As a child matures, and the vocabulary size continues to grow, sentence length, called mean length of utterance (MLU) (Brown, 1973), also increases. The child uses grammatical rules more accurately, and more complex uses of the parts of speech emerge. The child’s language use also reflects the cognitive and social growth occurring at the same time. Another influence is the amount of verbal interaction the child has with his or her parent or caregiver, as the child responds to both the social and language experience and expertise of another person.
For this Assignment, you examine the expressive vocabulary of a preschooler to determine his/her language development.
· Review this week’s Learning Resources, focusing on lexical and morphological language development in children.
· Review the questions in the “Examining Vocabulary Development” document to familiarize yourself with the requirements of the Assignment. Then, analyze one of the Child Language Sample videos in the Learning Resources using the document.
The Assignment (2–3 pages):
Submit a 2- to 3-page paper in which you do the following:
· Identify which video you selected. Calculate the MLU of the child in the video using the guiding questions in the “Examining Vocabulary Development” document and the MLU normative chart.
· Explain how this data informs the language development of this child.
· Based on what you have learned so far, how does this child’s vocabulary development correspond with normative development?
Resources for this week’s answer, Please use
Gleason, J. B., & Ratner, N. B. (2017). The development of language (9th ed.). Boston, MA: Pearson.
- Chapter 5, “Putting Words Together: Comprehension and Production of Morphology and Syntax in the Preschool Years” (pp. 104–136)
Baby Sign Language. (2017). Retrieved from http://www.babysignlanguage.com/
Center for Speech and Language Pathology. (n.d.). Early morphological development. Retrieved January 31, 2016, from http://www.speechtherapyct.com/whats_new/Early%20Morphological%20Development.pdf
Nelson, L. H., White, K. R., & Grewe, J. (2012). Evidence for website claims about the benefits of teaching sign language to infants and toddlers with normal hearing. Infant and Child Development, 21(5), 474–502. doi:10.1002/icd.1748
Note: You will access this article from the Walden Library databases.
Stratton-Kehl Publications. (2017). Baby sign language. Retrieved from https://www.drjosephgarcia.com/
Pizer, G., Walters, K., & Meier, R. P. (2007). Bringing up baby with baby signs: Language ideologies and socialization in hearing families. Sign Language Studies, 7(4), 387–430. doi:10.1353/sls.2007.0026