The effects of (a) private room, (b) typical classroom, and (c) high-distraction room test settings were examined on the math test performance of six college students (four females) with ADHD. Participants (aged 18-30 years) completed multiple, equivalent algebra calculation tests (100 items each) under the three test-setting conditions. A multi-element design was used to compare the number of items attempted (test access) and percentage correct (accuracy). Students also rated their level of distraction after each testing session on a Likert-type scale. Results showed that students found the high-distraction setting more distracting than other settings and that five of six students accessed more test items in the private room versus the high-distraction setting, with three of the six demonstrating nonoverlapping data across settings. A regular classroom setting did not produce a high level of distraction, nor did it restrict student access to the math tests relative to a private room setting. These findings suggest that some students with ADHD are affected negatively by highly distracting environments and may benefit from a quiet, private test setting. Single-case experimental designs may be useful for examining individual differences among students with disabilities receiving specific test accommodations.