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The Association Between Toddlerhood Self-Control and Later Externalizing Problems.

Soo Hyun Rhee1,2, Naomi P Friedman3,4, Ashley K Smith Watts5

  • 1Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, 80309-0447, USA. soo.rhee@colorado.edu.

Behavior Genetics
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Summary
This summary is machine-generated.

Toddler self-control development predicts fewer teacher-reported externalizing problems later in childhood. However, this association is explained by disregard for others, not self-control alone.

Keywords:
Antisocial behaviorBehavioral geneticsConduct disorderExternalizing problemsSelf-control

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Area of Science:

  • Developmental Psychology
  • Behavioral Genetics

Background:

  • Low self-control is linked to adverse adult outcomes.
  • Childhood externalizing problems may underlie this association.

Purpose of the Study:

  • Examine the link between toddler self-control and later externalizing problems.
  • Investigate the role of disregard for others and genetic/environmental factors.

Main Methods:

  • Longitudinal study of self-control in toddlerhood (14-36 months).
  • Assessed externalizing problems via parent, teacher, and self-report from ages 4 to 17.
  • Utilized genetically informative analyses.

Main Results:

  • The *slope* of self-control, not its initial level, predicted teacher-reported externalizing problems.
  • This predictive link disappeared when controlling for disregard for others.
  • Genetic analyses indicated shared genetic and environmental influences.

Conclusions:

  • Self-control's developmental trajectory, not just its presence, matters for externalizing problems.
  • Disregard for others is a key mediator, challenging self-control as the sole primary predictor.
  • Both genetic and shared environmental factors contribute to the relationship.