Accommodations are adjustments or changes to educational procedures. When a child receives accommodations in school, the process may change, but the measurement will not. For example, a student receives extra time to complete a test. The process has been adjusted, however, the grading of the test will remain consistent with the class as a whole. Accommodations are most common in school, however, individuals with ADHD can also receive accommodations in the workplace under the Americans with Disabilities Act.
For more information: The Difference Between Accommodations and Modifications