A report providing an update on the state of the research on testing accommodations as well as to identify promising future areas of research. Previous reports by NCEO have covered research published since 1999. NCEO summarizes the research to review current research trends and enhance understanding of the implications of accommodations use in the development of future policy directions, implementation of current and new accommodations, and valid and reliable interpretations when accommodations are used in testing situations. For 2011 and 2012, 49 published research studies on the topic of testing accommodations were found. The studies in 2011-2012 demonstrated several similarities when viewing them in comparison with previous research, especially in relation to the 2009-2010 studies examined in NCEO's previous accommodations research review.