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Published on: July 12, 2024
Early childcare, executive functioning, and the moderating role of early stress physiology
Daniel Berry1, Clancy Blair2, Alexandra Ursache2
1Department of Educational Psychology.
Insights
High-quality childcare supports children's executive functioning (EF) development. More hours in care benefited only children with lower stress physiology, suggesting personalized approaches to early childhood education are key.
Area of Science:
- Child Development
- Developmental Psychology
- Early Childhood Education
Background:
- Childhood executive functioning (EF) is crucial for development.
- Childcare experiences may influence EF, but normative effects are unclear.
- Individual differences in physiological stress responses may shape children's experiences in care.
Purpose of the Study:
- To investigate how childcare quantity, quality, and type in early life predict executive functioning (EF) in children.
- To examine if children's basal cortisol levels (indicating stress physiology) moderate the association between childcare experiences and EF.
- To explore the relationship between early childcare and executive functions in a population-based sample.
Main Methods:
- Analysis of a large population-based sample of predominantly low-income rural families.
- Assessment of childcare experiences (quantity, quality, type) during the first 3 years of life.
- Measurement of children's basal cortisol levels in infancy and toddlerhood as an indicator of hypothalamic pituitary adrenal (HPA) axis activity.
Main Results:
- Higher quality childcare was associated with better EF at 48 months, independent of quantity or type.
- Increased hours in childcare per week positively predicted EF, but only for children with low basal cortisol levels at 7 or 24 months.
- No association was found between attending center-based care and executive functioning.
Conclusions:
- Childcare quality is a significant predictor of executive functioning.
- The impact of childcare quantity on EF may depend on a child's individual stress physiology.
- Findings highlight the nuanced role of early care environments in shaping cognitive development.
Abstract:
Intervention studies indicate that children's childcare experiences can be leveraged to support the development of executive functioning (EF). The role of more normative childcare experiences is less clear. Increasingly, theory and empirical work suggest that individual differences in children's physiological stress systems may be associated with meaningful differences in the way they experience these early environments. Using data from a large population-based sample of predominantly low-income rural families, we tested the degree to which children's childcare experiences--quantity, quality, and type--in the first 3 years of life predicted emerging EF. Moreover, we examined whether these effects varied as a function of children's basal cortisol levels in infancy and toddlerhood--an indicator of hypothalamic pituitary adrenal (HPA) axis stress physiology. Our results showed that higher quality care predicted more effective EF at 48 months, irrespective of quantity or type. This relation did not vary as a function of children's early cortisol levels. Attending greater hours of care per week was also related to EF; however--consistent with theory--the positive association between spending more time in childcare and more positive EF extended only to children with low levels of basal cortisol at 7 or 24 months of age. Attending center-based care was unassociated with EF.
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