Prevalence of Stuttering in Bilingual and Monolingual Primary Schools

ABSTRACT: The research purpose is to carry out an investigation into the prevalence of stuttering in bilingual and monolingual primary schools. The study population consisted of all the male and female students studying in the primary schools of Tehran and Ardebil. The monolingual students in Tehran and bilingual students in Ardebil comprised the population, out of which a sample of the 550 bilinguals (275 females and 275 males) and 550 monolinguals (275 females and 275 males) were selected using multistage cluster sampling. Methods: This fundamental research employed analytical-descriptive method and Chi-square and Logistic regression were used to analyze the data. The results revealed that there exists a statically significant difference between bilinguals and monolinguals with regard to the incidence of stuttering (level=0.001). Moreover, the ratio of the risk for speaking with stutter between girls and boys is 1 to 1.59, which supports the between-group difference between boys and girls (level=0.02).