The authors noted that students with learning disabilities (LD) represent the largest disability group in schools, and extended time the most common test accommodation requested by such students. The authors reported in this study, results indicated that typical students actually benefited more than the LD group when given extra time, indicating that extended time is not a test accommodation that is specific to those with a disability. Moreover, when only students with LD were given extended time, especially double time, they outperformed nondisabled peers.
Lewsndowshi, Lawrence, Cohen, Justin, and Lovett, Benjamin J. (2013). Effects of Extended Time Allotments on Reading Comprehension Performance of College Students With and Without Learning Disabilities. Journal of Psychoeducational Assessment, 31, 326-336