Limited research has examined the integration of occupational therapy (OT) and ABA approaches. This study evaluated the implementation of deep pressure stimulation (DPS) contingently and noncontingently using a multielement single-case design with a reversal to determine effects on problem behavior, on-task behavior, and physiological arousal. Deep pressure is a commonly used sensory-based intervention in OT and has been identified as a reinforcer making it important to understand how delivery schedules impact behavior essential for learning and functional participation. The results suggest both delivery schedules improve problem behavior and on-task behavior, yet delivery of DPS noncontingently was slightly more effective at reducing problem behavior, and contingent delivery was substantially more effective at increasing on-task behavior. The impact on physiological arousal and clinical implications of these findings for both ABA and OT are discussed.