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Direct linkPlate, Samantha; Yankowitz, Lisa; Resorla, Leslie; Swanson, Meghan R.; Meera, Shoba Sreenath; Estes, Annette; Marrus, Natasha; Cola, Meredith; Petrulla, Victoria; Faggen, Aubrey; Pandey, Juhi; Paterson, Sarah; Pruett, John R., Jr.; Hazlett, Heather; Dager, Stephen; St. John, Tanya; Botteron, Kelly; Zwaigenbaum, Lonnie; Piven, Joseph; Schultz, Robert T.; Parish-Morris, Julia – Child Development, 2022
Infant vocalizations are early-emerging communicative markers shown to be atypical in autism spectrum disorder (ASD), but few longitudinal, prospective studies exist. In this study, 23,850 infant vocalizations from infants at low (LR)- and high (HR)-risk for ASD (HR-ASD = 23, female = 3; HR-Neg = 35, female = 13; LR = 32, female = 10; 80% White;…
Descriptors: Infants, Toddlers, Verbal Communication, Autism
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
Clément François; Antoni Rodriguez-Fornells; Xim Cerda-Company; Thaïs Agut; Laura Bosch – Child Development, 2025
Little is known about language development after late-to-moderate premature birth, the most significant part of prematurity worldwide. We examined minimal-pair word-learning skills in 18 eighteen-month-old healthy full-term (mean gestational age [GA] at birth = 39.6 weeks; 7 males; 100% Caucasian) and 18 healthy late-to-moderate preterm infants…
Descriptors: Foreign Countries, Language Acquisition, Toddlers, Premature Infants
Eileen F. Sullivan; Ran Wei; Shahria Kakon; Talat Shama; Fahmida Tofail; William A. Petri; Rashidul Haque; Charles A. Nelson III – Child Development, 2025
Identifying the neural processes that underlie the association between children's early adverse experiences and cognitive development could inform more effective intervention strategies. The goal of the current study (data collected 2015-2021) was to examine relations among early experiences at 6 months, electroencephalography (EEG) theta power at…
Descriptors: Trauma, Child Development, Cognitive Development, Intervention
Zwaigenbaum, Lonnie; Bryson, Susan E.; Brian, Jessica; Smith, Isabel M.; Sacrey, Lori; Armstrong, Vickie; Roberts, Wendy; Szatmari, Peter; Garon, Nancy; Vaillancourt, Tracy; Roncadin, Caroline – Child Development, 2021
The objectives were to characterize behavioral signs of autism spectrum disorder (ASD) in younger siblings of diagnosed children (high-risk; HR) and examine classification features of the Autism Observation Scale for Infants (AOSI). Participants (501 HR and 180 low-risk [LR]) were assessed between 6 and 18 months using the AOSI and at age 3 for…
Descriptors: Autism, Pervasive Developmental Disorders, Symptoms (Individual Disorders), Infant Behavior
Kucker, Sarah C.; Braun, Blair E.; Markham-Anderson, Jessica F. – Child Development, 2023
Children's ability to recognize object shape is foundational for successful early word learning. However, the prototypical shape of objects may not be easily accessible--take margarita glasses, for instance. The current study examined 304 U.S. children 17- to 42-month-old (152 females) from 2017 to 2020, asking how shape, age, and vocabulary…
Descriptors: Vocabulary Development, Infants, Toddlers, Physical Characteristics
Weatherhead, Drew; Kandhadai, Padmapriya; Hall, D. Geoffrey; Werker, Janet F. – Child Development, 2021
Previous work indicates mutual exclusivity in word learning in monolingual, but not bilingual toddlers. We asked whether this difference indicates distinct conceptual biases, or instead reflects best-guess heuristic use in the absence of context. We altered word-learning contexts by manipulating whether a familiar- or unfamiliar-race speaker…
Descriptors: Bilingualism, Infants, Vocabulary Development, Toddlers
Jiménez, Eva; Hills, Thomas T. – Child Development, 2022
This study investigates the influence of semantic maturation on early lexical development by examining the impact of contextual diversity--known to influence semantic development--on word promotion from receptive to productive vocabularies (i.e., comprehension-expression gap). Study 1 compares the vocabularies of 3685 American-English-speaking…
Descriptors: Semantics, Language Acquisition, Child Development, Delayed Speech
Dowdall, Nicholas; Murray, Lynne; Skeen, Sarah; Marlow, Marguerite; De Pascalis, Leonardo; Gardner, Frances; Tomlinson, Mark; Cooper, Peter J. – Child Development, 2021
This study evaluated the impact of a parenting intervention on children's cognitive and socioemotional development in a group of caregivers and their 21-to-28-month-old children in a low-income South African township. A randomized controlled trial compared an experimental group (n = 70) receiving training in dialogic book-sharing (8 weekly group…
Descriptors: Reading Aloud to Others, Books, Parenting Skills, Intervention
Bergmann, Christina; Tsuji, Sho; Piccinini, Page E.; Lewis, Molly L.; Braginsky, Mika; Frank, Michael C.; Cristia, Alejandrina – Child Development, 2018
Previous work suggests that key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = 0.45 and…
Descriptors: Language Acquisition, Meta Analysis, Effect Size, Child Development
McClure, Elisabeth R.; Chentsova-Dutton, Yulia E.; Holochwost, Steven J.; Parrott, W. G.; Barr, Rachel – Child Development, 2018
Although many relatives use video chat to keep in touch with toddlers, key features of adult-toddler interaction like joint visual attention (JVA) may be compromised in this context. In this study, 25 families with a child between 6 and 24 months were observed using video chat at home with geographically separated grandparents. We define two types…
Descriptors: Infants, Toddlers, Child Development, Social Development
Burling, Joseph M.; Yoshida, Hanako – Child Development, 2019
Manual skills slowly develop throughout infancy and have been shown to create clear views of objects that provide better support for visually sustained attention, recognition, memory, and learning. These clear views may coincide with the development of manual skills, or that social scaffolding supports clear viewing experiences like those…
Descriptors: Psychomotor Skills, Infants, Skill Development, Attention Control
Gangi, Devon N.; Boterberg, Sofie; Schwichtenberg, Amy J.; Solis, Erika; Young, Gregory S.; Iosif, Ana-Maria; Ozonoff, Sally – Child Development, 2021
Two independent cohorts (N = 155, N = 126) of infants at high and low risk for autism spectrum disorder (ASD) were followed prospectively between 6 and 36 months of age, when n = 46 were diagnosed with ASD. Gaze to adult faces was coded--during a developmental assessment (Cohort 1) or a play interaction (Cohort 2). Across both cohorts, most…
Descriptors: Autism, Pervasive Developmental Disorders, Early Intervention, Symptoms (Individual Disorders)
Bratsch-Hines, Mary E.; Carr, Robert; Zgourou, Eleni; Vernon-Feagans, Lynne; Willoughby, Michael – Child Development, 2020
This study considered the quality and stability of infant and toddler nonparental child care from 6 to 36 months in relation to language, social, and academic skills measured proximally at 36 months and distally at kindergarten. "Quality" was measured separately as caregiver-child verbal interactions and caregiver sensitivity, and…
Descriptors: Infants, Toddlers, Child Care, Educational Quality
Sperry, Douglas E.; Sperry, Linda L.; Miller, Peggy J. – Child Development, 2019
Amid growing controversy about the oft-cited "30-million-word gap," this investigation uses language data from five American communities across the socioeconomic spectrum to test, for the first time, Hart and Risley's (1995) claim that poor children hear 30 million fewer words than their middle-class counterparts during the early years…
Descriptors: Socioeconomic Status, Vocabulary Development, Infants, Toddlers
