A large number of children are exposed to more than one language. One well-established method of assessing early vocabulary development in monolingual children is parent report; however, its use in bilingual/multilingual contexts is less established and brings unique challenges. In this methodological scoping review, we reviewed studies of early vocabulary development using parent report with bilingual/multilingual children (January 1980–March 2022). A total of 576 articles were screened, yielding 101 studies for analysis. The number of studies on bilingual/multilingual vocabulary has grown in the last two decades; yet representation of the world's languages remains sparse. The majority of studies assessed bilingual/multilingual children's vocabulary in each language and used instruments adapted for linguistic and cultural characteristics. However, the field could benefit from standardized reporting practices regarding definitions of bi/multilingualism, selection of reporters, and tool development and is in critical need of studies that develop, validate, and norm parent report instruments specifically for the bilingual/multilingual case.

中文翻译：

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使用家长报告测量幼儿双语儿童的词汇量：范围界定审查

许多儿童接触不止一种语言。评估单语儿童早期词汇发展的一种行之有效的方法是家长报告。然而，它在双语/多语言环境中的使用还不太成熟，并且带来了独特的挑战。在这篇方法论范围审查中，我们回顾了使用双语/多语言儿童家长报告（1980 年 1 月至 2022 年 3 月）进行的早期词汇发展研究。总共筛选了 576 篇文章，产生 101 项研究进行分析。过去二十年来，双语/多语词汇研究的数量不断增加；然而，世界语言的代表性仍然很少。大多数研究评估了双语/多语儿童每种语言的词汇量，并使用适合语言和文化特征的工具。然而，该领域可以受益于有关双语/多语定义、报告者选择和工具开发的标准化报告实践，并且迫切需要专门针对双语/多语案例开发、验证和规范家长报告工具的研究。