The Comparison of Primary Verbal, Nonverbal and Mathematical Concept Formation in 4-6-Year-Old Children with Normal and Impaired Hearing

Background and Aim: Hearing impairment through the primary episode of development has an undeniable effect on communicative language and cognitive ability of children. The purpose of this study was to compare primary verbal, nonverbal and mathematical concept formation, between children with and without hearing impairment.Methods: In this study 88 children with normal and impaired hearing were compared in four-, five- and six-year old age groups. Normal children were selected randomly and the other group consisted of the available children with impaired hearing. To evaluate verbal, nonverbal and mathematic concepts, a test was designed and developed based on language and cognitive developmental scale in normal children.Results: Significant difference was seen in the average scores in each concept class between normal and impaired hearing group in all age groups (p<0.05). There was no statistical significance between girls and boys. Hearing groups had statistical significant difference in each group of concepts (p