer-based test delivery tool that provides students with a flexible, customizable testing environment with the option for read-aloud of test content.