In children with a hearing loss who receive cochlear implants (CIs) under the age of 2, regular assessments are conducted to monitor auditory and linguistic progress. However, the collection of authentic, representative, and reliable expressive language data on young children with CIs remains a challenge. The purpose of the study was to determine whether data from parental report, language diary, and spontaneous language sample are equally representative of the development of expressive vocabulary over the first 12 months of CI use. Nine French-speaking children and their families participated in the study. We collected data at 3, 6, 9, and 12 months post-implantation, and we measured parental satisfaction regarding the use of a language diary. All three methods showed a progression in the total number of different words expressed over time and captured grammatical diversity. The findings suggest that when vocabulary size is still small, the diary might provide a more comprehensive picture of development than a vocabulary checklist.

中文翻译：

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人工耳蜗儿童早期词汇：三种评估方法的比较

对于 2 岁以下接受人工耳蜗 (CI) 的听力损失儿童，会进行定期评估以监测听觉和语言进展。然而，收集关于 CI 幼儿的真实、有代表性和可靠的表达语言数据仍然是一个挑战。该研究的目的是确定来自父母报告、语言日记和自发语言样本的数据是否同样代表了在 CI 使用的前 12 个月内表达性词汇的发展。九名讲法语的儿童及其家人参与了这项研究。我们在植入后 3、6、9 和 12 个月收集了数据，并测量了父母对语言日记使用的满意度。所有三种方法都显示出随着时间的推移表达的不同单词总数的进步，并捕捉到了语法多样性。研究结果表明，当词汇量仍然很小时，日记可能比词汇清单提供更全面的发展图景。