Accommodations- Changes in how test is administered that do not substantially alter what the test measures; includes changes in presentation format, response format, test setting or test timing. Appropriate accommodations are made to level the playing field, i.e., to provide equal opportunity to demonstrate knowledge.

Modifications- Substantial changes in what the student is expected to demonstrate; includes changes in instructional level, content, and performance criteria, may include changes in test form or format; includes alternate assessments.

Section 504 Plan - NH Dept of Education

Section 504 - Wrightslaw

  To Accommodate, To Modify, and To Know the Difference: Determining Placement of a Child in Special Education or "504"

Assessments & Accommodations- National Dissemination Center for Children with Disabilities (NICHCY)

Guidelines and Standards -What is the difference between accommodations and modifications?

What is the difference between a test accommodation and modification?

Section 504- a Civil Rights Law

Section 504 and IDEA Comparison Chart

 IEPs vs 504 Plans