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Early pubertal timing and girls' problem behavior: integrating two hypotheses.

Håkan Stattin1, Margaret Kerr, Therése Skoog

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Area of Science:

  • Developmental Psychology
  • Adolescent Health
  • Sociology

Background:

  • Early pubertal timing in girls is associated with increased behavioral problems like delinquency and substance use.
  • Existing theories often focus on peer relationships or environmental contexts, but not their interaction.

Purpose of the Study:

  • To integrate peer-socialization and contextual-amplification hypotheses into a unified framework.
  • To explain how social contexts influence the link between early pubertal timing and externalizing behaviors in girls.

Main Methods:

  • Two studies were conducted in Sweden, employing cross-sectional and longitudinal designs.
  • Data included peer relationships (age, gender, norm-breaking behavior) and contextual factors (school vs. leisure settings).
  • Statistical analyses examined the interaction between pubertal timing, peer associations, and problem behaviors.

Main Results:

  • Early pubertal timing correlated with older, norm-breaking friends outside of school, but not within school.
  • Delinquency was most strongly linked to early pubertal timing for girls in specific leisure settings with older peers and boys.
  • Results supported the hypothesis that context amplifies peer-socialization effects.

Conclusions:

  • The integrated peer-socialization/contextual-amplification model effectively explains the link between early pubertal timing and external problem behavior.
  • Contextual factors play a crucial role in moderating the influence of peer relationships on adolescent girls' behavior.
  • Interventions should consider both peer dynamics and environmental influences when addressing behavioral issues in early-developing girls.