بررسي فرايندهاي واجي كودكان فارسي زبان 2 تا 4 ساله

PhonologicalProcesses of2-4 Years Old Farsi Children

Objective: Phonological process es are the changes which children make in pronunciat ion while uttering words.The present study aimed at investigat ing phonological processe s of2-4 years old Farsi-speaking children . Materials & Methods: Th e subjects of this cross-sect ional and descriptive-analyt ical study included 128 24-48 month s old Fars i-speaking boys and girls without any auditory, visual, phy sical, mental, sp eech, language, emotional, structural and functional articulation disorders. They wer e selected by simple random sel ection method from nurseries of different areas of Tehran. The research tool was an experimental and researcher made test of phonological processe s which were designed for this study, and comp osed of 43 one-to-four syllable words including all Fars i phonemes by whi ch the cat egories of syllable stru cture, consonant substitution, vowel substitution, complete assimilation, replacement and other processes were gathered and assessed. The data were analyzed by Independent T-test, Man- Whitney, One-way ANOVA and Kruskal-Wallis . Results: Findings showed no significant difference at phonological processe s between boys and g irls (P>0.05) . Phonological processes showed a decrease trend by increasin g age. Diffe rent age groups revealed significant difference in syllable structure (P