Which of the following is a disadvantage of using PECS?

The statement that using PECS (Picture Exchange Communication System) could potentially delay speech is considered a disadvantage because it highlights a concern among some practitioners and parents regarding the method's impact on a child's verbal communication development. While PECS is an effective augmentative communication system for individuals with limited speech, there is a belief that reliance on visual symbols might inhibit the natural progression to spoken language in certain users. If a child becomes reliant on pictures for communication, they might not feel the motivation or need to develop vocal speech, potentially delaying its emergence.

Conversely, the other options reflect advantages of the PECS system rather than disadvantages. Facilitating easy communication access emphasizes how PECS helps individuals express their needs and thoughts effectively through visual aids. Supporting imaginative play indicates that PECS can be integrated into playful contexts, promoting social interactions and creativity. Encouraging extensive verbal expression suggests that while PECS primarily uses visuals, it can also serve as a bridge to developing more complex language skills, as users may begin to imitate and initiate speech as they become more comfortable with communication.