Symbols can improve the reading comprehension of adults with learning disabilities.

Researchers added Widgit Rebus symbols above every content word in short reading passages. Adults with mild or borderline learning disabilities read the same passages twice—once with symbols and once without.

The team used an alternating-treatments design. Each adult read different passages in each condition across several sessions.

Comprehension scores jumped when symbols were present. Adults answered more questions correctly after reading the symbol-filled pages.

The gain showed up for every participant. Symbols gave an immediate boost with no extra training.

Castañe et al. (1993) watched adults with ID struggle to notice confusing parts of text. The new study shows that adding pictures can prevent that confusion before it starts.

Kelleher et al. (1987) found that adults with mild ID make unclear references when they retell stories. Symbols now give them clearer visual anchors while they read.

Wanchisen et al. (1989) boosted comprehension by changing how text was read aloud. Jones et al. (2007) prove you can also boost comprehension by changing how text looks on the page.

If you support adult learners with ID, you can slide free Rebus symbols into any handout, menu, or workplace manual right now. No extra sessions, no special software—just print and hand over. Expect better recall of safety rules, medication steps, or job tasks the same day.