Review and comparison of content growth in word definition of Persian speaking children with 4.5 to 7.5 years of age
Background and Aim: Word definition is one of the complicated language skills that require education and linguistic awareness. In this study, comparison was made in word definition ability of children between ages of 4.5 to 7.5 years.
Methods: This study was cross-sectional and descriptive-analytical in nature. Participants included 107 girls and boys who where in age group 1 (54-65 months), age group 2 (66-77 months), and age group 3 (78-90 months). They were selected by multistage sampling method and recruited from nurseries and primary schools in 1, 7, and 17 municipal districts of Tehran. Word definition task was performed on each subject. The reliability was assessed by two independent values and the validity was determined by the content. Kruskal-Wallis and Mann-Whitney U statistical methods were used for analysis.
Results: Mean score of the content in word definition was significantly increased by age (p=0.001). In the second and third age groups there was no significant difference in the content of word definition. The most response that used in all ages was the functional response. With increasing age, error rate (p=0.002) and identical (p=0.003) responses significantly decreased; however, percentage use of combination II (p<0.001) responses significantly increased.
Conclusion: By increasing age, quality of definitions in terms of content is improved and definitions change from functional and concrete responses to combination II definitions.
2. Luria AR. Language and cognition. 1st ed. New York: Wiley; 1982.
3. Marinellie SA, Johnson CJ. Adjective definitions and the influence of word frequency. J Speech Lang Hear Res. 2003;46(5):1061-76.
4. Marinellie SA, Johnson CJ. Definitional skill in school-age children with specific language impairment. J Commun Disord. 2002;35(3):241-59.
5. Nippold MA. School-age children and adolescents: norms for word definition. Lang Speech Hear Serv Sch. 1995;26(4):320-5.
6. Skwarchuk SL, Anglin JM. Expression of superordinates in children's word definitions. J Educ Psychol. 1997;89(2):298-308.
7. To CK, Stokes S, Man Y, T'sou B. An analysis of noun definition in Cantonese. Lang Speech. 2013;56(Pt 1):105-24.
8. Kikas E. The development of word definitions in children. J Russ East Eur Psychol. 1993;31(2):40-54.
9. Mohammadi M, Nilipoor R, Shirazi TS, Rahgozar M. Semantic Differences of definitional skills between persian speaking children with specific language impairment and normal language developing children. Journal of Rehabilitation. 2011;12(2):48-55. Persian.
10. Firouzabadi SA, Imani Jajarmi H. Social capital and socio-economic development in Tehran's 22 municipal districts. Soc Welfare. 2007;6(23):197-224.
11. Chan YL, Marinellie SA. Definitions of idioms in preadolescents, adolescents, and adults. J Psycholinguist Res. 2008;37(1):1-20.
12. Benelli B, Belacchi C, Gini G, Lucangeli D. 'To define means to say what you know about things': the development of definitional skills as metalinguistic acquisition. J Child Lang. 2006;33(1):71-97.
13. Snow CE. The development of definitional skill. J Child Lang. 1990;17(3):697-710.
14. Nelson K. Concept, word, and sentence: Interrelations in acquisition and development. Psychol Rev. 1974;81(4):267-85.
15. Marinellie SA. The content of children's definitions: the oral-written distinction. Child Lang Teach Ther. 2009;25(1):89-102.
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