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The Efficiency of Infants' Exploratory Play Is Related to Longer-Term Cognitive Development
Paul Muentener1, Elise Herrig2, Laura Schulz2
1Department of Psychology, Tufts University, Medford, MA, United States.
Insights
Infants' efficiency in exploratory play remained stable over time. This efficiency predicts vocabulary size and later IQ scores, highlighting its importance for cognitive development.
Area of Science:
- Developmental psychology
- Cognitive science
- Infant research
Background:
- Exploratory play is crucial for infant development.
- Understanding the stability of play behaviors and their predictive power is essential for early identification of developmental trajectories.
Purpose of the Study:
- To examine the stability of exploratory play behaviors in infancy.
- To investigate the relationship between infant exploratory play and cognitive development in early childhood.
Main Methods:
- Longitudinal study tracking 130 infants from 5-19 months over 9 months.
- Assessed exploratory play using measures like attention to novelty and efficiency.
- Cognitive development assessed at multiple time points, including age three for a subset.
Main Results:
- Efficiency of exploration was the only stable measure of exploratory play across infancy.
- Higher efficiency scores predicted larger vocabulary size and distinguished at-risk from not-at-risk infants.
- Efficiency of exploration at age three correlated with higher IQ scores.
Conclusions:
- The efficiency of exploratory play in infancy is a stable and informative measure.
- Infant play efficiency is a significant predictor of cognitive development and IQ.
- This measure can aid in identifying infants at risk for developmental delays.
Abstract:
In this longitudinal study we examined the stability of exploratory play in infancy and its relation to cognitive development in early childhood. We assessed infants' (N = 130, mean age at enrollment = 12.02 months, SD = 3.5 months; range: 5-19 months) exploratory play four times over 9 months. Exploratory play was indexed by infants' attention to novelty, inductive generalizations, efficiency of exploration, face preferences, and imitative learning. We assessed cognitive development at the fourth visit for the full sample, and again at age three for a subset of the sample (n = 38). The only measure that was stable over infancy was the efficiency of exploration. Additionally, infants' efficiency score predicted vocabulary size and distinguished at-risk infants recruited from early intervention sites from those not at risk. Follow-up analyses at age three provided additional evidence for the importance of the efficiency measure: more efficient exploration was correlated with higher IQ scores. These results suggest that the efficiency of infants' exploratory play can be informative about longer-term cognitive development.