Division of Speech and Language Pathology,Karolinska Institutet,Stockholm,Sweden.
Department of Linguistics,Stockholm Universitet,Stockholm,Sweden.
J Child Lang. 2019 Mar;46(2):199-213. doi: 10.1017/S0305000918000363. Epub 2018 Oct 23.
This study aimed to investigate concerns of validity and reliability in subjective ratings of age-of-acquisition (AoA), through exploring characteristics of the individual rater. An additional aim was to validate the obtained AoA ratings against two corpora - one of child speech and one of adult speech - specifically exploring whether words over-represented in the child-speech corpus are rated with lower AoA than words characteristic of the adult-speech corpus. The results show that less than one-third of participating informants' ratings are valid and reliable. However, individuals with high familiarity with preschool-aged children provide more valid and reliable ratings, compared to individuals who do not work with or have children of their own. The results further show a significant, age-adjacent difference in rated AoA for words from the two different corpora, thus strengthening their validity. The study provides AoA data, of high specificity, for 100 child-specific and 100 adult-specific Swedish words.
本研究旨在通过探究个体评估者的特征，调查在主观年龄获得（AoA）评估中有效性和可靠性的关注点。另一个目的是通过两个语料库——一个是儿童言语语料库，一个是成人言语语料库——验证获得的 AoA 评分，具体探讨在儿童言语语料库中过度出现的单词是否比成人言语语料库中典型的单词具有更低的 AoA。结果表明，不到三分之一的参与者的评分是有效和可靠的。然而，与不与学龄前儿童一起工作或没有自己孩子的人相比，对学龄前儿童非常熟悉的个体提供了更有效和可靠的评分。结果进一步表明，来自两个不同语料库的单词的评分 AoA 存在显著的年龄相近差异，从而增强了它们的有效性。该研究为 100 个特定于儿童的瑞典单词和 100 个特定于成人的瑞典单词提供了特异性高的 AoA 数据。
