• Human Ecology Research
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• 제58권4호
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• pp.601-611
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• 2020

This study examined the effects of negative parenting attitudes on adolescents' academic helplessness through the mediating effects of social withdrawal and smartphone dependency. Data from the panel study of Korean Children and Youth Panel Survey 2018 (KCYPS 2018) collected by the National Youth Policy Institute (NYPI) was used to examine the research model. The subjects of the study consisted of 2,541 first grade middle school students (1,375 boys and 1,166 girls). Confirmatory factor analysis [CFA], structural equation modeling [SEM], and bootstrapping analysis were conducted by means of SPSS 25.0, AMOS 25.0, and Hayes's PROCESS programs to examine the serial multiple mediating effects. The study results were as follows. First, negative parenting attitude had a direct effect on adolescents' academic helplessness. This implies that adolescents who perceive their parents' attitudes to be high in coercive, rejective, and chaotic levels indicate that they can easily get exhausted in academic settings. Second, negative parenting attitudes had an indirect effect on adolescents' academic helplessness through social withdrawal and smartphone dependency. The results suggest that a high level of negative parenting attitude leads to higher social withdrawal and smartphone dependency that influences adolescents' academic helplessness.

• Journal of Sport and Applied Science
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• 제3권2호
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• pp.17-27
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• 2019

Purpose: This study is to conduct usability evaluations from the perspective of developing comfort-shoes for the middle-aged and elderly to identify key factors and derive implications for optimal comfort-shoes production. Research design, data, and methodology: A total of 10 middle-aged and elderly women in their 50s and 60s were selected as eligible for the rescue. For data collection, the study was conducted in a Gang Survey, where pre-explanations, shoes test, and interviews were conducted. The collected data were analyzed in a total of four stages. In step 1, the contents obtained through interviews with the subjects were recorded in text, organized and analyzed systematically, and in step 2, unnecessary vocabulary, sentences, and overlapping opinions were eliminated. In step 3, we classified areas around key functions and carried out categorization tasks. Finally, in Step 4, the results and implications of the study were derived by classifying each usability evaluation shoe as positive and negative text around categorized data. Results: There are a total of seven factors for comfort-shoes usability evaluation, which are categorized as cushion, fitting, stability, flexibility, lightweight, comfort, and pressure. Positive/negative factors for the derived usability evaluation factors were shown in the form of a positive-centered, negative-centered, and positive-mixed mix for each of the four products. Positive-focused products are VA products, which are seven times more positive than negative factors. Negative-centered products are CL and SA products, which are five times more negative than positive factors. Positive mixing was a CA product with a ratio of 1:1. Text-based usability evaluations allow us to proceed with analysis based on more scientific data rather than simply listening to opinions and judging by comments. Conclusions: The study discussed implications of developing comfort-shoes for middle-aged consumers and future directions were discussed.

• 정보보호학회논문지
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• 제16권6호
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• pp.111-121
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• 2006

인터넷이 빠르게 성장함에 따라 네트워크 공격기법이 변화되고 새로운 공격 형태가 나타나고 있다. 네트워크상에서 알려진 침입의 탐지는 효율적으로 수행되고 있으나 알려지지 않은 침입에 대해서는 오탐지(false negative)나 과탐지(false positive)가 너무 높게 나타난다. 또한, 네트워크상에서 지속적으로 처리되는 대량의 패킷에 대하여 실시간적인 탐지와 새로운 침입 유형에 대한 대응방법과 인지능력에 한계가 있다. 따라서 다양한 대량의 트래픽에 대해서 탐지율을 높이고 과탐지를 감소할 수 있는 방법이 필요하다. 본 논문에서는 네트워크 기반의 이상 침입 탐지 시스템에서 과탐지를 감소하고, 침입 탐지 능력을 향상시키기 위하여 다차원 연관 규칙 마이닝과 수정된 부정 선택 알고리즘(Negative Selection Algorithm)을 결합한 다중 레벨 이상 침입 탐지 기술을 제안한다. 제안한 알고리즘의 성능 평가를 위하여 기존의 이상 탐지 알고리즘과 제안된 알고리즘을 수행하여, 각각의 과탐지율을 평가, 제시하였다.

• 한국심리학회지 : 코칭
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• 제6권2호
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• pp.45-73
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• 2022

본 연구의 목적은 코칭리더십이 인사평가효과성에 미치는 영향과 코칭리더십이 인사평가효과성의 관계에서 부정피드백 추구행동의 매개효과와 코칭리더십이 부정피드백 추구행동에 영향을 미치는 데 있어서 심리적 안전감의 조절효과를 밝히는 데 있다. 이를 위해 국내 다양한 기업에서 종사하는 직장인 300명을 대상으로 온라인 설문조사를 통해 자료를 수집하였다. 본 연구의 결과는 다음과 같다. 첫째, 코칭리더십과 인사평가효과성의 관계에서 부정피드백 추구행동의 매개효과를 확인하였다. 둘째, 코칭리더십과 부정피드백 추구행동의 관계에서 심리적 안전감은 조절효과가 있는 것으로 검증되었다. 셋째, 조절된 매개효과는 유의미하지 않은 것으로 나타났다. 마지막으로, 본 연구에서는 연구결과를 토대로 학문적 의의와 시사점, 한계점 및 향후 미래 연구과제를 위한 제언을 논의하였다.

• Asia Marketing Journal
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• 제10권1호
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• pp.133-160
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• 2008

본 연구는 소비자들이 다양한 이유로 인해 인터넷 구매결정을 연기하는 쇼핑행동을 경험적 관점에서 바라보고 이를 통해 감정적 요인들이 쇼핑몰 만족도에 미치는 영향력을 살펴보고자 하였다. 본 연구모델의 실증분석을 위해 설문조사를 실시한 결과, 성과적 위험지각, 재정적 위험지각, 사회적 위험지각에 의한 구매결정 연기는 부정적 감정을 경험하게 하며, 특히 성과적 위험지각의 경우 긍정적 감정에 부적 영향을 미치는 것으로 나타났다. 하지만 사회적 위험지각과 절차 불확실성에 의한 구매결정 연기는 쇼핑 중 긍정적 감정에 영향을 미치고, 필요 불확실성에 의한 구매결정 연기는 부정적 감정을 감소시켜 쾌락적 쇼핑성향과 관련된 구매결정 연기는 긍정적 감정을 경험하게 하는 것으로 나타났다. 또한 인터넷 쇼핑감정에서 경험된 긍정적 감정은 쇼핑몰 만족도에 정적 영향을 미치고 부정적 감정은 부적 영향을 미침을 알 수 있었다.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.85-93
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• 2020

This study aimed to explore the impact of macroeconomic (Real GDP growth (GDPG), Inflation rate (INF)) and bank -specific variables (profitability (ROA), capital adequacy (CADEQ), non-performing loans (NPL), deposit growth (DEPG)) on the liquidity (lIQ) of 13 listed Jordanian commercial banks for the period 2011-2018. Panel data analysis, Pooled least square, fixed effects model and random effects model, Lagrange multiplier test, and Hausman test were used. The random effects model output shows that, macroeconomic variables have a significant impact on Jordanian commercial banks liquidity since inflation has a positive impact while GDPG has a negative impact on banks (LIQ). On the other hand among the bank-specific variables capital adequacy and deposit growth have a positive significant impact on banks (LIQ), while (NPL) and (SIZE) have a negative significant impact on Jordanian commercial banks liquidity. But ROA has a negative insignificant impact on (LIQ). The findings of the study suggest that commercial banks departments need to pay attention to the economic and internal variables of banks in order to maintain acceptable levels of liquidity.

• 아동학회지
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• 제30권2호
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• pp.113-127
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• 2009

This study investigated whether children's self-control and sense of humor could moderate negative effects of daily hassles on their school adjustment. Subjects of this study were 880 6th graders (468 boys, 412 girls) in the Seoul metropolitan area. Children reported their daily hassles, school adjustment, self-control, and sense of humor on questionnaires. The collected data were analyzed using descriptive statistics, Pearson's correlation analysis, and moderated regression analysis. Results showed that children who experienced less daily hassles, had higher self-control, and higher sense of humor were well-adjusted in their schools. Children's self-control and sense of humor moderated negative effects of daily hassles on school adjustment of children, although the moderate effect was weak.

• 아동학회지
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• 제30권1호
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• pp.43-57
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• 2009

This study examined relationships between caregivers' attachment, young children's emotion regulation, and aggression. Subjects were 110 institutionalized and 105 home-reared children (M=3.8 and 4.2 years, respectively). Data were collected from children's caregivers via questionnaires and analyzed by ANOVA, correlations, and hierarchical regressions. Results showed that (1) caregivers' attachment and the emotion regulation and aggression of institutionalized children were significantly different from those of home-reared children; (2) caregiver's attachment was positively related to emotion regulation for both institutionalized and home-reared children; (3) for institutional children, negative relationships between attachment and aggression was found for girls; negative relationships between emotion regulation and aggression was found for boys. These findings underscore negative effects of institutionalized care on children's socio-emotional behaviors.

• East Asian Economic Review
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• 제21권2호
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• pp.147-165
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• 2017

This study quantifies the dynamic interrelationship between the KOSPI index return and search query data derived from the Naver DataLab. The empirical estimation using a bivariate GARCH model reveals that negative contemporaneous correlations between the stock return and the search frequency prevail during the sample period. Meanwhile, the search frequency has a negative association with the one-week- ahead stock return but not vice versa. In addition to identifying dynamic correlations, the paper also aims to serve as a test bed in which the existence of profitable trading strategies based on big data is explored. Specifically, the strategy interpreting the heightened investor attention as a negative signal for future returns appears to have been superior to the benchmark strategy in terms of the expected utility over wealth. This paper also demonstrates that the big data-based option trading strategy might be able to beat the market under certain conditions. These results highlight the possibility of big data as a potential source-which has been left largely untapped-for establishing profitable trading strategies as well as developing insights on stock market dynamics.

• 한국생활과학회지
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• 제16권2호
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• pp.251-257
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• 2007

The combined impact of maternal depression, parenting stress, infant cry, and infant temperament on family functions was examined. The sample included 257 mothers in the near communities. Questionnaires completed by the mothers who had 0-36 month old children were used to measure depressive symptoms in mothers, infant cry, infant temperament, parenting stress, and family function. Maternal depression, parenting stress, infant crying and infant temperament had negative influence on family adaptability and family cohesion. Mother's depression had negative effect particularly on infant cry. Infant cry had positive effect on infant temperament. Infant temperament had high direct effect on parenting stress. As a result, it had negative influence on family function.