A randomized pretest-posttest control group design was utilized to measure the effects of a platform swing on independent work behaviors of 30 children with Autism Spectrum Disorders (ASD). Participants engaged in two 5-min intervals of independent work. Between the intervals, participants in the treatment group received 5 min of vestibular stimulation using a platform swing and children in the control group watched a video. No significant differences were evidenced between the treatment and control groups on engagement, on-task behavior, stereotyped/repetitive behavior, or out-of-seat behavior. Changes noted for individual participants could not be linked to age, diagnosis, or sensory profile patterns.