During PECS implementation, a child consistently requests the same item repeatedly. What is the MOST likely explanation and appropriate intervention?

The most likely explanation for a child consistently requesting the same item repeatedly during Picture Exchange Communication System (PECS) implementation is that they have discovered it is a highly effective reinforcer and are using it to reliably obtain attention or the item itself. PECS, or Picture Exchange Communication System, is a structured teaching method that uses pictures to help individuals with autism or other communication challenges learn to initiate communication. Reinforcers are items or activities that motivate behavior; they are things the child *really* wants. A child's consistent request indicates the item provides a strong positive consequence, making the behavior (requesting) more likely to occur again. Initially, PECS focuses on teaching the child to exchange a picture of a desired item for the item. This establishes the fundamental communication skill. If a child finds a particular item ....