I only know the basics - there are GMAT versions for people with different disabilities and depending on the disability, there are some differences. My guess is that there are also versions of the GMAT Prep that accomodate test takers with disabilities. Here are the ones most commonly provided:
* Additional testing time (all tests are timed)
* Additional or extended rest breaks
* Allowance of a medical device in the testing rooms
* A trackball mouse
* A reader who can read the test items to the test taker and record test taker responses
* A recorder to record test taker responses
* Enlarged font on the PC monitor
* A sign language interpreter
More information is listed here:
https://www.gmac.com/gmac/thegmat/testta ... rs/ada.htmRegistration form for applicants with disabilities:
https://www.mba.com/NR/rdonlyres/B66D7B8 ... orm_v1.pdf