The main aim of this study, which presents the Slovenian adaptation of the Macarthur-Bates Communicative Development Inventory CDI–III, was to investigate the characteristics of language development in monolingual Slovenian-speaking children aged 30–48 months. In addition, we examined the relationships between different measures of child language assessed by the CDI–III, namely vocabulary, grammar and metalanguage. The sample comprised 301 children whose language was assessed by their parents using the Slovenian version of the CDI–III. The results indicate that language development at this age continues to progress relatively quickly, particularly in terms of children’s metalinguistic abilities, although there are large individual differences in language ability between children of the same age. The findings also indicate that some of the pre-existing relationships established between the different domains of infant and toddler language ability persist into early childhood, with vocabulary emerging as an important predictor of children’s grammar.

中文翻译：

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单语斯洛文尼亚语儿童 30 至 48 个月的语言发展：一项使用斯洛文尼亚语改编的麦克阿瑟-贝茨交际发展量表 CDI-III 的研究


本研究的主要目的是调查 30-48 个月大的单语斯洛文尼亚语儿童的语言发展特征，该量表对麦克阿瑟-贝茨交际发展量表 CDI-III 进行了斯洛文尼亚改编。此外，我们检查了 CDI-III 评估的儿童语言的不同测量方法之间的关系，即词汇、语法和元语言。样本包括 301 名儿童，他们的父母使用斯洛文尼亚语版本的 CDI-III 评估他们的语言。结果表明，尽管同龄儿童之间的语言能力存在很大的个体差异，但这个年龄段的语言发展继续相对较快地发展，特别是在儿童的元语言能力方面。研究结果还表明，婴幼儿语言能力的不同领域之间建立的一些预先存在的关系一直持续到儿童早期，词汇成为儿童语法的重要预测指标。