Poverty, Relationship Conflict, and the Regulation of Cortisol in Small and Large Group Contexts at Child Care

The purpose of this research is to explore the dynamics of cortisol regulation in the context of center-based child care by examining the impact of social context (large classroom vs. small group) and relationship quality with caregivers (conflict with mothers and teachers). We extend the research on children's physiologic stress system functioning in center-based child care by focusing on morning cortisol levels among young children living in poverty. While in high-quality center-based child care, children's cortisol levels decreased over the course of the morning—a result that contrasts with findings in previous research with middle-class children, for whom cortisol typically increased over the course of the day while attending center-based child care. Cortisol levels were further reduced when children were moved from a large classroom environment to a small group context. Relationship conflict with mothers and teachers moderated these effects. Children who had high conflict with their mother exhibited cortisol levels that remained higher (decreased less) over the course of the morning, and children who had high conflict with their teacher exhibited cortisol levels that remained higher (decreased less) in response to the small group context. These results indicate that high-quality child care has the potential to support reduced stress among children living in poverty, at least as indicated by adrenocortical activity.     

Transition to child care: associations with infant-mother attachment, infant negative emotion, and cortisol elevations

Seventy 15-month-old infants were studied at home before starting child care, during adaptation (mothers present) and separation (first 9 days without mothers) phases, and 5 months later. Security of infant-mother attachment was assessed before and 3 months after child care began. In the separation phase, salivary cortisol rose over the first 60 min following the mothers' departures to levels that were 75% to 100% higher than at home. Compared with insecure infants, secure infants had markedly lower cortisol levels during the adaptation phase and higher fuss and cry levels during the separation phase, and their fuss and cry levels were significantly correlated with their cortisol levels. Attachments remained secure or became secure if mothers spent more days adapting their children to child care.     

Children’s Cortisol and the Quality of Teacher–Child Relationships in Child Care

Teacher–child relationships were examined as predictors of cortisol change in preschool children. Saliva for assays was collected from one hundred and ninety‐one 4‐year‐olds (101 boys) in the mornings and afternoons on 2 days at child care, and before and after a series of challenging tasks and a teacher–child interaction session outside the classroom. Parents reported on children’s temperament, teachers and children reported on teacher–child relationship quality, and observers rated group‐level teacher insensitivity. Teacher‐reported relationship conflict predicted cortisol increases during teacher–child interaction and teacher‐reported overdependence predicted cortisol increases from morning to afternoon, even after controlling for individual teacher, child, and classroom characteristics. The findings extend earlier work by suggesting that cortisol change across the child‐care day is influenced by teacher–child relationship characteristics.     

Children''s Relationships with Caregivers: Mothers and Child Care Teachers

Infant, toddler, and preschool children's relationships with mothers and teachers were examined in this study. 110 children were observed with their mothers during child care arrivals and reunions. 403 children were observed with their teachers in child care. 3 categories of relationships were derived from these observations. Children in the secure relationship category experienced more teacher involvement than children in the avoidant or ambivalent relationship categories. Children in the ambivalent relationship categories experienced more teacher involvement than children in avoidant relationship categories. A subsample (n = 23) of children were seen with their mothers both during child care arrivals and reunions and in the Strange Situation. Relationship classifications were similar.     

Classroom Emotional Support predicts differences in preschool children's cortisol and alpha-amylase levels

Accumulating evidence suggests children enrolled in full-time child care often display afternoon elevations of the hormone cortisol, which is an indicator of stress. Recent advances in immunoassays allow for measurement of activity in the hypothalamic–pituitary–adrenal axis and the autonomic sympathetic nervous system from saliva, and measurement of both systems provides a more complete understanding of activity in the stress response system. This study is the first to examine both cortisol and alpha-amylase in children attending child care and focuses on the influences of specific indicators of classroom process quality. A diverse sample of 63 preschool children nested in 14 classrooms of varying quality participated in this study; child salivary cortisol and alpha-amylase were collected at six times over 2 days. Results indicate that children in classrooms with higher Emotional Support displayed a greater decline in cortisol from morning to afternoon. Further, children in classrooms with higher Emotional Support exhibited lower total alpha-amylase output while attending child care. Implications for professional development for early childhood teachers and measurement of classroom quality are discussed.     

Security of children's relationships with nonparental care providers: a meta-analysis

Meta-analysis aggregated results of 40 investigations involving 2,867 children who averaged 29.6 (SD = 8.6) months of age when their attachments to care providers were assessed using either the Strange Situation (SS) or the Attachment Q-Set (AQS). As opposed to parents, secure attachments to nonparental care providers were less likely (using SS) or equally likely (using AQS), respectively. Secure child-care provider attachments were more likely in home- than center-based care, when the children were assessed longer after enrollment, and when they were girls. Whereas care providers' sensitivity to individual children predicted attachment security only in the small groups that characterize home-based settings, group-related sensitivity was a reliable predictor of secure child-care provider attachment, especially in child care centers.     

Child care research: a clinical perspective

Two new studies on day care suggest that young children demonstrate increased aggressive behavior in relationship to time spent in day care and increases in cortisol levels in relationship to full-time, group-oriented, out-of-home care. These observations can be more fully understood in a clinical context that looks at individual differences in children, families, and child care environments. Factors likely to increase risk include sensory processing and modulation challenges; family stress; and lack of sensitive, nurturing interactions associated with less high-quality child care. Because 85% to 90% of current day care is not considered to be of high quality, individual families that can provide high-quality care need to explore carefully their options to see if it is possible to provide direct nurturing care for their infants and young children for at least half of the day.     

Salivary cortisol as a predictor of socioemotional adjustment during kindergarten: a prospective study

This study, based on a sample of 172 children, examined the relation between average afternoon salivary cortisol levels measured at home at age 4.5 years and socioemotional adjustment a year and a half later, as reported by mothers, fathers, and teachers. Cortisol levels were hypothesized to be positively associated with withdrawal-type behaviors (e.g., internalizing, social wariness) and inversely related to approach-type behaviors, both negative and positive (e.g., externalizing, school engagement). Higher cortisol levels at age 4.5 predicted more internalizing behavior and social wariness as reported by teachers and mothers, although child gender moderated the relation between cortisol and mother report measures. An inverse relation was found between boys' cortisol levels and father report of externalizing behavior. A marginal inverse relation was found between child cortisol levels and teacher report of school engagement. Behavior assessed concurrently with cortisol collection did not account for the prospective relations observed,suggesting that cortisol adds uniquely to an understanding of behavioral development.     

Child care effects on the development of toddlers with special needs

Among children with significant developmental delays or with biomedical risk factors for developing delays, those who were in nonmaternal child care (n=80) did not differ from children staying at home with their mothers (n=73) on mental, motor, or adaptive functioning; behavior problems; or attachment security at 30 months of age. An ecological model then was used to predict outcomes for children who had been observed in child care. After accounting for selection effects, child characteristics at 12 months of age, and quality of home caregiving, none of the child-care variables (age of entry, hours, quality) predicted mental or motor development or attachment security among children in nonmaternal care. Older age of entry into child care predicted greater behavioral organization during testing. Higher observed quality of caregiving in child care predicted better adaptive behavior. Additionally, quality of home caregiving predicted mental development, behavioral organization, and secure attachment to mother.     

Predicting infant outcome in families of employed and nonemployed mothers

Differences in infant outcome, predictor variables, and their relationships were explored as a function of maternal employment. Thirty 18-month-olds and their mothers were studied. Child intelligence, attachment security, and dependency were measured, as well as frequency of stressful events in the mother's life, quality of the parents' marital relationship, frequency of the mother's social contacts, and extent of the mother's emotional and parenting supports. Also included were the mother's ability to cope; satisfaction with emotional, parenting, and child care supports; and role satisfaction. For children of employed mothers, attachment and dependency were negatively correlated; securely attached children showed less dependency behavior. For employed mothers, satisfaction with child care and frequent social contacts predicted secure child attachment. Satisfaction with child care, role satisfaction, and ability to cope were strongly interrelated. For nonemployed mothers, maternal coping predicted attachment security, while frequent social contacts predicted greater child dependency. Predictors of child outcome were highly interrelated for nonemployed mothers, with satisfaction with emotional supports playing a pivotal role. These differences suggest that different models to predict infant outcome in employed and nonemployed mother families may be appropriate.     

Impacts of child care subsidies on family and child well-being

This cross-sectional study compares 52 working poor families receiving subsidies for child care with 50 demographically matched families drawn from the subsidy waiting lists across three sets of variables: (1) maternal employment and income, (2) child care, and (3) child well-being. Compared to mothers from waiting lists, mothers receiving subsidies for their child’s care were more likely to be employed, spent half as much of their income on child care, and were less likely to be very poor. Compared to children on waiting lists, children receiving subsidies for child care were more likely to be in a formal licensed child care center, have more stable care, and have mothers who were more satisfied with their child care arrangement.     

The ups and downs of child care: Variations in child care quality and exposure across the early years

There is considerable policy interest in understanding the role of child care in children’s development. Yet little research has examined whether individual children experience changes in child care quality across their early years, and less has included children’s varying levels of exposure to care in analyses of child care trajectories. Using data from the NICHD Study of Early Child Care, this study seeks to fill these gaps by studying the non-maternal care experiences of children whose mothers work at some point during their early years. We find that few of these children experience continuously high-quality care or continuously low-quality care. Instead, many children experience changes in child care quality. Children from low socioeconomic status families are more likely to experience low-quality care than children who are never poor, but children who are never poor are more likely to have child care histories that include both low- and high-quality care arrangements. We discuss the implications of our findings for studies of selection into low-quality child care arrangements and the effects of child care quality on children’s development.     

Morning-to-afternoon increases in cortisol concentrations for infants and toddlers at child care: age differences and behavioral correlates

This study examined salivary cortisol, a stress-sensitive hypothalamic-pituitary-adrenocortical (HPA) axis hormone in 20 infants (12 females; M age = 10.8 months) and 35 toddlers (20 females; M age = 29.7 months) in full-day, center-based child care. Samples were taken at approximately 10:00 a.m. and 4:00 p.m. at child care and at home. At child care, 35% of infants and 71% of toddlers showed a rise in cortisol across the day; at home, 71% of infants and 64% of toddlers showed decreases. Toddlers who played more with peers exhibited lower cortisol. Controlling age, teacher-reported social fearfulness predicted higher afternoon cortisol and larger cortisol increases across the day at child care. This phenomenon may indicate context-specific activation of the HPA axis early in life.     

Type of child care and children’s development at 54 months

The types of non-maternal child care received by more than 1000 U.S. children were examined from birth to 54 months and related to family selection factors and to child outcomes. Individual children tended to experience a variety of different types of care and not to fit into clear patterns of either stable care types or progressive patterns of movement from less structured to more highly structured care settings. Across the entire sample, however, hours in center care were higher in the preschool period than earlier, whereas hours in relative care remained stable and hours in child care homes decreased. Mothers who were single, those with more education and less traditional beliefs about child rearing, and families with higher incomes and fewer children in the household were more likely to use more hours of center care than other families; single mothers and those with fewer children also used more hours of care in child care homes. Minority families, those with low incomes, and mothers with less education and fewer children used more hours of relative care. With family selection factors and quality of child care controlled, only hours in center care across the time period from 3 to 54 months were related to child outcomes. Children who experienced more center care were reported by caregivers at 54 months to have somewhat higher externalizing behavior problem scores than other children, although these scores were not in the clinical or at-risk range. Center care hours were also related to cognitive and language outcomes, with more hours in infancy associated with lower preacademic test scores and more hours in the toddler period with higher language scores.     

Urban Zimbabwean mothers' choices and perceptions of care for young children

The opportunity for Black Zimbabwean children to attend preschool became widespread only after about 1987. The present study investigated the basis on which families select preschools and their perceptions of what constitutes quality preschool care. Of particular interest was whether school choice patterns are based on parent-centered goals (e.g., authority, prestige, convenience) or child-centered factors (e.g., safety, accelerated educational preparation, social development). Interviews were conducted with 51 working mothers of children ages 3-5 years in urban Zimbabwe (Harare and Bulawayo), 39 (77%) of whom were attending full-day preschool at the time of the survey. Overall, the four most frequently cited attributes of quality preschool care were good food or a balanced diet, qualified teachers, hygiene or cleanliness, and the physical structure. Mothers in the lowest income group placed greatest emphasis on good food, toys, facility, and school preparation, while higher-income mothers tended to prioritize hygiene and loving teachers. Preschool was viewed as part of the formal education process rather than as a form of child care. Female domestics or relatives were identified as the primary child care providers, even when the child was in preschool all day. Mothers expressed a strong preference for a child-centered approach to preschool education. Deliberate (social mobility), humanistic, and practical goals accounted for 80% of parental goal types. In general, mothers were most satisfied with preschool programs when they perceived a congruence between home and school in terms of their child's cultural development.     

Early Full-Time Day Care,Mother–Child Attachment,and Quality of the Home Environment in Chile: Preliminary Findings

Research Findings: Two longitudinal studies are reported examining the effects of full-time day care in Mapuche and non-Mapuche families in Chile. First, the Magellan-Leiden Childcare Study (MLCS) used a sample of 95 mothers with children younger than 1 year old (n = 36 in day care). Second, we partially cross-validated our results in a large and representative sample of 10,723 mothers and their children from the Chilean Encuesta Longitudinal de la Primera Infancia (Early Childhood Longitudinal Survey). In both studies, the quality of care for children provided at home was measured with the Home Observation for Measurement of the Environment. In the MLCS study, additional indicators of the mother–child relationship were measured. Day care was not negatively associated with the mother–child relationship and maternal sensitivity, compared to maternal care, or with the quality of the home environment. Positive changes in attachment security were found in Mapuche children who attended day care centers. Practice or Policy: We were able to confirm that type of care was not differentially associated with quality of the home environment.     

Caregiver–child verbal interactions in child care: A buffer against poor language outcomes when maternal language input is less

Recent research has suggested that high quality child care can buffer young children against poorer cognitive and language outcomes when they are at risk for poorer language and readiness skills. Most of this research measured the quality of parenting and the quality of the child care with global observational measures or rating scales that did not specify the exact maternal or caregiver behaviors that might be causally implicated in the buffering of these children from poor outcomes. The current study examined the actual language by the mother to her child in the home and the verbal interactions between the caregiver and child in the child care setting that might be implicated in the buffering effect of high quality childcare. The sample included 433 rural children from the Family Life Project who were in child care at 36 months of age. Even after controlling for a variety of covariates, including maternal education, income, race, child previous skill, child care type, the overall quality of the home and quality of the child care environment; observed positive caregiver–child verbal interactions in the child care setting interacted with the maternal language complexity and diversity in predicting children's language development. Caregiver–child positive verbal interactions appeared to buffer children from poor language outcomes concurrently and two years later if children came from homes where observed maternal language complexity and diversity during a picture book task was less.     

Placement in Foster Care Enhances Quality of Attachment Among Young Institutionalized Children

This study examined classifications of attachment in 42-month-old Romanian children ( N  = 169). Institutionalized since birth, children were assessed comprehensively, randomly assigned to care as usual (CAU) or to foster care, and compared to family-reared children. Attachment classifications for children in foster care were markedly different from those in the CAU. Importantly, children placed in foster care before 24 months were more likely to have secure attachments and if placed earlier were less likely to have disorganized or insecure-other attachments. Cognitive status predicted greater likelihood of organized attachment in the CAU and greater likelihood of secure attachment in the foster care and never-institutionalized groups. Foster care is an important intervention to reduce the adverse effects following early deprivation.     

Caregiver-mother partnership behavior and the quality of caregiver-child and mother-child interactions

Parent-caregiver communication, particularly concerning the behavior and experiences of the child, is a means of linking the home and child-care contexts of the child’s experience and enriching the caregiver’s and parent’s capacity to provide supportive and sensitive care of the child. The Parent-Caregiver Partnership Scale was administered to 53 mothers of 3-year-old children and to the children’s primary caregivers in child-care centers (n = 20) and less formal child-care settings (n = 33) to examine relations of mother-caregiver communication about the child to the quality of caregiver-child and mother-child interactions. More communication between mother and caregiver about the child as reported by both mothers and caregivers was significantly related to more sensitive and supportive caregiver-child interactions in child care, even after controlling for the mother’s and caregiver’s childrearing beliefs that were related to partnership behavior and the quality of child care. The quality of mother-child interaction was significantly associated with the mother’s communication with her child-care provider about her child. After controlling for maternal childrearing beliefs, mothers who engaged in more partnership behavior with their providers were more supportive and sensitive with their children.     

Children's wellbeing and cortisol levels in home-based and center-based childcare

The central question in this study is whether individual variability in children's cortisol levels and wellbeing at childcare can be explained by indices of quality of care and child characteristics. Participants were 71 children from childcare homes and 45 children from childcare centers in the age range of 20–40 months. In both types of settings equivalent measures and procedures were used. In home-based childcare, children experienced higher caregiver sensitivity, lower noise levels, and showed higher wellbeing compared to children in childcare centers. Caregiver sensitivity in home-based childcare – but not in center care – was positively associated with children's wellbeing. Additionally, children displayed higher cortisol levels at childcare than at home, irrespective of type of care. In home-based childcare, lower caregiver sensitivity was associated with higher total production of salivary cortisol during the day. In center-based childcare, lower global quality of care was associated with a rise in cortisol between 11 AM and 3 PM during the day. Quality of care is an important factor in young children's wellbeing and HPA stress reactivity.