Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia.
School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, Australia.
Clin Linguist Phon. 2024 Jul 2;38(7):676-691. doi: 10.1080/02699206.2023.2236768. Epub 2023 Jul 21.
To explore the clinical potential of grammaticality judgement tasks, this study investigated whether a Grammaticality Judgment Task (GJT) of inflectional morphology could differentiate between a clinically selected sample of children with DLD and children in mainstream (i.e. regular education) schools. We also explored the relationship between grammaticality judgement and measures of receptive vocabulary, receptive grammar, and nonword repetition. Children with DLD ( = 30; age range = 69-80 months) and mainstream children in Pre-primary, Year 1, and Year 2 ( 89, age range = 61-96 months) were assessed on a GJT of regular past tense, third person singular, and possessive . The GJT was sensitive to developmental differences in mainstream children and differentiated children with DLD from Year 1 and 2 mainstream children, with DLD results consistent with a one-year delay in performance compared to controls. The GJT was the strongest discriminator of membership to a clinically selected sample of children with DLD (ROC curve analysis, area under the curve = 88%). Receptive grammar, receptive vocabulary, and nonword repetition were related to performance on the GJT. The grammaticality judgement of inflectional morphology shows promise as a reliable indicator of DLD and a measure sensitive to developmental differences in mainstream children. GJTs should continue to be explored for clinical application as a potential tool for both assessment and intervention.
为了探索语法判断任务的临床应用潜力，本研究调查了词形变化的语法判断任务（GJT）是否能够区分临床选择的语言发育迟缓儿童样本和主流（即常规教育）学校的儿童。我们还探讨了语法判断与接受性词汇、接受性语法和无意义词重复测量之间的关系。对语言发育迟缓儿童（n=30；年龄范围 69-80 个月）和学前、1 年级和 2 年级的主流儿童（n=89，年龄范围 61-96 个月）进行了常规过去时、第三人称单数和所有格的 GJT 评估。GJT 对主流儿童的发展差异敏感，能够区分语言发育迟缓儿童与 1 年级和 2 年级的主流儿童，语言发育迟缓儿童的结果与表现相比对照组延迟了一年。GJT 是区分临床选择的语言发育迟缓儿童样本的最强判别器（ROC 曲线分析，曲线下面积 = 88%）。接受性语法、接受性词汇和无意义词重复与 GJT 的表现相关。词形变化的语法判断显示出作为语言发育迟缓的可靠指标和对主流儿童发展差异敏感的测量方法的潜力。GJT 应该继续作为一种潜在的评估和干预工具，在临床应用中进行探索。
