Download or read book Development of a Mandarin Expressive and Receptive Vocabulary Test for Children Using Cochlear Implants written by Xiaopan Lu and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Development of a Mandarin Expressive and Receptive Vocabulary Test for Children Using Cochlear Implants" by Xiaopan, Lu, 吕小攀, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Cochlear implants provide children who have profound hearing loss access to sounds and improve their speech perception, speech production and language skills. Outcomes on language development are useful for counseling and in planning habilitation programs. However, such research in mainland China is scarce due to a lack of standardized language measurement materials. This study aims at developing a vocabulary measurement named the Mandarin Expressive and Receptive Vocabulary Test (MERVT) for Mandarin-speaking children with cochlear implants. In Phase 1, items were selected from the existing vocabulary tests, corpus, story books and TV programs that were suitable for children with normal hearing aged 1 year and 6 months to 3 years and 11 months. These items were rated for age-appropriateness by kindergarten teachers. Based on the teachers' ratings, 200 words were selected to form the initial vocabulary test. In Phase 2, responses from 102 normal-hearing preschool children were used for item analysis and identifying items with appropriate difficulty and discriminatory ability. Finally, 161 items with difficulty from 0.15 to 0.85 and discrimination greater than 0.25 were kept and ranked in an order of ascending difficulty to form the final test. In Phase 3, 245 normal-hearing children aged 1 year and 6 months to 3 years and 11 months were recruited to establish norms and evaluate psychometric properties of the test. In the last phase, 29 children with cochlear implants were recruited in the study to evaluate the validity of the MERVT for measuring the vocabulary development of children with cochlear implants. The results of the 245 normal-hearing children show that there is good internal consistency among items in both the expressive and receptive subtests (α = .83-.97). Item selection from language materials for Mandarin-speaking preschool children, the ratings by kindergarten teachers and item analysis based on the responses of target children provided evidence of content validity. Significant relationships between the MERVT and the Gesell Developmental Scale (rs = .37-.60, all psIn conclusion, with good reliability and strong validity, the MERVT could be used for evaluating vocabulary development in young children. The test has also been proven to be a valid tool for measuring and monitoring the vocabulary development of children with cochlear implants. In addition, the MERVT and the CCDI can be used together in a hierarchical set of battery tests for measuring the vocabulary development of children with cochlear implants based on the age equivalents. DOI: 10.5353/th_b5053359 Subjects: Hearing impaired children - China - Language