THE MACARTHUR COMMUNICATIVE DEVELOPMENT INVENTORY AS A TOOL FOR DIAGNOSING LEXICAL DEVELOPMENT OF CHILDREN AGED 8-36 MONTHS
This article is based on analysis of the data of the MacArthur Communicative Development Inventory - questionnaires of speech and communicative development of children at an early age. The MacArthur CDI was translated into Russian by a group of authors: M. B. Eliseeva, E. A.Vershinina, V. L. Ryskina, S.N. Tseytlin. The research was conducted from 2000 to 2012. The data from 1805 questionnaires of children aged 8 to 36 months (902 girls and 903 boys) were entered in the database of the Russian version of the CDI. The norms of speech development are calculated both on the basis of average numbers and medians. Significant qualitative differences in the Russian versions of American questionnaires may be attributed to the peculiar features of the Russian culture and everyday life. Most lexical units in the Russian version are included in questionnaires from longitudinal studies. The norms that have been calculated can be used for speech diagnostics of both children with typical development and of those with speech dysontogenesis