Context: Computerized neuropsychological testing batteries have provided a time-efficient and cost-efficient way to assess and manage the neurocognitive aspects of patients with sport-related concussion. These tests are straightforward and mostly self-guided, reducing the degree of clinician involvement required by traditional clinical neuropsychological paper-andpencil tests.Objective: To determine if self-reported supervision status affected computerized neurocognitive baseline test performance in high school athletes.Design: Retrospective cohort study. . They reported taking the test either supervised by a sports medicine professional or unsupervised. These athletes (n ¼ 2140) were subjected to inclusion and exclusion criteria and then matched based on age, sex, and number of prior concussions.
Main Outcome Measure(s):We extracted demographic and performance-based data from each de-identified baseline testing record. Paired t tests were performed between the selfreported supervised and unsupervised groups, comparing the following ImPACT baseline composite scores: verbal memory, visual memory, visual motor (processing) speed, reaction time, impulse control, and total symptom score. For differences that reached P , .05, the Cohen d was calculated to measure the effect size. Lastly, a v 2 analysis was conducted to compare the rate of invalid baseline testing between the groups. All statistical tests were performed at the 95% confidence interval level.Results Conclusions: Speed-based tasks were most affected by self-reported supervision status, although the effect sizes were relatively small. These data lend credence to the hypothesis that supervision status may be a factor in the evaluation of ImPACT baseline test scores.