Development of Korean Ewha-AAC Symbols: Validity of Vocabulary and Graphic Symbols

Abstract

Background and Objectives: Cultural appropriateness of AAC vocabulary and graphic representation is an important characteristic of the line-drawing AAC symbol system. The purpose of this study was to develop a graphic symbol system which reflect Korean culture of school and life in general. Method: Korean AAC vocabulary set was developed by analyzing various high-tech communication devices and symbol software as well as collecting age specific vocabulary for children, school-aged students, and adults with disabilities. color line drawing graphic symbols were designed for the AAC vocabulary set and were verified multiple times by professionals such as special educators and SLPs who had extensive teaching experience with students with complex communication difficulties. Results: About 10,000 graphic symbols were developed and high validity score was obtained. Conclusion: The development of Ewha-AAC symbol system is meaningful in consideration of age range and cultural context as well as having balance between situational vocabulary and developmental vocabulary. Further study is recommended for symbol iconicity and expansion.