What is the difference between "accommodations" and "modifications" in assessments?

What is the difference between "accommodations" and "modifications" in assessments?

• A. Accommodations adapt the way a test is administered; modifications alter the content or difficulty of the test.
• B. Accommodations change the learning objectives; modifications do not.
• C. Accommodations are universal tools; modifications are never allowed.
• D. Accommodations and modifications are the same.

Answer: (A)

Accommodations adjust how a test is taken without changing what is being measured, while modifications change what is being measured by altering the content or difficulty. For example, providing extra time, a reader, a quiet testing room, or a scribe helps a student access the same questions and demonstrate their knowledge without changing the task itself. Modifications, by contrast, involve changing the actual test content or level of difficulty—such as giving easier problems, reducing the number of items, or substituting tasks that tap into a different or simpler skill set. This distinction matters because accommodations preserve the test’s construct so a student can show their true abilities, whereas modifications shift the construct by altering the scope or difficulty of the assessment. That’s why the former adapts delivery and format, while the latter changes what is being tested.

Accommodations adjust how a test is taken without changing what is being measured, while modifications change what is being measured by altering the content or difficulty. For example, providing extra time, a reader, a quiet testing room, or a scribe helps a student access the same questions and demonstrate their knowledge without changing the task itself. Modifications, by contrast, involve changing the actual test content or level of difficulty—such as giving easier problems, reducing the number of items, or substituting tasks that tap into a different or simpler skill set.

This distinction matters because accommodations preserve the test’s construct so a student can show their true abilities, whereas modifications shift the construct by altering the scope or difficulty of the assessment. That’s why the former adapts delivery and format, while the latter changes what is being tested.