Апробация методики «Bayley Scales of Infant and Toddler Development – Third Edition»

Abstract

Introduction. There is currently no universal comprehensive measurement tool for the assessment of children development in the Russian Federation (RF). The Bayley-III scales developed by American researchers are widely used as such a tool. Numerous research groups recognize the need to modify the original scales before using them in a new linguistic and socio-cultural environment. Methods. The authors (a) translated the original Bayley-III manual into Russian, (b) tested the tool by assessing cognitive, language, and motor development of 163 Russian children aged 2–11 months, and (c) made an indirect comparison of the mean scale scores of neuropsychological development and those obtained from the original American sample of children using Student’s t-test. Results. The modified version of the Bayley-III manual has been successfully tested in the RF. The indices of language and motor development of the children examined in this study did not statistically differ from the original American data (10 points). Higher scores were obtained for the cognitive scale (10.7 versus 10; p = 0.003). However, this effect was not very pronounced (Cohen’s d = 0.25). Discussion. The indices of neuropsychological development of Russian children fully comply with the original Bayley-III norms, which opens up new possibilities for its use in the RF. Slightly higher scores of the cognitive scale among Russian children do not generally affect the compliance with the original tool, since the difference was not significant. The results of this study can be extrapolated to full-term Caucasian children aged 2–11 months, whose parents have at least secondary education and average level of earnings. The widespread use of Bayley-III requires its further adaptation in larger and more representative samples of children from different regions of the RF with the additional assessment of social-emotional development as well as adaptive behavior.

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