Investigating the cognitive and intellectual development of people with Down syndrome according to the Stanford Binet Intelligence Test Cognitive

Children with Down syndrome have delays in motor, language, self-support, cognitive and social development. Knowing the cognitive and behavioral phenotype of people with Down syndrome informs us about the psychological nature of people with Down syndrome. Finally, it helps to treat, educate and rehabilitate and provide intervention to these children to increase the cognitive development of this group of people. Therefore, this study was conducted to investigate the cognitive profile of Down syndrome students in comparison with normal students and also the evolution of the cognitive profile of this group in comparison with normal students.

For this purpose, 100 students of Down syndrome and normal age were randomly selected from exceptional and normal schools in the age group of 10-14 years. Finally, the age groups of Down syndrome students and students with normal growth were classified into 3 groups of 6-8 years, 11-9 years, 14-12 years. Finally, the age groups of Down syndrome students and students with normal growth were classified into 3 groups of 6-8 years, 11-9 years, 14-12 years. The tool used in this study is the fifth version of the Stanford Binet Intelligence Test.

The results of statistical analysis of this study using multivariate analysis of variance and Tukey's follow-up test show that in people with Down syndrome compared to normal children, non-verbal fluid reasoning, non-verbal knowledge and working memory are reduced with increasing age. If there are no significant changes in the cognitive profile in the rest of the subscales. However, Down syndrome, like the group of people with normal growth, did not change with the general growth of verbal and nonverbal intelligence and general intelligence with increasing age.

Therefore, in the rehabilitation of people with Down syndrome, can be considered their cognitive defects and their cognitive development and intelligence.