Jeewon Cheong

Investigation of Mediational Processes Using Parallel Process Latent Growth Curve Modeling

This study investigated a method to evaluate mediational processes using latent growth curve modeling. The mediator and the outcome measured across multiple time points were viewed as 2 separate parallel processes. The mediational process was defined as the independent variable influencing the growth of the mediator, which, in turn, affected the growth of the outcome. To illustrate modeling procedures, empirical data from a longitudinal drug prevention program, Adolescents Training and Learning to Avoid Steroids, were used. The program effects on the growth of the mediator and the growth of the outcome were examined first in a 2-group structural equation model. The mediational process was then modeled and tested in a parallel process latent growth curve model by relating the prevention program condition, the growth rate factor of the mediator, and the growth rate factor of the outcome.

Effect of religion and religiosity on alcohol use in a college student sample

Two hundred and sixty-three alcohol using college students completed a questionnaire on their levels of alcohol use, problems with alcohol use, reasons for drinking, perceptions of control over drinking, impulsivity, venturesomeness, irrational beliefs, neuroticism, expectations of alcohol effects, depression, social norms, religious affiliation and intrinsic and extrinsic religiosity. Analyses of variance revealed that students with no religious affiliation reported significantly higher levels of drinking frequency and quantity, getting drunk, celebratory reasons for drinking and perceived drinking norms than those of either Catholic or Protestant religious affiliation, while no significant differences across groups were found for alcohol use problems. Protestants reported significantly higher levels of perceived drinking control than Catholics. Intrinsic religiosity, reflecting ones ego involvement with the tenets of ones religion, appeared to play a more important positive role over drinking behavior for Protestants than for Catholics.

Mediating mechanisms in a program to reduce intentions to use anabolic steroids and improve exercise self-efficacy and dietary behavior.

This study investigated the mediating mechanisms responsible for the effects of a program designed to reduce intentions to use anabolic steroids, improve nutrition, and increase strength training self-efficacy. Fifteen of 31 high school football teams (N = 1,506 players at baseline) in Oregon and Washington were assigned to receive the intervention. The multicomponent program addressed the social influences promoting ergogenic drug use and engaging students in healthy nutrition and strength training alternative behaviors. Although the results differed across the three dependent variables, the program appeared to work by changing team norms. Unlike prevention of other drugs, changes in knowledge and perceived severity were mediators of program effects in this study.

IRRATIONAL BELIEFS AND BEHAVIORAL MISREGULATION IN THE ROLE OF ALCOHOL ABUSE AMONG COLLEGE STUDENTS

Two hundred three alcohol-using college students completed a questionnaire on their levels of alcohol use, moderate to severe problems with alcohol use, and measures of life stress, impulsivity, compulsivity, irrational beliefs, and depression. While impulsivity significantly predicted both alcohol use and problems, stress, compulsivity, irrational beliefs, and depression were found to only be significant predictors of alcohol use problems. When irrational beliefs, impulsivity, and compulsivity were combined to form an “irrational coping” scale, this construct was found in multiple regression analyses to completely mediate the effect of stress on alcohol use problems, while depression was a partial mediator of this effect. Results were interpreted in terms of Rational Emotive Behavior Theory.

Personality predictors of religious orientation among protestant, catholic, and non-religious college students

Abstract A total of 249 college students completed a questionnaire regarding their Religious Affiliation, Intrinsic/extrinsic Religiosity, Impulsiveness, Venturesomeness, Irrational Beliefs, Neuroticism, Depression, Obsession Proneness, Irrational Beliefs, and Positive and Negative stress. The subsample used included 214 students who indicated they were non-religious, Protestant, or Catholic. Religious affiliation was found to be a moderator of the correlations of religious ego-involvement i.e. intrinsic religious motivation, with various personality variables. Intrinsic religiosity was found to be predictive of proneness to obsessive-compulsive cognitions/behaviors among Catholics, but not among non-religious and Protestant subjects. These results were discussed in terms of ego-involvement with the particular social norms espoused by different religious affiliations.

Effects of alcoholic beverage, instigation, and inhibition on expectancies of aggressive behavior

To investigate the role of alcohol expectancy, situational factors, and personality variables in predicting postdrinking aggression, two questionnaire studies were conducted. Subjects were randomly assigned to imagine themselves and their responses in a scenario situation, which was a combination of different beverages (soda vs. alcohol), instigation, and inhibition conditions. Both studies found significant 3-way interactions of personality aggression proneness (Buss-Durkee Hostility Inventory Assault scale) by beverage condition and by situational cue condition on subjects’ reported likelihood of engaging in aggressive behavior. Expected aggression was strongly associated with greater aggression proneness in the nonalcoholic condition when there was a situational cue (low inhibition in Study 1, high instigation in Study 2) invoking aggression, but not when the situational cue was absent. This relationship between aggression proneness and expected aggression, however, was attenuated in the alcoholic drink conditions in both studies. In general, it was found that the effect of alcohol on expected aggression was minor relative to the large and significant effects of aggression proneness, instigation, and inhibition.