Background: Evidence suggests that health promotion interventions that are based on behavioral theories are more effective than those lacking a theoretical base. Recent studies have begun to look at the relationship between social cognitive variables and physical activity in varied populations. Purpose: The purpose of this study is to determine…

This study consists of three sub-studies. Sub-study 1 and 2 attempted to incorporate environmental variables as precursor background variables of the theory of planned behavior (TPB) to predict quitting-related intentions among Texas adult smokers and university student smokers, respectively. Sub-study 1 and 2 analyzed different data sets and were…

Indicates that the "conduct disorder" dimension of children's behavior problems is significantly predicted by activity level in combination with impulsivity, while the "inadequacy-immaturity" dimension is predicted by activity level and soft signs of neurological damage. Finds that "personality disorder" is uncorrelated with the three predictor…