National Center on Education Outcomes
A Summary of the Research on Test Accommodations for English Learners and English Learners with Disabilities: 2010-2018
NCEO Data Analytics: AA-AAS Participation Rate from 2007-08 to 2016-2017 (#12)
Did you know?
The most commonly studied accommodations by researchers are Extended Time and Oral Delivery (e.g., Read Aloud, Text to Speech).
From A Summary of the Research on Effects of Test Accommodations, 2015-16 by C.M. Rogers, M.L. Thurlow, S.S. Lazarus, & K.K. Liu (2019).