Latent growth curve modeling of adolescent physical activity: Testing parallel process and mediation models

Scott C. Roesch, Gregory J. Norman, Marc A. Adams, Jacqueline Kerr, James F. Sallis, Sherry Ryan, Karen J. Calfas, Kevin Patrick

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Data from a randomized clinical trial were used to examine the extent to which a health promotion intervention affected changes in psychosocial constructs and if so whether these in turn explained changes in physical activity (PA). PA and psychosocial data on 878 adolescents (ages 11-15) recruited through primary care providers (age M = 12.7 years, SD = 1.3; 58% white non-Hispanic) were measured at baseline, six and 12 months. Parallel process latent growth curve analyses found positive relationships between the growth trajectories of behavior change strategies, self-efficacy, family support, peer support and the growth trajectory of PA. However, mediation analyses did not reveal statistically significant intervention-mediated effects.

Original languageEnglish (US)
Pages (from-to)313-325
Number of pages13
JournalJournal of Health Psychology
Volume14
Issue number2
DOIs
StatePublished - Mar 1 2009
Externally publishedYes

Keywords

  • Growth curves
  • Physical activity
  • Randomized clinical trial

ASJC Scopus subject areas

  • Applied Psychology

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