Testing accommodations are some of the most-used and least-understood supports on an IEP. Their whole purpose is to remove a barrier that has nothing to do with the skill being tested, so the score reflects what the student knows rather than what their disability gets in the way of. Choose them well and a student's results finally tell the truth; choose them carelessly and you either under-support the student or change what the test measures. Here's a tour of the common ones and how to choose.
The principle behind every testing accommodation
A testing accommodation changes how a student accesses a test or shows what they know, without changing what the test measures or the standard for success. A read-aloud on a math test removes reading as a barrier so the test measures math, not decoding. The test for whether something is a legitimate accommodation: does it remove a disability-related barrier while leaving the actual skill being assessed intact? If it changes what's being measured, it's a modification, not an accommodation — and that's a different decision with bigger stakes.
Presentation accommodations
These change how the test is presented to the student:
- Read-aloud / text-to-speech — directions or items are read to the student (appropriate when reading isn't the skill being tested).
- Large print or magnification — for visual needs.
- Directions clarified or repeated — without giving away answers.
- Fewer items per page — to reduce visual overwhelm.
The read-aloud is the one to think hardest about: it's appropriate on a math or science test, but reading a reading-comprehension test aloud usually changes what's being measured.
Response accommodations
These change how the student answers:
- Scribe — the student dictates and an adult records, verbatim.
- Speech-to-text — for students who can't produce written output at pace.
- Answers marked in the test booklet instead of transferred to a bubble sheet.
- Word processor — for writing tasks where handwriting is the barrier.
Setting and timing accommodations
These change where and when the test happens:
- Extended time — usually time-and-a-half or double, for students who process or work more slowly.
- Small group or separate setting — fewer distractions.
- Frequent breaks — for attention or stamina.
- Testing across multiple sessions — to manage fatigue.
Choose from the need, and match daily practice
Two rules keep accommodation choices defensible. First, every accommodation should trace to a documented need — extended time for a processing-speed deficit, a scribe for a writing-output disability. An accommodation that isn't connected to a barrier is clutter. Second, testing accommodations should generally match what the student uses during instruction. A student who has never used text-to-speech all year shouldn't first encounter it on a high-stakes test, and many assessments require that the accommodation be part of routine instruction to be allowed.
Watch the rules for standardized tests
A critical caveat: state and standardized assessments have their own approved-accommodations lists, and not every accommodation that's fine for a classroom quiz is allowed on a state test. Some are permitted, some change the score's validity, and some are prohibited outright. Before an accommodation goes in the IEP for state testing, check your state's accessibility manual so you're not promising something that will be flagged on test day. Document each accommodation clearly — what it is, where it applies (classroom, district, state testing), and the need it addresses — so every teacher and proctor knows exactly what to provide.