Child Development Outcomes Research Articles

Using Early Childhood Data and Measurement to Leverage Change: Are We Making Progress?

ABSTRACT As countries make continued investments in early childhood care and education (ECCE) systems, data and measurement play a critical role in outlining strengths and areas for improvement. To promote data-driven decision-making across all levels of early childhood systems, measurement must be valid, reliable, and feasible, especially when used at scale. But beyond psychometrics, for maximum impact, the pathway by which data and measurement can lead to change must be articulated, including integration of ECCE into the country's education management systems and increased insight into building demand for ECCE data. This article focuses on the role that measurement can play in ECCE, specifically addressing data on child development outcomes and quality of children’s learning environments. I will outline key issues facing ECCE data and measurement, discuss how data and measurement can facilitate change, and provide next steps toward building country systems and global support for effective use of ECCE data. I will conclude with examples of possible paths forward for ECCE leaders, researchers, and practitioners at the country and global levels.

Associations between maternal stressful life events and child health outcomes in indigenous and non-indigenous groups in New Zealand

ABSTRACT Exposure to stressful life events (SLE) around the time of pregnancy is associated with adverse health outcomes for mothers and children. Previous New Zealand research found Indigenous Māori women are more likely to be exposed to SLE than non-Māori, and are exposed to a higher number of SLE. The consequences of this for ethnic inequities in child health outcomes are unknown. This paper examines the relationship between patterns of maternal SLE exposure with child health and development outcomes at age 3 years, for Indigenous and non-Indigenous children. We found most children had a stressful early life environment at least sometimes, but more than a quarter of Māori children had a mother experiencing multiple SLE on all occasions measured. We found a clear association between maternal experiences of SLE and disordered child sleep and development concerns. While not able to fully assess the contribution of maternal SLE to ethnic inequities in child health outcomes, we did clearly demonstrate that more Māori children have mothers exposed to multiple SLE, and that these maternal SLE are associated with poorer child outcomes. The impacts of chronic SLE exposure need to be better understood, especially given the large ethnic disparity in chronic SLE exposure.

DEVELOPMENT OF SCIENCE IN COGNITIVE ASPECTS THROUGH PROBLEM BASED LEARNING (PBL), DEMONSTRATION, DIRECT INSTRUCTION, AND EXPERIMENT METHOD IN GROUP B

The currect problem that takes place is the low cognitive abilities of children in Group B of Kindergarten Kenanga Banjarmasin in solving everyday problems and acting creatively. Efforts to improve developmental activities and outcomes, particularly through a combination of direct instruction, demonstration, problem-based learning, and experimentation were done. This study aims to analyse teacher activities, children's activities, and children's development outcomes. Three meetings were used to conduct the qualitative classroom action research (CAR) portion of this study. Ten children from Group B of Kindergarten Kenanga Banjarmasin were used as research subjects. The research results showed that the teacher's activities received a score of 22 for quite good criteria at meeting I and a score of 34 for very good criteria at meeting III. 40% of children's activity occurs at meeting I, 60% at meeting II, and 100% at meeting III. At the first meeting, the child's cognitive development was 40 percent, and at the third meeting, it was 100 percent.

The Impact of Parental Marital Relationships on Children's Multi-domain Development Outcomes

Marital relationship is the core relationship of family relationship, which has a very important impact on the stability of the family and the development of children. Previous studies have found that good parental marital relationships favor positive developmental outcomes for children, whereas poorer one lead to poorer developmental outcomes. This study aims to delve into the impact of parental marital relationships on children's individual development. Through detailed analysis of existing research and case studies, we will focus on exploring the profound effects of parental marital relationships on children's social skills, academic performance, and sexual behavior. The paper emphasizes the importance of stable family environments and healthy marital relationships for the proper growth of children and discusses possible intervention measures. The results of this study can improve people's understanding of the impact of marital relationships on children's development outcomes, and also provide empirical support for interventions to improve children's multi-domain development outcomes by improving parents' marital relationships.

Household income supplements in early childhood to reduce inequities in children's development

BackgroundEarly childhood interventions have the potential to reduce children's developmental inequities. We aimed to estimate the extent to which household income supplements for lower-income families in early childhood could close the gap in children's developmental outcomes and parental mental health. MethodsData were drawn from a nationally representative birth cohort, the Longitudinal Study of Australian Children (N = 5107), which commenced in 2004 and conducted follow-ups every two years. Exposure was annual household income (0–1 year). Outcomes were children's developmental outcomes, specifically social-emotional, physical functioning, and learning (bottom 15% versus top 85%) at 4–5 years, and an intermediate outcome, parental mental health (poor versus good) at 2–3 years. We modelled hypothetical interventions that provided a fixed-income supplement to lower-income families with a child aged 0–1 year. Considering varying eligibility scenarios and amounts motivated by actual policies in the Australian context, we estimated the risk of poor outcomes for eligible families under no intervention and the hypothetical intervention using marginal structural models. The reduction in risk under intervention relative to no intervention was estimated. ResultsA single hypothetical supplement of AU$26,000 (equivalent to ∼USD$17,350) provided to lower-income families (below AU$56,137 (∼USD$37,915) per annum) in a child's first year of life demonstrated an absolute reduction of 2.7%, 1.9% and 2.6% in the risk of poor social-emotional, physical functioning and learning outcomes in children, respectively (equivalent to relative reductions of 12%, 10% and 11%, respectively). The absolute reduction in risk of poor mental health in eligible parents was 1.0%, equivalent to a relative reduction of 7%. Benefits were similar across other income thresholds used to assess eligibility (range, AU$73,329-$99,864). ConclusionsHousehold income supplements provided to lower-income families may benefit children's development and parental mental health. This intervention should be considered within a social-ecological approach by stacking complementary interventions to eliminate developmental inequities.

Assessing child development scores among minority and Indigenous language versus dominant language speakers: a cross-sectional analysis of national Multiple Indicator Cluster Surveys

Multiple studies have highlighted the inequities minority and Indigenous children face when accessing health care. Health and wellbeing are positively impacted when Indigenous children are educated and receive care in their maternal language. However, less is known about the association between minority or Indigenous language use and child development risks and outcomes. In this study, we provide global estimates of development risks and assess the associations between minority or Indigenous language status and early child development using the ten-item Early Child Development Index (ECDI), a tool widely used for global population assessments in children aged 3-4 years. We did a secondary analysis of cross-sectional data from 65 UNICEF Multiple Indicator Cluster Surveys (MICS) containing the ECDI from 2009-19 (waves 4-6). We included individual-level data for children aged 2-4 years (23-60 months) from datasets with ECDI modules, for surveys that captured the language of the respondent, interview, or head of household. The Expanded Graded Intergenerational Disruption Scale was used to classify household languages as dominant versus minority or Indigenous at the country level. Our primary outcome was on-track overall development, defined per UNICEF's guidelines as development being on track for at least three of the four ECDI domains (literacy-numeracy, learning, physical, and socioemotional). We performed logistic regression of pooled, weighted ECDI scores, aggregated by language status and adjusting for the covariables of child sex, child nutritional status (stunting), household wealth, maternal education, developmental support by an adult caregiver, and country-level early child education proportion. Regression analyses were done for all children aged 3-4 years with ECDI results, and separately for children with functional disabilities and ECDI results. 65 MICS datasets were included. 186 393 children aged 3-4 years had ECDI and language data, corresponding to an estimated represented population of 34 714 992 individuals. Estimated prevalence of on-track overall development as measured by ECDI scores was 65·7% (95% CI 64·2-67·2) for children from a minority or Indigenous language-speaking household, and 76·6% (75·7-77·4) for those from a dominant language-speaking household. After adjustment, dominant language status was associated with increased odds of on-track overall development (adjusted OR 1·54, 95% CI 1·40-1·71), which appeared to be largely driven by significantly increased odds of on-track development in the literacy-numeracy and socioemotional domains. For the represented population aged 2-4 years (n=11 465 601), the estimated prevalence of family-reported functional disability was 3·6% (95% CI 3·0-4·4). For the represented population aged 3-4 years with a functional disability (n=292 691), language status was not associated with on-track overall development (adjusted OR 1·02, 95% CI 0·43-2·45). In a global dataset, children speaking a minority or Indigenous language were less likely to have on-track ECDI scores than those speaking a dominant language. Given the strong positive benefits of speaking an Indigenous language on the health and development of Indigenous children, this disparity is likely to reflect the sociolinguistic marginalisation faced by speakers of minority or Indigenous languages as well as differences in the performance of ECDI in these languages. Global efforts should consider performance of measures and monitor developmental data disaggregated by language status to stimulate efforts to address this disparity. None. For the Spanish, Kaqchikel and K'iche' translations of the abstract see Supplementary Materials section.

The Effects of the 2021 Child Tax Credit on Child Developmental Outcomes

Child poverty fell to historic lows in 2021, in large part due to the temporary expansion of the Child Tax Credit (CTC). We consider the possible implications of this expansion on children’s short- and long-term development. To do so, we review the available short-run evidence from the 2021 expansion and the existing research evidence on the longer-run effects of similar income transfers in childhood on child health and human capital. We conclude that the CTC likely improved child health and well-being in the short and long run, with greater impacts for poor children and modest or nonexistent effects for nonpoor children. Moreover, the effects might be more substantial for younger children and for those in places with weaker safety nets.

Country-Level Improvements in Nurturing Care and Child Development

This cross-sectional study examines whether provision of nurturing care in 31 countries over 10 years was associated with improvements in countries’ child development outcomes.

The Mood, Mother and Child Study: Protocol for a Prospective Longitudinal Study and Randomized Controlled Trial.

Perinatal depression affects >400,000 mother-child dyads in the United States every year and is associated with numerous adverse maternal and child developmental outcomes. Previous research implicates the dysregulation of oxytocin and the hypothalamic-pituitary-adrenal (HPA) axis functioning in mothers and children as potential mechanisms mediating or moderating the transmission of risk associated with maternal depression. The Mood, Mother and Child study will examine the psychobiological sources of risk and resilience within mother-child dyads affected by maternal depression. This manuscript describes (1) the study rationale and aims, (2) the research design and procedures and how they were altered in response to the COVID-19 pandemic, and (3) the data analysis plan to test the study hypotheses. This is a prospective longitudinal study with an embedded randomized controlled trial that examines (1) correlations among postpartum depression and anxiety symptoms, maternal and child oxytocin and HPA axis functioning, and child developmental outcomes and (2) the causal relationship between exogenous oxytocin and HPA reactivity. This study is funded by the National Institute of Child Health and Human Development with institutional review board approval. Recruitment and data collection have commenced, and the expected results will be available in 2024. Analyses are presented for testing the proposed hypotheses. The unique combination of a prospective longitudinal research design with an embedded randomized controlled trial will allow the Mood, Mother and Child study to apply a developmental lens to the study of maternal depression and anxiety symptoms from birth to middle childhood and the psychobiological mechanisms promoting risk and resiliency for both mother and child outcomes. This will be the first study that simultaneously evaluates (1) the role of oxytocin using multiple methodologies, (2) the causal relationships between exogenous oxytocin and HPA axis functioning among mothers with differing levels of depression and anxiety symptoms, and (3) the multiple mediating and moderating roles of parenting behaviors and maternal and child psychobiological characteristics. The goals of these aims are to provide insights into the psychobiological effects of oxytocin in women and inform future clinical trials to treat perinatal mood disorders. ClinicalTrials.gov NCT03593473; https://classic.clinicaltrials.gov/ct2/show/NCT03593473. DERR1-10.2196/51132.

Associations Between Parenting Behaviors and Behavioral Problems in Young Children With Developmental Delays.

Children with developmental delays (DD) are at heightened risk for developing behavior problems, which contribute to parenting stress and caregiving burden. There is an established relation between parenting behaviors and child developmental outcomes with less known about parent-child interactions in young children with DD. The present study examined the associations between parenting behaviors and child behavior in a sample of 180 families with preschool-aged children with DD. Results indicated that caregivers' harsh and coercive behaviors were associated with observed challenging behavior in children. Child age, as well as the number of commands issued by caregivers were associated with noncompliance in children. The significance and limitations of these findings are discussed, as well as recommendations for interventions and future research.

Associations between parental and postnatal metal mixture exposure and developmental delays in a Taiwanese longitudinal birth cohort of preschool children.

Studies have evaluated the impact of environmental exposure to neurotoxic metals on developmental delays (DDs). However, comprehensive understanding regarding the associations between parental and postnatal exposure to metal mixtures and the occurrence of DDs in offspring is limited. In this study, we assessed the relationships between parental and postnatal exposure to three metals (arsenic [As], cadmium [Cd], and lead [Pb], levels of which were measured in toenails) and suspected DDs (SDDs) in preschool children within a Taiwanese longitudinal birth cohort. In total between 2017 and 2021, 154 pairs of parents and their children under the age of 6 years were recruited, and 462 toenail samples and 154 completed questionnaires were collected. Metal concentrations in toenails were quantified using inductively coupled plasma-mass spectrometry after acid digestion of the toenails. We applied multivariable logistic regression and Bayesian kernel machine regression to evaluate the overall effect and to identify key components of the metal mixture that were associated with the SDD risk. Higher concentrations of As, Cd, and Pb were found in the toenails of the parents of children with SDDs compared with the toenails of the parents of children without SDDs. Our examination of the combined effects of exposure to the metal mixture revealed that As concentration in the father's toenail and Cd concentration in the mother's toenail were positively correlated with the risk of SDDs in their offspring. Notably, the effect of exposure to the metal mixture on the risk of SDDs was stronger in boys than in girls. Our findings suggest that parents taking measures to minimize their exposure to metals might enhance their children's developmental outcomes.

Mothers' experiences of emotional abuse from an intimate partner and its associations with children's developmental outcomes at 5 years

BackgroundIntimate partner violence (IPV) is associated with an increased risk of poorer child development. Existing research has focused on physical abuse with less known about the associations with emotional IPV. ObjectiveTo describe the period prevalence of mother's experiences of emotional IPV during children's preschool years and associations with child mental, physical, social, and cognitive development. MethodsSecondary analysis of control group data (n = 194) from an Australian randomised trial (right@home), which recruited pregnant women experiencing social adversity from antenatal clinics in 2013–14. Women reported emotional abuse (Composite Abuse Scale) at child ages 3–5 years. Measures of child development at 5 years included: Strengths and Difficulties Questionnaire, Social Skills Improvement System, Pediatric Quality of Life Inventory, Clinical Evaluation of Language Fundamentals, School Entry Alphabetic and Phonological Awareness Readiness Test, NIH executive function subtests, sleep and health. The prevalence of emotional IPV from 3 to 5 years was estimated. Regression models compared developmental outcomes according to emotional IPV exposure, adjusted for child age, child gender, and maternal education. Missing data were accounted for using multiple imputation. ResultsFrom 3-5 years, emotional IPV was experienced by 57% of women. Emotional IPV exposure was consistently associated with poorer child developmental outcomes. Differences were most apparent for SDQ internalising (mean difference 1.2, 95% CI 0.2 to 2.1) and externalising difficulties (1.2, 95% CI −0.1 to 2.4). ConclusionsEmotional IPV was highly prevalent amongst families experiencing social adversity. Developing acceptable and effective identification processes and interventions that prioritise families experiencing co-occurring social adversities should be a public health priority.

Impact of the COVID-19 pandemic on the prevalence of postnatal depression in Singapore

Postnatal depression is a critical public health issue with substantial impact on child development outcomes and family functioning. With the additional stressors that arose during the COVID-19 pandemic, the impact on global mental health has been marked. This study aims to examine the change in the prevalence of postnatal depression (PND) in Singaporean women before the onset of the pandemic and during the pandemic period. A single-center observational cross-sectional study was conducted at Kandang Kerbau Women’s and Children’s Hospital (KKH) where women were screened for postnatal depression using the Edinburgh Postnatal Depression Scale (EPDS). High scorers on EPDS (EPDS≥13) were considered probable cases of postnatal depression. The prevalence of high EPDS scorers increased from 4.9% in 2019 to 6.5% in 2021, which was statistically significant ( p = .028). The total number of women who received screening for postnatal depression at KKH increased by 42.6% in 2021 compared to 2019, whilst the numbers identified as probable cases increased by 91% over the same period. The prevalence of PND in Singapore significantly increased during the COVID-19 pandemic.

Concurrent and lagged physiological synchrony during mother–child interaction and their relationship to positive affect in 8- to 10-year-old children

Mother–child interaction has been characterized by a fine-tuning of behavior and physiological activity. Yet, little is known about the dynamics of mother–child physiological synchrony during early school age and their associations to positive affect. To investigate these processes, 42 mother–child dyads, with children aged 8 to 10 years, played an interactive game while their interbeat intervals (IBI) and respiratory sinus arrhythmia (RSA) were measured simultaneously. IBI/RSA synchrony was calculated using cross-correlations of the IBI/RSA second-by-second time series for lags − 3 to + 3 seconds. Mother’s and child’s individual and shared positive affect were microcoded. During the interactive tasks, IBI and RSA synchrony significantly increased compared to control conditions. RSA and affect synchrony were significantly stronger for negative compared to positive lags indicating a stronger child leads/mother follows covariation. Further, dyad’s IBI and RSA synchrony were significantly associated to mother’s and child’s individual positive affect. Our data suggest that in low-risk community samples, mothers may respond to their children’s positive affect by matching their own affect and physiology. Investigating these temporally precise, concurrent and lagged synchrony processes may open up new avenues for understanding the ways in which parent–child interactions contribute to child developmental outcomes.

Patterns of Social Determinants of Health and Child Mental Health, Cognition, and Physical Health

Social determinants of health (SDOH) influence child health. However, most previous studies have used individual, small-set, or cherry-picked SDOH variables without examining unbiased computed SDOH patterns from high-dimensional SDOH factors to investigate associations with child mental health, cognition, and physical health. To identify SDOH patterns and estimate their associations with children's mental, cognitive, and physical developmental outcomes. This population-based cohort study included children aged 9 to 10 years at baseline and their caregivers enrolled in the Adolescent Brain Cognitive Development (ABCD) Study between 2016 and 2021. The ABCD Study includes 21 sites across 17 states. Eighty-four neighborhood-level, geocoded variables spanning 7 domains of SDOH, including bias, education, physical and health infrastructure, natural environment, socioeconomic status, social context, and crime and drugs, were studied. Hierarchical agglomerative clustering was used to identify SDOH patterns. Associations of SDOH and child mental health (internalizing and externalizing behaviors) and suicidal behaviors, cognitive function (performance, reading skills), and physical health (body mass index, exercise, sleep disorder) were estimated using mixed-effects linear and logistic regression models. Among 10 504 children (baseline median [SD] age, 9.9 [0.6] years; 5510 boys [52.5%] and 4994 girls [47.5%]; 229 Asian [2.2%], 1468 Black [14.0%], 2128 Hispanic [20.3%], 5565 White [53.0%], and 1108 multiracial [10.5%]), 4 SDOH patterns were identified: pattern 1, affluence (4078 children [38.8%]); pattern 2, high-stigma environment (2661 children [25.3%]); pattern 3, high socioeconomic deprivation (2653 children [25.3%]); and pattern 4, high crime and drug sales, low education, and high population density (1112 children [10.6%]). The SDOH patterns were distinctly associated with child health outcomes. Children exposed to socioeconomic deprivation (SDOH pattern 3) showed the worst health profiles, manifesting more internalizing (β = 0.75; 95% CI, 0.14-1.37) and externalizing (β = 1.43; 95% CI, 0.83-2.02) mental health problems, lower cognitive performance, and adverse physical health. This study shows that an unbiased quantitative analysis of multidimensional SDOH can permit the determination of how SDOH patterns are associated with child developmental outcomes. Children exposed to socioeconomic deprivation showed the worst outcomes relative to other SDOH categories. These findings suggest the need to determine whether improvement in socioeconomic conditions can enhance child developmental outcomes.

Neuroinfectious Diseases in Children: Pathophysiology, Outcomes, and Global Challenges

Pathogens with affinity for the central nervous system (CNS) in children are diverse in their mechanisms of infecting and attacking the brain. Infections can reach the CNS via hematogenous routes, transneurally thereby avoiding the blood-brain barrier, and across mucosal or skin surfaces. Once transmission occurs, pathogens can wreak havoc both by direct action on host cells and via an intricate interplay between the protective and pathologic actions of the host's immune system. Pathogen prevalence varies depending on region, and susceptibility differs based on epidemiologic factors such as age, immune status, and genetics. In addition, some infectious diseases are monophasic, whereas others may lie dormant for years, thereby causing a dynamic effect on outcomes. Outcomes in survivors are highly variable for each particular pathogen and depend on the vaccination and immune status of the patient as well as the speed by which the patient receives evidence-based treatments. Given pathogens cause communicable diseases that can cause morbidity and mortality on a population level when spread, the burden is often the greatest and the outcomes the worst in low-resource settings. Here we will focus on the most common infections with a propensity to affect a child's brain, the pathologic mechanisms by which they do so, and what is known about the developmental outcomes in children who are affected by these infections.

Diurnal Cortisol Change Moderates the Associations Between Bedtime Parenting Sensitivity and Young Children's Executive Functioning and Emotion Regulation

Abstract: The present study examined children's diurnal cortisol as a moderator of the association between parenting sensitivity at bedtime and young children's executive functioning and emotion regulation. Fifty-one children ( M age = 4.47 years) and their families participated. Parenting sensitivity was assessed from video recordings of child bedtime. Average child morning and evening cortisol levels were measured from saliva across 3 days. A greater decline in cortisol from morning to evening reflected healthy diurnal patterning. Children's executive functioning was measured objectively, and parents reported on children's emotion regulation. Regression analyses showed that lower parenting sensitivity at bedtime was associated with lower executive functioning and more labile and less adaptive emotion regulation only for children who showed less cortisol decline from morning to evening, suggesting that adaptive cortisol patterning may be protective in the context of low parenting sensitivity. The findings identify children at greatest risk and inform interventions targeting children's developmental outcomes.

Stakeholders’ Perspectives of Enablers and Barriers to Successfully Implementing an Integrated Early Childhood Development Program in an Informal Urban Settlement in Kenya

Integrated early childhood development (ECD) programs boost child health and developmental outcomes. However, the factors contributing to the successful implementation of such programs in informal urban settlements are not well researched. We conducted 14 focus group discussions and 13 key informant interviews with 125 caregivers of children under the age of 5 years and stakeholders, exploring their views on enablers and barriers to implementing an integrated ECD program in an informal settlement in Kenya. Strategic engagement, capacity building, transparency, fair compensation of ECD workforce, communication skills, and the need to tailor ECD programs to local realities were discussed. An equity-focused implementation approach for integrated ECD programs is timely.

Intergenerational transmission of parent adverse childhood experiences to child outcomes: A systematic review and meta-analysis

ObjectiveThe current meta-analytic review provides a comprehensive synthesis of studies examining parent exposure to ACEs and the developmental and mental health outcomes of their children. Participants and settingEligible studies up to August 2021 were identified through comprehensive database searches in PsycINFO, MEDLINE, and Embase. Studies that were included examined the intergenerational effects of parent ACEs on child development (i.e., cognitive, language, motor, social difficulties, and early social-emotional development) or mental health (i.e., internalizing problems, externalizing problems) outcomes. MethodsData were extracted by two coders using a standardized extraction protocol. A multi-level meta-analytic approach was used to derive pooled effect sizes and test for moderators. ResultsA total of 52 studies were included in the meta-analysis. Parent ACEs were positively associated with child mental health problems (r=0.17, 95% CI [0.12, 0.21], p<.001), child externalizing difficulties (r=0.20, 95% CI [0.15, 0.26], p<.001), and child internalizing difficulties (r=0.17, 95% CI [0.11, 0.22], p<.001). There were no significant sociodemographic (i.e., child age, parent age, income level, child sex, or racial/ethnic minority status) or methodological (i.e., study type or quality) moderators of these associations. Preliminary evidence suggests that parent ACEs were not associated with offspring developmental outcomes, such as cognitive or language skills. ConclusionsResults suggest that parent ACEs are associated with some, but not all child outcomes. Additional research focused on the mechanisms of transmission are needed to inform policies and practices related to the intergenerational transmission of ACEs.

Promoting healthy sleep in Chinese kindergarteners through a family-based intervention: protocol of the “Healthy Sleep” randomised controlled trial

BackgroundSleep is instrumental for growth and development in children, making it critical to establish healthy sleep habits from the earliest years of life. Many kindergarteners (3–6 years) in China have inadequate and poor sleep, necessitating targeted interventions. This research protocol details the “Healthy Sleep” intervention that was designed to promote healthy sleep among kindergarteners in China.MethodsThe “Healthy Sleep” intervention will be family-based and will support parents as change agents. The development of the intervention is based on evidence regarding correlates of sleep in young children and guided by Bandura’s social cognitive theory. A 12-month randomised controlled trial will be conducted to examine the efficacy of the intervention for promoting healthy sleep in Chinese kindergarteners and the intervention's effects on child development outcomes. A targeted sample of 160 kindergarteners and their parents will be recruited through social media. The intervention group (n = 80) will receive monthly webinars for one year that include multiple intervention components – including educational training, goal setting and planning, as well as follow-up support sessions. The control group (n = 80) will receive videos of the recorded educational sessions after the study end. For primary outcomes, child sleep behaviours will be examined using the Child Sleep Health Questionnaire. For secondary outcomes, communication, fine motor, gross motor, personal-social, and problem-solving development will be examined using the Ages and Stages Questionnaire; executive functions will be examined using the Head, Toes, Knees, and Shoulders Revised tasks. Potential intervention mediators and covariates will be measured using a parental questionnaire. Mixed models will be conducted.DiscussionThis intervention targets sleep behaviours among kindergarteners in China. It has the potential to inform programs to support parents in helping their child establish healthy sleep habits from the earliest years of life. The study will provide high-quality experimental evidence on sleep behaviours in relation to development outcomes in kindergarteners. This evidence will inform family-based strategies to optimise early childhood development and inform national and international updates of the sleep recommendations for young children.Trial registrationThe trial was registered prospectively at Chinese Clinical Trial Registry (ID: ChiCTR2300072105) on 2 June 2023.