As discussed in Unit 3B, Shаwn's оriginаl interventiоn fоr skin picking (copied аnd pasted below for easy reference) consists of several different treatment components. After you review his treatment plan, though, you decide to simplify this intervention and just use differential reinforcement. What component of the treatment plan below is differential reinforcement? Reduction of Skin Picking Shawn engages in frequent skin picking on his arms, which functional assessment indicates is maintained by automatic reinforcement. In the current intervention, the therapist gives high quality social praise and delivers a token every time Shawn's hands are engaged with a designated "fidget" toy for a specific period of time. The clinic also has an environmental enrichment protocol (providing free access to varied tactile materials) and uses RIRD (response interruption and redirection) for potentially physically harmful behaviors. In this intervention, the therapist must physically block every attempt to pick and immediately prompt three rapid gross-motor actions (e.g., "touch your head"). Finally, Shawn's parents have suggested that he engages in more skin picking while watching videos on an iPad, so iPad time is restricted during therapy time.