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The study of infant gaze has long been a key tool for understanding the developing mind. However, labor-intensive data collection and processing limit the speed at which this understanding can be advanced. Here, we demonstrate an asynchronous workflow for conducting violation-of-expectation (VoE) experiments, which is fully "hands-off" for the experimenter. We first replicate four classic VoE experiments in a synchronous online setting, and show that VoE can generate highly replicable effects through remote testing. We then confirm the accuracy of a state-of-the-art gaze annotation software, iCatcher+ in a new setting. Third, we train parents to control the experiment flow based on the infant's gaze. Combining all three innovations, we then conduct an asynchronous automated infant-contingent VoE experiment. The hands-off workflow successfully replicates a classic VoE effect: infants look longer at inefficient actions than efficient ones. We compare the resulting effect size and statistical power to the same study run in-lab and synchronously via Zoom. The hands-off workflow significantly reduces the marginal cost and time per participant, enabling larger sample sizes. By enhancing the reproducibility and robustness of findings relying on infant looking, this workflow could help support a cumulative science of infant cognition. Tools to implement the workflow are openly available.

Background: As delays or disorders in early language and communication are the most prevalent symptom in children with disabilities, early screening is crucial to promote prevention, early diagnosis, and intervention. However, to the best of our knowledge, no screening tool is available for the joint assessment of early language and social communication skills in European Portuguese (EP)-learning children, which is critical for screening, monitoring and enrolment in appropriate early intervention services. Aims: (1) To adapt and validate the EP version of the Communication and Symbolic Behaviour Scales Developmental Profile™ (CSBS DP™) Infant-Toddler Checklist, a parental report for the screening of early language and social communication skills. (2) To conduct a cross-cultural comparison between the EP adaptation and the original US version. Methods & Procedures: A total of 611 EP-learning children (ages 6-24 months) were assessed on the CSBS DP Infant-Toddler Checklist. Normative data, psychometric characteristics (i.e., internal consistency and test-retest reliability), and cross-cultural comparison between the EP and the original version were explored. Outcomes & Results: Internal consistency ranged from good to excellent and the test-retest reliability was excellent. The performance of the EP and US samples matched on almost all scores. However, EP children performed significantly better than their American peers in the Social compositive at 22 months and in the Symbolic composite at 20 months. No further differences were found. Conclusions & Implications: These findings showed that the EP CSBS DP Infant-Toddler Checklist seems to be a reliable screening tool of communicative and symbolic behaviours for EP-learning children, which can be particularly relevant for decision-making in clinical practice.

The socio-emotional experiences of infants during transitions to early childhood education and care (ECEC) and across their first year in these out-of-home contexts are not well known. In an international project across five countries (New Zealand, Finland, Australia, Scotland and the United States), observational data, video of key moments, plus re-probing interviews with parents and teachers concerning 10 infants (six females) aged 5-13 months were collected across the first year of ECEC. An embedded case study design was used to analyse infant experiences from both quantitative and qualitative perspectives. Findings indicated low positive affect on infants' first day of ECEC that increased after the first week and throughout the first year of ECEC. Drop-off periods remained a time of negative emotionality for the first month of ECEC. Over time more positive emotional experiences were evident, with peer interactions fostering positive affect, activeness and involvement, while one-on-one interactions with teachers were an important context for interpersonal engagement and well-being. These findings shed light on the highly charged emotional experience for infants when they transition to institutional care, and how these might be ameliorated in practice.

Speech problems affect about 66% of children with classic galactosemia (CG), but limited evidence is reported on early motor and sensory motor development in this at-risk population. Research has been focused on speech and language development, leaving a paucity of data on motor and sensory differences. This paper describes preliminary data regarding sensory motor and motor development patterns in young children with CG. Babble Boot Camp© (BBC) is an NIH-funded randomized control trial (RCT) implementing proactive interventions designed to support the speech language development of infants with CG. Cases were randomly assigned to a motor-first group (Motor Milestones), receiving virtual occupational therapy through 14 months, or a speech-first group, receiving virtual speech therapy through 14 months. All cases received speech and language therapy from 15 to 24 months. Controls, typically developing infants, did not receive occupational therapy or speech therapy. Participants were recruited through social media, advertisements, metabolic clinics, and the Galactosemia Foundation. Infants in the motor milestones group were assessed with the Developmental Assessment of Young Children and Sensory Profile-2 pre-enrollment (<6 months of age) and post-treatment follow-up at 2.5, 3.5, and 4.5 years of age. Results show that 17.5% of participants with CG had delays in gross motor, 22.5% in fine motor, and 45% in sensory processing. Data from the Motor Milestones portion of BBC are important emerging evidence for occupational therapy in early intervention, preschool, and outpatient settings. This research supports the need for occupational therapy services during early intervention to minimize or prevent long-term motor and sensorimotor delays in infants with CG. Understanding patterns and addressing literature gaps helps support the need for occupational therapists to address motor delays, improve activities of daily living, play, promote functional independence, and provide caregiver education to best support the occupational performance of children with CG.

Infant and toddler pedagogy has flourished as a specialized area of practice in early childhood care and education settings, yet it remains an under-researched area. There is also limited empirical research internationally that explores cultural meanings of meaningful provision for this young age group. This ethnographic study explored pedagogies of care with 1-year olds in four cultures--England, United States, New Zealand and Hong Kong--guided by Froebel's education philosophy and a view of pedagogies of care as embodiments of culture. The researchers employed sociocultural and ecological theoretical perspectives (Darling, 2016) to attend to cultural meanings at the micro, macro and temporal levels in relation to people, contexts and processes. This lens enabled the researchers to resist the positivist tendency to normalize and unify all children's experiences and maintain the integrity of diverse interpretations. Inspired by Tobin et al.'s (1989, 2009) cross-national research on preschool in three cultures, the researchers utilized a video-cued multivocal and layered interpretation approach to elicit the "voices" of 1-year-olds, their teachers/practitioners and families. This paper focuses on each researcher's discussion of the ways Froebel's principles of "autonomy in learning" and "freedom with guidance" were seen to unfold. The nuances of how these principles were manifested in pedagogies for infants and toddlers is explored in relation to each country's curriculum and cultural ideals.

Can well-documented gender differences in evaluations of prosocial versus antisocial actions found in childhood and adulthood be traced to sex differences in basic sociomoral preferences in infancy? We provide an answer to this question by meta-analyzing sex differences in preference for prosocial over antisocial agents in a set of 53 samples of American and European infants and toddlers aged between 4 and 32 months (N = 1,094). Although the original studies were agnostic to sex differences, we were able to retrieve the original data sets and estimate the effect of infants' and toddlers' sex on sociomoral preferences. Employing both a standard frequentist and a Bayesian approach to meta-analysis, we found strong evidence supporting the absence of sex differences in sociomoral preferences among infants and toddlers. We discuss the relevance of this finding for theories and descriptions of the emergence and developmental trajectory of gender differences in morality.

In order for children to understand and reason about the world in an adult-like fashion, they need to learn that conceptual categories are organized in a hierarchical fashion (e.g., a dog is also an animal). While children learn from their first-hand observation of the world, social knowledge transmission via language can also play an important role in this learning. Previous studies have documented several cues in parental talk that can help children learn about conceptual hierarchy. However, these studies have used different datasets and methods that have made it difficult to compare the relative usefulness of various linguistic cues to conceptual knowledge and to test whether they scale up to naturalistic speech. Here, we study a large-scale corpus of English child-directed speech -- collected in North America and the UK -- and used a unified classification-based evaluation method which allowed us to investigate and compare cues that vary in terms of how explicit the information they offer is. We found the more explicit cues to be too sparse or too noisy in child-directed speech, making them unlikely to support robust learning. In contrast, the implicit cues offered a more reliable source of information. Further, we investigated developmental changes from 3 to 6 years of age, and we found no differences in the availability of these cues in the input. Our work confirms the utility of caregiver talk for conveying conceptual information and supporting the development of early taxonomic knowledge. It provides a first step toward a cognitive model that would combine perceptual- and language-based mechanisms, leading to a more comprehensive account of children's conceptual development.

In this article, Ajay Chaudry and Heather Sandstrom review research on child care and early education for children under age three. They describe the array of early care and education arrangements families use for infants and toddlers; how these patterns have changed in recent decades; and differences by family socioeconomic status, race, and ethnicity. Chaudry and Sandstrom note that families face many challenges both in getting access to child care and in finding care of more than mediocre quality. These challenges include limited supply and limited affordability relative to the needs of working parents and those pursuing education. Other challenges are based on families' and children's circumstances; for example, parents may work nontraditional or variable hours, or children may have special developmental needs. Although experts agree that the quality of children's care is important for their learning and development, the authors write, there is no consensus on how to best measure quality and what factors are most important. They review what we know about the quality of infant and toddler child care in the United States, why child care quality matters for children's learning and development, and how the federal government as well as the states are trying to improve child care quality. Chaudry and Sandstrom also examine the major public programs that support early care and education, primarily for children in low-income families--child care subsidies, tax credits, and the Early Head Start program. Overall, they note, the United States' public investment in quality child care and early education is relatively minimal, though bold proposals to bolster that investment are now on the table

Is income during children's earliest years a key determinant of long-term child and adult success in the longer run? The research to date, Christopher Wimer and Sharon Wolf write, suggests that it is. Wimer and Wolf review substantial descriptive evidence that income can enhance child development and later adult outcomes, and that it does so most strongly during children's earliest years. Next they wrestle with the question of whether this relationship is causal. After outlining the challenges in identifying such causal relationships, they describe a number of studies that purport to overcome these challenges through quasi- or natural experiments. Among other topics, the authors examine how family income affects the outcomes of young children compared to those of older children, and how its effects vary among poor, low-income, and higher-income families. They also look at the evidence around other dimensions of income, including nonlinear relationships between income and key outcomes, instability in income versus the absolute level of income, and various forms of income, and they review the evidence for impacts of in-kind or near-cash income supports. Finally, Wimer and Wolf highlight some recently launched studies that will shed further light on the relationship between income and development in children's earliest years, and they suggest how policy might better provide income support to low-income families and their children.

Few studies have compared knowledge of the specific health risks of cannabis across jurisdictions. This study aimed to examine perceptions of the health risks of cannabis in Canada and US states with and without legal non-medical cannabis. Cross-sectional data were collected from the 2018 and 2019 International Cannabis Policy Study online surveys. Respondents aged 16-65 (n = 72 459) were recruited from Nielsen panels using non-probability methods. Respondents completed questions on nine health effects of cannabis (including two 'false' control items). Socio-demographic data were collected. Regression models tested differences in outcomes between jurisdictions and by frequency of cannabis use, adjusting for socio-demographic factors. Across jurisdictions, agreement with statements on the health risks of cannabis was highest for questions on driving after cannabis use (66-80%), use during pregnancy/breastfeeding (61-71%) and addiction (51-62%) and lowest for risk of psychosis and schizophrenia (23-37%). Additionally, 12-18% and 6-7% of respondents agreed with the 'false' assertions that cannabis could cure/prevent cancer and cause diabetes, respectively. Health knowledge was highest among Canadian respondents, followed by US states that had legalized non-medical cannabis and lowest in states that had not legalized non-medical cannabis (P < 0.001). Overall, the findings demonstrate a substantial deficit in knowledge of the health risks of cannabis, particularly among frequent consumers.

Fluent conversation requires temporal organization between conversational exchanges. By performing a systematic review and Bayesian multi-level meta-analysis, we map the trajectory of infants' turn-taking abilities over the course of early development (0 to 70 months). We synthesize the evidence from 26 studies (78 estimates from 429 unique infants, of which at least 152 are female) reporting response latencies in infant-adult dyadic interactions. The data were collected between 1975 and 2019, exclusively in North America and Europe. Infants took on average circa 1 s to respond, and the evidence of changes in response over time was inconclusive. Infants' response latencies are related to those of their adult conversational partners: an increase of 1 s in adult response latency (e.g., 400 to 1400 ms) would be related to an increase of over 1 s in infant response latency (from 600 to 1857 ms). These results highlight the dynamic reciprocity involved in the temporal organization of turn-taking. Based on these results, we provide recommendations for future avenues of enquiry: studies should analyze how turn-by-turn exchanges develop on a longitudinal timescale, with rich assessment of infants' linguistic and social development.

Play is a central discourse in policy and practice pertaining to young children's learning, development and well-being in many countries around the world. Dominant ways of understanding and advocating for play often construct universalising notions of children and childhood, overlooking that play is always-already culturally situated and ideologically inflected. In play discourse, happiness is constituted as an unproblematised condition, goal and outcome of children's play, and as an antidote to contemporary childhoods burdened by geopolitical, social and environmental issues. In this article, the authors analyse images of children at play in curriculum frameworks, documents and reports, exploring the ways that happiness consistently features as a largely unspoken/unwritten expectation and rationale for policies and policy advocacy concerning play in early childhood. Informed by post-structural theories of biopolitical power, everyday practices and the cultural politics of emotion, and utilising analytical techniques from social semiotics and discourse analysis, the authors argue that visual representations in the documents analysed depict play and happiness as co-implicated. They contend that these representations function in the production of play discourses that both assume and obligate children and childhood to happiness. They interrogate play in these terms, critiquing discursive tropes that are contingent on the co-implication of play and happiness with biopolitical subjectification in order to consider the relevance and utility of play as a policy and pedagogical export to diverse parts of the world.

While most early childhood education and care (ECEC) programs taken to scale in the United States have served socially disadvantaged 3- to 5-years-olds, Norway scaled up universal ECEC from age 1. We investigated the consequences of Norway's universal ECEC scale-up for children's early language skills, exploiting variation in ECEC coverage across birth cohorts and municipalities in a population-based sample (n = 63,350). Estimates from two-stage least squares (i.e., instrumental variable) regression and generalized difference-in-differences models indicated the scale-up of universal ECEC led to improved language outcomes, particularly for low-income children. As preschool programs at scale become increasingly common in the United States, our results from Norway help inform debate about the merits of universal versus targeted policies and should provoke discussion about the benefits of beginning ECEC programs as early as infancy.

This research study recruited 107 fathers from the United States (n = 31), Taiwan (n = 36), and Thailand (n = 37) to examine fathers' involvement in daily caregiving and engagement tasks, as well as fathers' accessibility to their infant(s) during weekdays and the weekend. Results indicated that the most influential demographic variables on father involvement were the interaction between fathers' education and income, number of children in the household, as well as country between the U.S. and Thailand regardless of living area, fathers' age, education and income alone. Additionally, fathers showed different involvement during weekdays and the weekend. Father's education level, number of children in the household, and the interaction between education and income had a combined effect on father involvement during the week and on the weekend. Fathers in the United States showed higher involvement in infant caregiving during the weekend when compared to fathers in Taiwan and Thailand.

We discuss oral history interviews with academics who laid the foundation of research and pedagogies in daycare for under three-year-olds in Europe and North and South America since the 1970s. Their work is clearly embedded in the social-political context of their country: the left-wing programmes for disadvantaged families in the U.S.A.; neoliberal policy and daycare because of employment of mothers in the U.S.A.; social-democratic policy and family support in Sweden; and state-controlled institutions for education in socialist-communist East Germany. The interviewees acknowledge the risk of infant daycare for emotional security. Related to values and social context in their country, the interviewees contributed to different interpretations of attachment theory, attachment policies and innovative insights such as multiple attachments, friendship between one-year-olds, group sensitivity, professional love and home-to-centre and vice versa transitions. All are convinced that today we have the knowledge to offer high-quality daycare, but that infant daycare can be a risk when economic demands are too dominant.

Infants and toddlers (birth to age 3) learn what it means to be members of, and to belong to and be accepted by, their societies by adopting behaviors, attitudes, manners, and ways of thinking that are deeply rooted in what is valued in their culture. Infant and toddler teachers play a pivotal role as transmitters and maintainers of culture when they make decisions about the curriculum, engage in caregiving interactions, make pedagogical decisions, and use language. Cultural meanings ascribed to teachers' practices in 1-year-old care in the United States and Hong Kong were examined using video data and transcripts of video-elicited focus group discussions. Three important areas in which cultural transmission differed between the United States and Hong Kong relate to: egalitarian versus hierarchical societal structure; individualism versus collectivism; and different goals for independence. Social learning theory and ecological systems theory framed this study and informed interpretation of results.

One of the earliest challenges for infants and their parents is developing a diurnal sleep--wake cycle. Although the human biological rhythm is circadian by nature, its development varies across cultures, based in part on "zeitgebers" (German: literally "time-givers") or environmental cues. This study uses the developmental niche framework by Super and Harkness to address two different approaches to getting the baby on a schedule. 33 Dutch and 41 U.S. mothers were interviewed when their babies were 2 and 6 months old. A mixed-methods analysis including counts of themes and practices as well as the examination of actual quotes shows that Dutch mothers emphasized the importance of regularity in the baby's daily life and mentioned practices to establish regular schedules for the baby's sleeping, eating, and time outside more than American mothers did. The U.S. mothers, in contrast, discussed regularity less often and when they did, they emphasized that their baby should develop his or her own schedule. Furthermore, actual daily schedules, based on time allocation diaries kept by the mothers, revealed greater regularity among the Dutch babies. Discussion focuses on how culture shapes the development of diurnal rhythms, with implications for "best practices" for infant care.

Although a large body of literature recognises the impact of parent-teacher relationships on infant everyday experiences, less is known about the emotional experience and associated expectations of the adults themselves during earliest transitions. In the context of a multi-site international investigation across five countries -- Brazil, Finland, Scotland, New Zealand, and the United States -- the present paper examines teacher and parent interviews to reveal expectations prior to and after the transition to ECEC, highlighting the associated emotions that arise during this process. Irrespective of whether expectations are met, parents universally express insecurities and fears in relation to the transition. Parents are aware of the impact that the various aspects of the ECEC setting have on their child, and acknowledge difficulty in relinquishing control of the care of their child. Despite these concerns, parents consistently articulate their strong trust in the institution and the professional expertise of the staff. Correspondingly, teachers are keenly aware of the importance of their role in supporting families, and hold certain expectations for how the transition experience will play out accordingly. Regardless of country of context, the study shows that clear communication surrounding both centre and parental expectations establishes high levels of trust and ameliorates anxiety. Teacher-parent dialogues concerning routines, preferences, and anticipations are seen as pivotal in supporting a positive transition for all.

The Diversity-Informed Infant Mental Health Tenets (St. John, Thomas, Noroña, & Irving Harris Foundation Professional Development Network Tenets Working Group, 2012) synthesized efforts to integrate principles of diversity, equity, and inclusion into the infant and early childhood mental health field. The Tenets were born of a recognition that social forces conspire to interfere with the capacity of some groups of children and families to thrive. The Tenets are a response to the persistent and urgent need to expand our professional capacity and deepen our work with families by increasing awareness and developing intentional action for individual, organizational, and systemic change. This article presents a revised and expanded edition of the Tenets. The authors introduce a new name--Diversity-Informed Tenets for Work with Infants, Children, and Families--and describe the productive struggles, deepened understandings, sustaining alliances, and critical insights that brought this edition into being.

Certain social context features (e.g., maternal presence) are known to increase young children's exploration, a key process by which they learn. Yet limited research investigates the role of social context, especially peer presence, in exploration across development. We investigate whether the effect of peer presence on exploration is mediated by age or cultural-specific experiences. We test its impact on exploration across development (2-11 years) and across cultures (United States and the Tsimane', indigenous farmer-foragers in Bolivia). Specifically, peer presence does not boost exploration among young U.S. children and becomes more inhibitory among school-age children. In contrast, peer presence facilitates exploration and provides an additional boost for older Tsimane' children, who differ from U.S. children in their cultural-specific learning experiences (e.g., formal education), among other differences. We discuss potential cultural factors and mechanisms by which peer presence may boost exploratory behavior.

Studies on the relationship between bookreading and language development typically lack data about which books are actually read to children. This paper reports on an Internet survey designed to address this data gap. The resulting dataset (the Infant Bookreading Database or IBDb) includes responses from 1,107 caregivers of children aged 0-36 months who answered questions about the English-language books they most commonly read to their children. The inclusion of demographic information enables analysis of subsets of data based on age, sex, or caregivers' education level. A comparison between our dataset and those used in previous analyses reveals that there is relatively little overlap between booklists gathered from proxies such as bestseller lists and the books caregivers reported reading to children in our survey. The IBDb is available for download for use by researchers at .

This study aimed to better understand predictors of evidence-based assessment practices for autism spectrum disorder (ASD). Nationwide, 402 school psychologists were surveyed for their knowledge of and training and experience with ASD on assessment practices, including reported areas of training needs. The majority of school psychologists reported that they did not engage in comprehensive assessment of ASD, which was defined as assessments that consider all areas of development in addition to the use of ASD-specific instruments. Results from logistic regression revealed that experience and training, working with young children with ASD, and geographic location predicted use of evidence-based assessment practices. Experience and training with ASD was the strongest predictor of evidence-based assessment. No differences in training needs were indicated by school psychologists whose practices were consistent with evidence-based assessment and those whose practices were not. Overall, the results identified gaps between best and current practices by school psychologists and highlight areas of need for additional training and professional development.

It is not only in families that young children are influenced to become members of their culture. Around the world and within individual countries, culture influences how care is provided to infants and toddlers in child care settings. In turn, infants and toddlers begin to learn how to act and think as members of their culture. From ways that teachers handle conflicts between toddlers, to how teachers manage transitions, to the organization of groups and physical environments, to more conscious transmission of culture through curriculum, culture influences infants and toddlers to become cultural beings that function well within their culture. This article explores cultural variations in group care and what infants and toddlers learn from these practices about being members of a culture.

The trend toward inclusive and interdisciplinary service delivery in early intervention and early childhood special education has propelled collaboration focused on aligning respective standards for personnel preparation across professional organizations (V. D. Stayton, 2015). Representing what a state deems to be the minimum parameters necessary to ensure a licensee is ready to practice, licensure requirements have historically been seen as a conduit for ensuring the availability of competent professionals (W. Geiger et al., 2014). Advocacy has focused on increasing congruence across competencies and licensure requirements to reflect the commonalities required of practice for all providers of services to young children with disabilities and their families. In an effort to document the current status of national licensure/certification requirements for professionals working in early childhood, the Early Childhood Personnel Center investigated state licensure parameters for 13 professional disciplines across all 50 states and the District of Columbia. Results indicate historic variance in licensure requirements persists within and between disciplines involved in the delivery of services to young children with disabilities and their families. Detailed findings and implications are discussed.