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Audun Rosslund; Natalia Kartushina; Nora Serres; Julien Mayor – Child Development, 2025
Growing up with multiple siblings might negatively affect language development. This study examined the associations between birth order, sibling characteristics and parent-reported vocabulary size in 6163 Norwegian 8- to 36-month-old children (51.4% female). Results confirmed that birth order was negatively associated with vocabulary, yet…
Descriptors: Family Size, Birth Order, Siblings, Infants
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Sarah C. Creel – Child Development, 2025
How does one assess developmental change when the measures themselves change with development? Most developmental studies of word learning use either looking (infants) or pointing (preschoolers and older). With little empirical evidence of the relationship between the two measures, developmental change is difficult to assess. This paper analyzes…
Descriptors: Preschool Children, Vocabulary Development, Language Acquisition, Accuracy
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Jennie Cusiter; Kate Short; Annabel Webb; Natalie Munro – Child Development, 2025
This meta-analytic review explored the characteristics and effectiveness of combined language (e.g., vocabulary) and code (e.g., phonological awareness) interventions, including synergistic intervention effects for at-risk preschoolers. Data from 29 randomized controlled trials, published before March 2023, reporting on 43 interventions, including…
Descriptors: Emergent Literacy, Meta Analysis, At Risk Students, Preschool Children