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함옥경,유재복 한국간호과학회 2009 Asian Nursing Research Vol.3 No.1
Purpose This study examined the moderating and mediating effects of self-efficacy on the relationships between predictor variables (decisional balance and processes of change) and the outcome variable(stages of change) using the Transtheoretical Model. Design Cross-sectional data were collected from 147 current and former smokers at three vocational technical high schools in Korean metropolitan areas. Methods The survey instruments included decisional balance, self-efficacy, processes of change (behavioral and experiential), and stages of change. Regression analyses were used to identify the mediating effects of self-efficacy. Results Self-efficacy mediated the relationships of decisional balance and behavioral processes with stages of change, but not that of experiential processes with stages of change. Conclusions The study results will provide valuable information regarding how each predictor variable is connected and path through adoption of smoking cessation behavior. By understanding mechanisms of behavior change, health professionals could develop effective smoking cessation interventions with consideration of roles of self-efficacy in the smoking cessation behavior change. Purpose This study examined the moderating and mediating effects of self-efficacy on the relationships between predictor variables (decisional balance and processes of change) and the outcome variable(stages of change) using the Transtheoretical Model. Design Cross-sectional data were collected from 147 current and former smokers at three vocational technical high schools in Korean metropolitan areas. Methods The survey instruments included decisional balance, self-efficacy, processes of change (behavioral and experiential), and stages of change. Regression analyses were used to identify the mediating effects of self-efficacy. Results Self-efficacy mediated the relationships of decisional balance and behavioral processes with stages of change, but not that of experiential processes with stages of change. Conclusions The study results will provide valuable information regarding how each predictor variable is connected and path through adoption of smoking cessation behavior. By understanding mechanisms of behavior change, health professionals could develop effective smoking cessation interventions with consideration of roles of self-efficacy in the smoking cessation behavior change.
함옥경,성경미,이보경,최희원,임은옥 한국간호과학회 2016 Asian Nursing Research Vol.10 No.2
Purpose: The purpose was to evaluate the effects of a transtheoretical model (TTM) based exercise counseling offered with music skipping rope exercise on components of the TTM (stages of change, decisional balance, and self-efficacy), body mass index, glucose, and lipid profile of overweight/obese children in Korea. Methods: This study used a nonequivalent pretest and posttest experimental study design. A total of 75 overweight/obese children participated in the study. Eight sessions of exercise counseling combined with music skipping rope exercise for 12 weeks were offered for children in the experimental group, while one session of exercise counseling with music skipping rope exercise for 12 weeks was offered for children in the control group. Outcomes were measured at baseline, and 6 months after the intervention. Results: After the intervention, self-efficacy significantly improved among children in the experimental group (p = .049), while these children maintained their baseline BMI at 6-month follow-up (p > .05). Among children in the control group, BMI significantly increased (p < .05). Fasting blood sugar significantly increased for both groups after the intervention (p < .05). However, a greater increase was observed for the control group. Conclusions: Our study partially supports the hypothesis that a TTM-based exercise intervention is effective in maintaining BMI and improving self-efficacy of overweight/obese children. The TTM-based counseling combined with exercise classes has potential to control weight among overweight/obese children, while involvement of parents and children in the development of the theory-based intervention may generate further benefits regarding health and well-being of overweight/obese children.
유정순,함옥경,권명순 한국간호과학회 2022 Asian Nursing Research Vol.16 No.4
Purpose: The purpose of this article is to evaluate effects of self-determination theory-based on-campus and off-campus prevention programs on smartphone overdependence among university students. Methods: This was a pre-posttest quasi-experimental study with a nonequivalent control group (CG). Seventy-eight students were recruited as participants. They were allowed to choose either an experiment group (EG) or a CG. On-campus smartphone overdependence prevention program was provided to participants in experimental group 1 (EG1), while on-campus program combined with off-campus prevention camp was provided to those in experimental group 2 (EG2). Instruments used in this study included a smartphone overdependence self-diagnosis scale, a basic psychological needs scale, and a self-regulation ability scale. Data collection was performed at baseline, immediately after intervention, at 1 month and 3 months after intervention. Data were analyzed using mixed analysis of covariance. Focus group interview was performed for qualitative evaluation. Results: After the intervention, smartphone overdependence and basic psychological needs exhibited significant interactions between group and time. Smartphone overdependence scores decreased in EG1 and EG2 but increased in CG (F ¼ 4.56, p ¼ .001). Basic psychological needs improved in EG1 and EG2 but deteriorated in CG (F ¼ 5.04, p ¼ .009). Focus group interviews revealed that participants strived to control their smartphone usage through individual efforts and by interacting with new friends in college even after completing the program. Conclusion: In this study, on-campus only program and combined intervention of on- and off-campus programs were both effective in maintaining and managing smartphone use. However, participants perceived that the off-campus program provided an opportunity to apply the theory learned in oncampus to the real world.