The Relations between Infant Negative Reactivity, Non-Maternal Childcare, and Children's Interactions with Familiar and Unfamiliar Peers
Related Experiment Video
Updated: May 22, 2026

A Within-subjects Experimental Protocol to Assess the Effects of Social Input on Infant EEG
Published on: May 3, 2017
Alisa N Almas1, Deborah A Phillips, Heather A Henderson
1University of Maryland.
Insights
Childhood non-maternal care experiences impact peer interactions, especially for negatively reactive children. Positive peer engagement in childcare predicts less wariness toward unfamiliar peers later on.
Area of Science:
- Child Psychology
- Developmental Psychology
- Early Childhood Education
Background:
- Child temperament influences social development.
- Non-maternal childcare settings provide early peer interaction opportunities.
- Understanding how childcare experiences shape social behavior is crucial.
Purpose of the Study:
- To investigate the impact of non-maternal childcare on children's behavior toward unfamiliar peers.
- To examine if children's temperament moderates the effect of childcare on social behavior.
- To assess the relationship between peer interactions in childcare and later social wariness.
Main Methods:
- Longitudinal study observing children from 4 months to 36 months.
- Categorized participants by negative reactivity at 4 months and childcare experience.
- Assessed child wariness, dysregulation, and social engagement with peers at 24 and 36 months.
Main Results:
- For negatively reactive children, positive peer interactions during childcare at 24 months predicted lower wariness at 36 months.
- This predictive relationship was not found in children not classified as negatively reactive.
- Childcare's influence on social behavior appears dependent on individual temperament.
Conclusions:
- Non-maternal childcare effects on social behavior are moderated by child temperament.
- The quality of peer interactions within childcare settings is a significant factor.
- Early childhood experiences in care settings play a nuanced role in social development.
Abstract:
The present study examined the influence of children's experiences during non-maternal childcare on their behavior towards unfamiliar peers. Participants included children classified as negatively reactive at 4 months of age (n = 52) and children not negatively reactive (n = 61), who were further divided into those who experienced non-maternal care and those who did not. Children were observed during childcare at 24 months of age and in the laboratory with an unfamiliar peer at 24 and 36 months of age, where their wariness, dysregulation and social engagement were assessed. Within the negatively reactive childcare group, children's positive interactions with peers during childcare at 24 months predicted lower levels of wariness towards an unfamiliar peer at 36 months. This relation was not significant for children not classified as negatively reactive. The findings suggest that the influence of non-maternal childcare is dependent on a child's temperament and the nature of peer interactions during care.
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