Development Trajectory Analysis Essay

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Purpose: ● Cochlear implant plays an important role in the speech and language development in children not exposed to the input of language. It is known that children that are exposed to auditory input critical to learn language have benefited. ● Explore the effects age of implantation has on speech and language development in children that have cochlear implants (CI). ● Purpose: The purpose of this study is examine speech perception and language skills in congenitally deaf children who were implanted in the second, third and fourth year of life. The method of analysis is Development Trajectory Analysis (DTA) examines the outcome measure over time: area of development and develop an estimate as an average. ● Also compare deaf children with cochlear implant with children of their own age and what does this tell us about the sensitive period of…show more content…
The children were congenitally deaf. ● They are split into three groups according to their age of implantation- 12 children were implant in 2 year of life. 34 children in 3 year, 29 children in 4 year of life. ● Measure outcome: language development was assessed using REYNell Developmental Language Scales - tested receptive and expressive language, and Macarthur Communicative Developmental Inventories- offers a valid and efficient means of assessing early language development. Both these test are used for both normal hearing and users of either oral or all communication. ● Also assessed using Mr. Potato head test as open set for word recognition. ● For data analysis DTA method compared two different age groups to their language development age. ● The results for how speech perception affected result in how they would do before and after implantation by looking at their age. They come up with an equation. ● The independent variable is age of intervention and dependent variable is outcome of
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