This longitudinal study investigates metacognitive development in children aged four to six (N = 148; 74 girls; 106 White, 21 multiracial, 17 Black, 3 Asian, 1 Latino; collected in 2017-2019) compared to adults (N = 26, 13 women; collected in 2022). We assessed metacognitive monitoring and control using experimenter-elicited and self-generated…

Nearly half of children in China were affected by migration, and more than one-third of rural children had been left at home, classified as rural left-behind children (LBC). Despite numerous studies on migration and LBC, little research has investigated the issues of LBC by connecting their development with family features. This study aimed to…

Childhood adversity can lead to cognitive deficits or enhancements, depending on many factors. Though progress has been made, two challenges prevent us from integrating and better understanding these patterns. First, studies commonly use and interpret raw performance differences, such as response times, which conflate different stages of cognitive…

Recently, several studies have suggested that metacognition emerges early in infancy and toddlerhood. However, to date, the developmental trajectory of these early metacognitive monitoring and control processes and their influence on children's later memory functioning remains poorly understood. The aim of this study was to longitudinally document…

The standard view on Theory of Mind (ToM) is that the mastery of the false belief (FB) task around age 4 marks the ontogenetic emergence of full-fledged meta-representational ToM. Recently, a puzzling finding has emerged: Once children master the FB task, they begin to fail true belief (TB) control tasks. This finding threatens the validity of FB…

Data on attaining indicators of early speech, language, and literacy development, notably phonological awareness, among children with visual impairments (VI) are limited. This U.S. study utilized the "National Survey of Children's Health" (NSCH), 2016-2020, to observe the distinctive population of children with VI and speech, language,…

How do children reason about academic performance across development? A classic view suggests children's intuitive theories in this domain undergo qualitative changes. According to this view, older children and adults consider both effort and skill as sources of performance (i.e., a "performance = effort + skill" theory), but younger…

This study investigated developmental differences in metacognitive monitoring and control in younger (5- to 6-year-old) and older (8- to 10-year-old) children's prospective memory (PM). Metacognitive monitoring was assessed by asking the children to judge their performance before (prediction) and after (postdiction) performing a resource-demanding…

This study examined how timing (i.e., relative maturity) and rate (i.e., how quickly infants attain proficiency) of A-not-B performance were related to changes in brain activity from age 6 to 12 months. A-not-B performance and resting EEG (electroencephalography) were measured monthly from age 6 to 12 months in 28 infants and were modeled using…

This study investigated the Infant Behavior Record (IBR) as an observer-rated measure of temperament. The aim was to determine whether the IBR and a parent-rated measure of temperament were comparably associated with children's performance on laboratory tasks and with a measure of the home environment. We found several significant associations…

The "bouba-kiki effect" refers to the correspondence between arbitrary visual and auditory stimuli. Previous studies have demonstrated that neurodevelopmental conditions and sensory impairment affect subjects' performance on the bouba-kiki task. This study examined the bouba-kiki effect in participants with severe-to-profound hearing…

Purpose: Language is related to false-belief (FB) understanding in both typically developing children and children with autism spectrum disorder (ASD). The current study examined the role of complementation and general language in FB understanding. Of interest was whether language plays similar or different roles in the groups' FB performance.…

This study investigated whether children can infer category properties based on how a speaker describes an individual (e.g., saying something is a "small zib" implies that zibs are generally bigger than this one). Three- to 5-year-olds (N = 264) from a university preschool and a children's museum were tested on their ability to make this…

This article investigates how children leverage intonational and gestural cues to an individual's belief state through unimodal (intonation-only or facial gesture-only) and multimodal (intonation + facial gesture) cues. A total of 187 preschoolers (ages 3-5) participated in a disbelief comprehension task and were assessed for Theory of Mind (ToM)…

The Department of Children, Youth and Families (DCYF) is the State Lead Agency for the Individuals with Disabilities Education Act (IDEA) Part C program for Washington State. Within DCFY, the Part C programmatic home is the Early Support for Infants and Toddlers (ESIT) program. During Federal Fiscal Year (FFY) 2017 (July 1, 2017-June 30, 2018),…