ABSTRACT By the preschool age, children exhibit a diversity of prosocial behaviors that include both sharing resources and helping others. Though recent work has theorized that these prosocial behaviors are differentiated by distinct ages of emergence, developmental trajectories and underlying mechanisms, the experimental evidence in support of the last claim remains scant. The current study focuses on one such cognitive mechanism – numerical cognition – seeking to replicate and extend prior work demonstrating the strong link between children’s numerical cognition and precise sharing behavior, and further examining its relationship to instrumental helping. In line with theoretical perspectives favoring the differentiation of varieties of prosocial behaviors, we hypothesize that numerical cognition underlies precise sharing, but not precise helping behavior. Eighty-five 3 to 6-year-old children completed two procedurally similar tasks designed to elicit sharing and instrumental helping behavior, in addition to a Give-N task measuring their symbolic counting skills. Despite the procedural similarity, and the implicit norm of providing half (5 out of 10) stickers in both tasks, children’s counting proficiency predicted precise sharing, but not precise helping. These results indicate a unique relationship between children’s developing numerical cognition and behavioral fairness, providing empirical support for claims that varieties of prosocial behavior are supported by distinct underlying mechanisms.

ABSTRACT A growing body of research has found a relationship between parenting and the development of executive function in young children ; however, fewer studies have examined how parenting is related specifically to the development of working memory. Using data from the Family Life Project, this study examined whether attention was a pathway through which parenting predicted working memory. A total of 1,292 children were followed from birth to 36 months. Parenting was measured at 6, 15, 24 and 36 months. Children’s attentional focusing and attentional shifting were measured at 24 months, and verbal working memory at 36 months. Sensitive, autonomy supportive and cognitive stimulating parenting at 6 months predicted better attentional shifting at 24 months, which, in turn, predicted greater working memory at 36 months. Sensitive, autonomy supportive and cognitive stimulating parenting at 15 months predicted greater working memory at 36 months. This study provided evidence that attentional shifting is a link for the association between parenting and working memory.

ABSTRACT Remembering to carry out intended actions in the future, known as prospective memory (PM), is an important cognitive ability. In daily life, individuals remember to perform future tasks that might rely on effortful processes (monitoring) but also habitual tasks that might rely on more automatic processes. The development of PM across childhood in laboratory contexts is well understood, but little is known about the social context in which children develop their PM skills in everyday life. In the current study, three hundred and one parents reported on their 3-to 11-year-old child’s PM, child’s strategy use, and on their own scaffolding of their child’s PM using the Children’s Everyday Memory Questionnaire (CEMQ; adapted from the Prospective Memory Questionnaire). Preliminary analyses showed that the PM items on the CEMQ were reliable and composed of two components (a PM and a PM strategy use subscale). Our results showed that children’s PM and use of memory strategies, as reported by their parents, increased with age. Further, more frequent parent scaffolding was related to better PM in children. These relations were also explored separately for older and younger children. Notably, parents of younger, 3-to 6-year-olds reported scaffolding them more frequently with age, while parents of older, 7-to 11-year-olds reported scaffolding them less frequently with age. Open-ended responses revealed that parents used verbal reminders and children used external aids most frequently. Overall, parent scaffolding appears to impact children’s PM, but future research is needed to identify the causal direction of these relations.

ABSTRACT In contrast to research that examines the effects of socioeconomic status (SES) and bilingualism on development by comparing clearly disparate groups, the present study investigated the role of subtle differences in these experiences for their joint impact on performance on a verbal fluency task and an executive function (EF) task. The study involved 234 6-year-old children who were assessed for nonverbal intelligence and English vocabulary; parents completed a questionnaire providing demographic information and details about children’s language experiences. Children were assigned continuous scores for SES based on parents’ education and for bilingualism based on experience with non-English languages. Both continuous scores were normally distributed, so median split calculations created binary groups indicating relative levels of SES (high vs. middle) and bilingualism (more monolingual vs. more bilingual). For verbal fluency, there were no group differences in semantic fluency but phonological fluency was performed better by children from higher SES backgrounds, both in between-group and continuous analyses. For EF, the between-group analysis revealed an interaction in which bilingual children in the higher SES group outperformed all other children; nonetheless, a positive relation between degree of bilingualism and EF was significant across the whole sample. Thus, both SES and bilingualism affected language and cognitive development with limiting conditions for each experience. The discussion considers the effect of these subtle differences in SES and bilingual experience on development of essential cognitive abilities, the relation between these results and previous research, and the importance of how groups are defined in research addressing individual differences.

ABSTRACT The present study had two aims. First, we set out to evaluate the structure of processing speed in children by comparing five alternative models: two conceptual models (a unitary model, a complexity model) and three methodological models (a stimulus material model, an output response model, and a timing modality model). Second, we then used the resulting models to predict multiple types of reading, a highly important developmental outcome, using other well-known predictors as covariates. Participants were 844 children enrolled in third through fifth grade in urban public elementary schools who received 16 measures of processing speed that varied in the above dimensions. A two-factor complexity model that differentiated between simple and complex processing speed was the preferred model and fit the data well. Both types of PS predicted reading fluency, and complex (but not simple) PS predicted single word reading and comprehension. Results offer insight to the structure of processing speed, its relation to closely related concepts (such as executive function), and provide nuance to the understanding of the way processing speed influences reading.

ABSTRACT Temperamental effortful control (EC) and executive functions (EF) are two frameworks for studying self-regulation in children. Despite stemming from different research traditions, they show many conceptual and theoretical similarities and their corresponding tasks are often used interchangeably. However, little is known about how and whether the two constructs can be distinguished empirically. The present study aimed to contribute to the investigation of this issue. A sample of 230 preschool children aged 4–6 years were tested with two common behavioral EC tasks and an EC questionnaire. Furthermore, the assessment included common measures of the three subcomponents of EF, namely inhibition, working memory, and shifting. Data were analyzed using correlational and confirmatory factor analyses. In accordance with our hypotheses, we found significant positive correlations between most EC and EF measures, and a single factor model, in which all EC and EF tasks loaded significantly on the underlying factor, was supported by our results. Moreover, this latent construct generalized across gender and age. These findings show that the variety of common EC and EF tasks used in this study all seem to tap similar aspects of self-regulation and therefore support an integrated model of self-regulation encompassing EC and EF. Our results are further considered to be informative for future research using different EC and EF tasks.

ABSTRACT The Test of Emotion Comprehension (TEC) has been used extensively to investigate children’s understanding of emotion. The present study aimed at investigating the TEC’s factorial structure, its measurement invariance across age and gender, and defining age-referred TEC scores, in a large sample of 1,478 children (755 males, 723 females) aged between 3 and 10 years. Confirmatory factor analysis of the data yielded support for the original psychometric structure of the TEC, which is based on three developmental domains of emotion understanding: external, mental, and reflective. Measurement equivalence was supported across age and gender groups. We also obtained normative data for interpreting TEC outcomes and defined the corresponding normative pattern of development across six-month age intervals. Overall, our findings suggest that the TEC is a robust instrument for investigating emotion understanding in children aged 3 to 10 years. The limitations of the study and the potential use of the TEC are discussed.

ABSTRACTWe examine the contributions of the environmental context on cognitive development in a representative sample of children (24–59 month-olds) in Nicaragua. Multivariate regression models revealed that children who experienced high levels of structure in the home, encountered more social interaction, and were enrolled in early education programs, exhibited higher cognitive skills. These factors were related to, but better accounted for, variability in children’s skills than the socio-economic endowment of the home or maternal education levels – the two most commonly used proxies to quantify children’s early contexts. Results from this study provide validation of the relation between children’s proximal early social environment and cognitive outcomes in a novel context. The results also provide motivation for deeper empirical investigation in the specific aspects of the home environment that may be central to providing resilience to low wealth populations, and to reducing inequality in developmental skills.

ABSTRACTStarting in the preschool years, children show socially exclusive behaviors, such as intentionally leaving out another child from a ball game. Prior research investigating social exclusion understanding in preschoolers primarily used interview methods and it is clear that the verbal and cognitive skills necessary to identify and reason about social exclusion become more sophisticated with age. Yet it is unknown how children’s ability to identify social exclusion relates to their own behavior, such as their social preference for socially inclusive or exclusive individuals. Further, whether such social preferences remain stable or change across development is an open question. Thus, the current study investigated whether the ability to identify social exclusion develops in tandem with social preference behavior by assessing 3- to 6-year-old children’s (N = 256) identification of social exclusion and preferences between socially exclusive and inclusive agents. Five- to six-year-old children correctly identified social exclusion and preferred inclusive agents over exclusive agents across two experiments. Three- to four-year-old children could correctly identify social exclusion, but did not show evidence of a preference for inclusive agents over exclusive agents. Children were also able to detect implicit, nonverbalized social exclusion equally well as explicit, verbalized social exclusion across development. These findings suggest that young children’s social preferences are not wholly dictated by their ability to identify socially exclusive agents. This divergent pattern of social preference from identification has implications for interpreting social preference behavior in young children.

ABSTRACTThe early use of person perception terms was examined via an analysis of the spontaneous speech of four young children in conversation with their parents at home. All four children were producing such terms early in their third year. Like their parents, children used the terms in two distinguishable ways: to attribute a trait to a person or to characterize a person’s ongoing action. Most of these terms were evaluative, whether positive or negative. Parents often made direct comments to their children about both their traits and ongoing actions; children made similar comments about themselves. Parents also used person perception terms to make comments about others who were not party to the conversation; children did likewise. A considerable proportion of the trait terms that children produced served as interpretive comments on someone’s actions or preferences. Our findings suggest that from an early age, children are trait theorists. Not only do they describe ongoing actions using trait vocabulary, they interpret those ongoing actions by attributing traits.