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Peer influence and selection effects on adolescent smoking.

Myong-Hyun Go1, Harold D Green, David P Kennedy

  • 1RAND Corporation, Santa Monica, CA 90407, USA.

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Adolescent smoking is influenced by friends, but teens also choose friends with similar habits. This study suggests peer influence and selection effects on teen smoking may be weaker than previously thought.

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Area of Science:

  • Social psychology
  • Adolescent health
  • Behavioral science

Background:

  • Peer influence is often cited for adolescent smoking, but friend selection based on similar behaviors is also a factor.
  • Previous research suggested peer influence and selection effects equally contribute to adolescent smoking homogeneity.
  • This study aimed to partially replicate these findings.

Purpose of the Study:

  • To investigate the relative contributions of peer influence and selection in adolescent smoking.
  • To examine how friendship dynamics impact smoking initiation and cessation among adolescents.

Main Methods:

  • Utilized data from 1223 participants in the National Longitudinal Study of Adolescent Health.
  • Employed spectral decomposition to identify friendship cliques for analysis.
  • Examined influence and selection effects on smoking over a one-year period.

Main Results:

  • Adolescents were more likely to start smoking if in a smoking group and quit if in a non-smoking group, indicating influence.
  • Adolescents changing groups tended to select new groups with similar smoking behaviors, showing selection.
  • Both influence and selection effects were observed.

Conclusions:

  • Findings generally replicate earlier research on group analyses of adolescent smoking.
  • However, the study suggests peer influence and selection effects on adolescent smoking may be weaker than previously assumed.