• Korean Journal of Community Nutrition
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• v.15 no.5
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• pp.582-592
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• 2010

The purpose of this study was to determine the factors related to eating breakfast for middle and high school students in Seoul using the Theory of Planned Behavior. Out of 2,280 questionnaires distributed to 22 schools, 2,060 were returned (90.4% response rate) and 1,899 were analyzed (83.3% analysis rate). Gender, self-perceived household income level and mother's working status were examined as demographic factors. "Attitude", "Subjective norm", "Perceived difficulty in access to breakfast", "Perceived time restriction" and "Self restriction to breakfast" were extracted as psychosocial factors as the results of factor analysis and reliability test using 17 items. In case of middle school students, boys were more likely to skip breakfast than girls. The students perceiving their household income level "low or middle low" were more likely to skip breakfast than those who perceived their household income level "high or middle high". The students whose mother had a job tended to skip breakfast than those whose mother had no job. In case of high school students, the students perceiving their household income level "low or middle low" tended to skip breakfast than those perceiving their household income level "high or middle high". The results of analysis of variance, all the psychosocial factors examined in this study-"Attitude", "Subjective norm", "Perceived difficulty in access to breakfast", "Perceived time restriction" and "Self restriction to breakfast"- were related to the frequencies of eating breakfast during weekdays in both the middle and high school students.

• Korean Journal of Cognitive Science
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• v.30 no.1
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• pp.51-83
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• 2019

Delay of immediate gains/losses brings on additional gaines/losses as much as waiting period. However, there are individual difference in evaluating the value of delayed time discounting on the person. In this study, to investigates the individual differences about valuating the delayed time, it is ascertained the correlation between decisions from intertemporal choice task and individual differences of risk taking/perception, emotion, regulatory focus, and HPSP and BELT, subjective period measuring task. In Addition, it is analyzed the individual differences after classifying good/bad performer of intertemporal tasks and person who perceive long/short about the future periods. As a result, good performers of intertemporal task have high openness and perceive longer about 12 hours, 15 days, 6 months and 5 years. Reconstruction about future temporal length plays an important role on intertemporal task, and it is discussed about necessity of follow up study.