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| Mirenda, Pat | 1 |
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Peer reviewedMirenda, Pat; Locke, Peggy A. – Journal of Speech and Hearing Disorders, 1989
The investigation compared the transparency of 11 different types of symbols with 40 nonspeaking mentally retarded subjects (ages 4-20). Analysis indicated a hierarchy of difficulty with actual objects the easiest and Blissymbols and written words the hardest to understand. Results have implications for selecting initial symbol systems for…
Descriptors: Comprehension, Difficulty Level, Mental Retardation, Nonverbal Communication
