• 산경연구논집
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• 제12권8호
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• pp.33-39
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• 2021

Purpose: The influence of age on time preference is not identified in the usual cross-sectional analysis. This study aims to test whether age affects time preference after controlling for the effects of individual heterogeneity including cohort effects. Research design, data and methodology: Drawing on a nationally representative panel dataset of Indonesians, we estimate the effects of age on time preference after controlling for unobserved individual heterogeneity as well as potential cohort effects. We measure time preference exploiting information on two sets of multiple price lists: one for a one-year delay, and the other for a five-year delay. Results: When we controlled for time-invariant individual characteristics, including birth cohort effects in a fixed effects model, the older men and women were more patient in a linear fashion, particularly when the delay was longer. To highlight the importance of controlling for individual fixed effects, we repeated the specification without controlling for individual fixed effects in OLS or censored maximum likelihood regression; we found no relation between age and impatience in men or women and for a one or five-year delay. Conclusions: The older men and women are more patient, and time preferences are correlated with unobserved individual heterogeneity.

• 대한가정학회지
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• 제46권4호
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• pp.15-24
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• 2008

The main purpose of this study was to examine the main and interaction effects of inhibition, day-care experiences and mothers' controlling child-rearing behavior on young children's social withdrawal in peer situations. A total of 62 young children(34 boys; 28girls) enrolled in day-care center and their mothers participated in this study. Data on child inhibition and parenting were gathered via questionnaires whereas the quality of day-care and social withdrawal were observed in the day-care center. As results, the quality of day-care and mothers' controlling child-rearing behavior were negatively related to social withdrawal. Further, both day-care entry age and the quality of day-care were served as an intervening variables between child inhibition and social withdrawal.

• 대한가정학회지
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• 제41권3호
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• pp.147-164
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• 2003

The purpose of this study was to investigate the effects of the family of origin variables on marital conflict. Seventy five married couples living together for less than 10 years were chosen from Seoul and Suwon cities. These subjects completed Korean Version of Family Adaptability and Cohesion Evaluation Scale Ⅱ, Individual Separation Scale, Family Rules Scale, Korea Certificated Egogram, and Marital Conflict Scale. The data were analyzed using descriptive statistics, paired-t test, and hierarchical regressions. The results were as follows: First, husbands and wives were different from each other in triangulation, family rules from family of origin and marital conflict. While husbands felt more strongly about their family rules than wives, wives perceived triangulation, and marital conflict higher than husbands. Second, husbands' controlling ego state, individuation, and family rules explained sixteen percents of husbands' marital conflict. Statistically speaking husbands' controlling ego state positively influenced on husbands' marital conflict. However, both of husbands' and wives' controlling ego states explained twelve percents of wives' marital conflict, and husbands' controlling ego state was statistically significant.

• 한국과학교육학회지
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• 제22권3호
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• pp.571-585
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• 2002

형식적인 사고를 가능하게 하는 논리적 사고력의 형성 가능성에 대한 기초적인 연구 활동의 하나로, '생각하는 과학' 프로그램에 있는 변인통제 활동의 학습효과를 조사하였다. 초등학교 5학년 306명의 학생들이 연구에 참가하였으며, 같은 분량의 사간에 실험반에서는 교육과정에 따른 과학 교과 수업과 변인통제 활동을 병행하였고, 통제반에서는 과학교과 수업만을 수행하였다. 연구 초기에 논리적 사고력 검사와 변인통제 검사를 이용하여 사전 상태를 비교하고, 한 학기 동안 변인통제 활동 6개를 12차시에 걸쳐 진행하면서, 처치별, 성별, 인지수준별 학습효과를 알아보았다. 처치활동은 초등학교 5학년 학생들의 변인통제능력 신장에 매우 효과적인 것으로 나타났다. 변인통제능력의 하위요소별로 분석한 결과, 특별히 실험조건 통제, 변인측정과 결과변인 학습에 매우 효과적인 것으로 나타났고, 원인변인 학습효과도 다소 있는 것으로 나타났다. 남 여학생들의 사전 변인통제능력을 비교한 결과 여학생들이 월등히 높은 점수를 보였다. 변인통제 학습 후 남 여학생들 모두에게 거의 같은 정도로 우수한 학습효과가 나타났으며, 통제반에서 차이가 더 벌어진 반면, 실험반에서는 그 격차가 좁혀졌다. 학생들의 인지수준에 따란 변인통제 학습효과를 분석한 결과, 모든 인지수준에서 실험반 학생들의 변인 통제능력이 상당히 향상되었다. 특히 전기 구체적 조작기, 중기 구체적 조작기와 후기 구체적 조작기에 있는 학생들의 변인통제능력은 크게 향상되었다. 변인판별 능력은 전기 구체적 조작기, 중기 구체적 조작기와 후기 구체적 조작기에 있는 학생들이 거의 같은 정도의 우수한 발전을 보여주었으며, 실험설계 능력은 모든 수준에서 상당히 향상되었다. '생각하는 과학'의 변인통제 활동과 같은 형태의 학습내용을 현행 학교 과학교육에 적극적으로 도입해볼 필요가 있다.

• 한국생활과학회지
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• 제13권1호
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• pp.63-73
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• 2004

This study examined the effects of perceived marriage conflict, mother's parenting and child's behavior problems on the child abuse. The sample consisted of 428 filth and sixth grade children. Statistical methods used for data analysis were Cronbach's alpha, factor analysis, Pearson's correlation, multiple regression and path analysis. Several major results found from the analysis were as follows. First, the more the child perceived the parent's marriage conflict, the mother's parenting was controlling and the child's behavior was externalized, the more the child was subjected to the physical and verbal abuses. The mother's controlling parenting behavior had a first direct influence on the physical abuse, and the marriage conflict on the verbal abuse. Second, the marriage conflict had direct and indirect positive effects on the physical and verbal abuses through the mother's affective and controlling parenting and the child's externalizing behavior problems. Third, the mother's controlling parenting had direct and indirect positive effects on the physical and verbal abuses through the child's externalizing behavior problems and. And mother's affective parenting had a direct negative effect on the physical and verbal abuses. Fourth, child's externalizing behavior problems had a direct positive effect on the physical and verbal abuse. Fifth, child's sex had an indirect effect on the physical and verbal abuses through mother's affective and controlling parenting. That is, boys were more exposed to the physical and verbal abuses, because mothers more controlled and less affected boys than girls.

• 한국보육지원학회지
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• 제16권2호
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• pp.161-178
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• 2020

Objective: The purpose of this study was to investigate the effects of parenting stress of mothers, warm parenting behaviors and controlling parenting behaviors on children's social competence. Methods: A total of 1515 mothers of young children(780 boys, 735 girls), who had participated in wave 7 of the Panel Study on Korean Children(PSKC), answered the questionnaires. The questionnaires included items about mothers' parenting stress, parenting behaviors, and their children's social competence. The collected data were analyzed using descriptive statistics, Pearson's correlation and structural equation models using SPSS 23 and AMOS 22. Results: First, there was a significantly negative correlation between mothers' parenting stress and children's social competence. Also, there was a significantly positive correlation between mothers' warm parenting behaviors and controlling parenting behavior and children's social competence. Second, mothers' parenting stress showed a direct negative effect on children's social competence. Third, mothers' warm parenting behaviors and controlling parenting behaviors showed partial mediating roles in the relationship between mothers' parenting stress and children's social competence. Conclusion/Implications: In order to develop positive social competence of children, programs and social support are needed to reduce mothers'parenting stress and induce positive parenting behaviors.

• 유통과학연구
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• 제15권4호
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• pp.5-13
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• 2017

Purpose - This research analyzes the effects of Korean family ownership characteristics on firm value. The positive and negative effects of family ownership on Korean firm value were analyzed. If negative effects are evident, this research explores the factors that cause a decrease in firm value. Research design, data, and methodology - The study examined a total of 5,743 companies listed on the Korea Exchange from the period 2002 to 2012 using a panel data regression analysis. Result - An empirical analysis suggests that Korean family ownership diminishes firm value. Korean family firm value has been reduced when controlling shareholders are participated in management and pursue excessive wages, or make the management entrenchment effects associated with ownership-control disparity. When the controlling shareholders of family firms have increasing control rights over the shareholders' general meeting and the directors' board, the agency costs associated with seeking increasing executive wages or private benefits reduce firm value. Conclusions - This study has significance because it reveals the negative effect of family ownership in Korea on firm value. These negative effects can be the result of agency problems from controlling family shareholders seeking excessive wages or ownership-control disparity.

• Educational Technology International
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• 제21권2호
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• pp.125-153
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• 2020

The advancement of virtual reality technology offers various locomotion options that support users' navigation behaviors in a virtual reality environment. This study was aimed at examining the effects of two navigation methods-joystick-controlling and walking-around-on users' perceived usability, behavioral engagement, and virtual presence. Fifty South Korean college students were recruited in the study, and they were assigned randomly to one of the two navigation conditions. Participants from each group were asked to observe a 3D object and complete the surveys. They were then asked to repeat the procedure with a 2D image. Using repeated-measures ANOVAs and MANOVA, we found that users using joystick-controlling reported higher usability and showed superior performance to the walking-around group on two tasks. Participants reported a higher behavioral engagement when observing the 2D image. Besides, they perceived a significantly higher virtual presence when observing the 2D image. Finally, we discussed the implications of the findings for the navigation method design.

• 대한가정학회지
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• 제49권5호
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• pp.59-70
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• 2011

The purpose of this study was to examine the effects of family economic distress, paternal depression, marital relationship, and controlling parenting style on behavioral problems in young children and to present a program for their reduction. The participants of this study were 344 fathers, whose young children were attending kindergartens located in Cheongju city. Data were analyzed using descriptive statistics, frequency, factor analysis, reliability analysis, and Pearson's productive correlation, t and F-tests via the SPSS 12.0 program, with the path model analyzed using the AMOS 7.0 program. There were six paths where family economic distress, mediated by paternal depression, marital relationship, controlling parenting style, had effects on the behavioral problems in young children. However, the path where family economic distress had an indirect effect on the behavioral problems in young children via paternal depression and marital relationship appeared to be the most influential. Also, paternal depression appeared to have the most impact on young children's behavioral problems.

• 접착 및 계면
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• 제4권3호
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• pp.9-13
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• 2003

본 연구에서는 점착제의 유지력 개선과 pH 조절을 위해 각각 첨가해 주는 가교제와 pH 조절제의 종류 및 첨가량이 수용성 아크릴 점착제의 점착 물성 및 수용성에 미치는 효과를 알아보기 위하여 중합된 점착 시료에 여러 가지의 가교제와 pH 조절를 첨가해 준 후 초기점착력, 유지력 및 점착력 등의 점착 물성과 수용성을 측정하였다. 가교제를 0.2 wt% 미만 첨가해 주었을 때, 초기 점착력은 감소하였고 유지력과 점착력은 증가하였다. 그러나 0.2 wt% 이상 첨가해 주었을 때는 초기 점착력은 증가하였지만 유지력과 점착력은 감소하는 결과를 보였다. 또한 pH 조절제를 첨가해 주었을 때 pH 조절제의 농도가 증가함에 따라 초기점착력과 수용성은 감소하였고 점착력과 유지력은 증가하였으며, LiOH, KOH, NaOH 순으로 점착 물성과 수용성에 미치는 영향이 큰 것으로 나타났다.