Related Experiment Video
Updated: Jul 21, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
The Effects of Poor Neonatal Health on Children's Cognitive Development
David Figlio1, Jonathan Guryan1, Krzysztof Karbownik1
1Northwestern University, Evanston, IL.
Insights
High birth weight is linked to better cognitive development throughout schooling. These early health impacts on cognitive skills are established early in life and remain consistent across diverse backgrounds and school qualities.
Area of Science:
- Developmental Psychology
- Public Health
- Educational Research
Background:
- Understanding the long-term impact of early health on cognitive development is crucial for interventions.
- Existing research often lacks comprehensive longitudinal data linking birth characteristics to later-life outcomes.
Purpose of the Study:
- To investigate the relationship between birth weight and cognitive development using a novel, large-scale dataset.
- To determine if the effects of early health on cognition persist throughout a child's school career.
Main Methods:
- Utilized a unique dataset merging birth and school records for Florida children (1992-2002).
- Employed statistical models, including singleton, twin, and sibling fixed effects, to control for genetic and environmental factors.
Main Results:
- The positive association between birth weight and cognitive development remains consistent from early childhood through school.
- These effects are similar across varied socioeconomic and family backgrounds.
- Cognitive development outcomes related to birth weight are not significantly influenced by school quality.
Conclusions:
- Early health, specifically birth weight, has a lasting impact on cognitive development that is established early in life.
- Interventions aimed at improving early health may have profound and enduring effects on cognitive outcomes.
- The findings underscore the critical importance of prenatal and early childhood health for long-term cognitive potential.
Abstract:
We make use of a new data resource--merged birth and school records for all children born in Florida from 1992 to 2002--to study the relationship between birth weight and cognitive development. Using singletons as well as twin and sibling fixed effects models, we find that the effects of early health on cognitive development are essentially constant through the school career; that these effects are similar across a wide range of family backgrounds; and that they are invariant to measures of school quality. We conclude that the effects of early health on adult outcomes are therefore set very early.
Related Concept Videos
Language and Cognition
Biological Influences on Intelligence
Environmental Influences on Intelligence
The Nativist Approach
Information Processing Approach
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.

