ERIC Number: EJ696879
Record Type: Journal
Publication Date: 2004-Dec-1
Reference Count: N/A
Utterance Length and Lexical Diversity in Cantonese-Speaking Children with and without Specific Language Impairment.
Klee, Thomas; Stokes, Stephanie F.; Wong, Anita M.-Y.; Fletcher, Paul; Gavin, William J.
Journal of Speech, Language, and Hearing Research, v47 n6 p1396 Dec 2004
Two studies of children's conversational language abilities are reported. In the first, mean length of utterance (MLU) and lexical diversity (D) were examined in a group of typically developing Cantonese-speaking children in Hong Kong. Regression analyses indicated a significant linear relationship between MLU and age (R = .44) and a significant curvilinear relationship between D and age (R = .73) in children age 27-68 months. MLU and D were moderately correlated with each other (r = .23); however, the two measures showed no statistical relationship when the effect of age was partialled out. In a second study, the utterances of Chinese children with specific language impairment (SLI) were found to be significantly shorter and less lexically diverse than typically developing children matched for age but similar to children matched for comprehension level. Discriminant analyses revealed that the combination of age, MLU, and D could be used to accurately differentiate children with SLI from both age-matched and language-matched children. Based on these findings, we hypothesize that these measures can be used jointly as a marker of SLI in Cantonese-speaking children.KEY WORDS: child language development, child language disorders, specific language impairment, lexical diversity, Cantonese, MLU
American Speech-Language-Hearing Association, 10801 Rockville Pike, Rockville, MD 20852. Tel: 301-897-5700, ext. 4164; Fax: 301-897-7348
Publication Type: N/A
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Hong Kong
Identifiers - Assessments and Surveys: Mean Length of Utterance