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Kachergis, George; Marchman, Virginia A.; Dale, Philip S.; Mankewitz, Jessica; Frank, Michael C. – Journal of Speech, Language, and Hearing Research, 2022
Purpose: Measuring the growth of young children's vocabulary is important for researchers seeking to understand language learning as well as for clinicians aiming to identify early deficits. The MacArthur-Bates Communicative Development Inventories (CDIs) are parent report instruments that offer a reliable and valid method for measuring early…
Descriptors: Computer Assisted Testing, Vocabulary Development, English, Spanish
Dale, Philip S.; von Stumm, Sophie; Selzam, Saskia; Hayiou-Thomas, Marianna E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: The ability to identify children early in development who are at substantial risk for language/literacy difficulties would have great benefit both for the children and for the educational and therapeutic institutions that serve them. Information that is relatively easily available prior to the age of 3 years, such as late talking, family…
Descriptors: Genetics, Scores, Risk, Prediction
Bleses, Dorthe; Vach, Werner; Dale, Philip S. – Journal of Child Language, 2018
Vocabulary input frequency influences age of acquisition, and is also an essential control for investigating the influence of other factors. We propose a new method of frequency estimation, self-report. 918 Danish-speaking parents of 12-36-month-old children estimated their frequency of use of 725 words. Self-report was substantially correlated…
Descriptors: Vocabulary Development, Linguistic Input, Indo European Languages, Parent Child Relationship
Makransky, Guido; Dale, Philip S.; Havmose, Philip; Bleses, Dorthe – Journal of Speech, Language, and Hearing Research, 2016
Purpose: This study investigated the feasibility and potential validity of an item response theory (IRT)-based computerized adaptive testing (CAT) version of the MacArthur-Bates Communicative Development Inventory: Words & Sentences (CDI:WS; Fenson et al., 2007) vocabulary checklist, with the objective of reducing length while maintaining…
Descriptors: Item Response Theory, Computer Assisted Testing, Adaptive Testing, Language Tests