In fact there is study that shows typical adults cannot guess meaning from supporting symbols. There is essentially no research indicating that this practice improves the understanding of these texts by individuals with intellectual or developmental disabilities (IDD) or by individuals with IDD and complex communication needs (CCN). They also distract from reading the actual text. The symbols do little to nothing to improve understanding. The final might be read as “left class bus road city take bus”. The second might be read as “bad person broken arm lots people down Florida city, Florida”. The first example might be read as “bird home bird cage give house” to an unfamiliar person.
If you look at the symbols alone, as a non-reader would do, it is very difficult to know what is being said. As you can see symbols from a variety of companies are placed above or below the written text.
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