Susan C. Duncan

Adolescent problem behavior: the influence of parents and peers.

This paper presents evidence that the Patterson et al. (1992) model of development of antisocial behavior in children generalizes to the development of a wide array of problem behaviors during later adolescence and that youth antisocial behavior, high-risk sexual behavior, academic failure and substance use form a single problem behavior construct. Structural equation modeling methods were applied to 24-month longitudinal data from 204 adolescents and parents. The model fit the data well, accounting for 52% of the variance in adolescent problem behavior. Specifically, families experiencing high levels of conflict were more likely to have low levels of parent-child involvement. These family conditions were related to poor parental monitoring and association with deviant peers one year later. Poor parental monitoring and associations with deviant peers were strong proximal predictors of engagement in an array of problem behaviors at two-year follow-up.

Sources and types of social support in youth physical activity

This study examines the influence of sources and types of social support on youth physical activity. The sample comprised 372 youth (mean age=12.05 years, SD=1.63). Youth were 76% White and 50.3% female. The annual household income for the sample was 20% under

An introduction to latent growth curve modeling

30,000; 30%

Contributions of the social context to the development of adolescent substance use: a multivariate latent growth modeling approach

30,000-

A multilevel analysis of neighborhood context and youth alcohol and drug problems.

49,999; 25%

The consistency of family and peer influences on the development of substance use in adolescence

50,000-

Adolescent modeling of parent substance use: The moderating effect of the relationship with the parent.

69,999; 13%

An Evaluation of the Effects of Tai Chi Exercise on Physical Function Among Older Persons: A Randomized Controlled Trial

70,000-

Adolescent alcohol use development and young adult outcomes

89,999; and 12%

Modeling the processes of development via latent variable growth curve methodology

90,000 and above. Results revealed that friends who support and watch youth engage in activities are significantly and positively related to youth physical activity. Significant correlations existed among the type factors. Future research should examine the sources and nature of support and the mechanisms through which social support influences youth physical activity.