본 연구에서는 건강행동 준수를 예측할 수 있는 계획된 행동이론(TPB) 모형을 검증하고, 그 모형에서 낙관적 편향과 지연할인 인식의 역할을 확인하였다. 연구 참여자들은 357명의 남녀 성인이었으며, 연령은 18세에서 76세까지 분포되어 있었다. 계획된 행동이론 변인들과 낙관적 편향은 선행연구들에서 사용된 문항들을 연구 목적에 맞게 수정하고 보완하여 측정하였으며, 지연할인 인식도 건강행동을 준수했을 때 나나타나는 효과가 지연되어 나타날 것이라고 인식하는 정도를 묻는 문항들로 측정하였다. 분석 결과, 태도와 행동 간의 직접 경로와 지각된 행동통제력과 행동 간의 직접 경로가 포함된 경쟁모형이 건강행동 준수에 대한 계획된 행동이론 모형으로 채택되었다. 그리고 이 모형은 각각 낙관적 편향과 지연할인 인식에 의해 조절되는 것으로 나타났다. 본 연구의 결과는 건강행동 준수에 관한 추후 연구를 위한 지식과 국민의 건강을 증진하고자 하는 의료인이나 건강전문가를 위한 유용한 임상적 정보를 제공한다.
This study verified a theory of planned behavior (TPB) model to predict the adherence of health behavior and identified the role of the optimistic bias or delay discounting in that model. Subjects were 357 Korean male and female adults whose ages ranged from 18 to 76. The TPB factors and their optimistic bias were measured by modified items used in the previous studies, and some items were developed to measure delay discounting. An alternative TPB model, including a direct path from attitude to behavior and a direct path from the perceived behavioral control to behavior was validated for the adherence of health behavior. This model was found to be moderated by optimistic bias and delay discounting each. Findings of this study should provide useful information and knowledge for future research and for medical or health professionals who wanting to improve the adherence of health behavior of people.
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