• Therapeutic Science for Rehabilitation
• /
• v.12 no.1
• /
• pp.37-49
• /
• 2023

Object : This study aimed to identify the factor structure of Korean-Child Behavior Checklist 1.5-5 Dysregulation Profile (K-CBCL 1.5-5 DP) in infants and toddlers with mental disorders and verify differences in K-CBCL 1.5-5 DP among the diagnosis groups. Methods : The participants were 265 mothers of infants and toddlers with mental disorders who completed K-CBCL 1.5-5 DP. The data was analyzed using AMOS 25.0 and SPSS 25.0. Results : First, the bifactor model was the most suitable for the factor structure of the K-CBCL 1.5-5 DP. Second, there were significant differences among the diagnosis groups, such as communication disorders, pervasive developmental disorders, emotional disorders, and developmental delays. It was confirmed that the pervasive developmental disorder and emotional disorder groups showed significantly higher dysregulation compared with the communication disorder group. Conclusion : This study confirmed that infants and toddlers had dysregulation problems. Using the bifactor model, the multidimensional nature of the K-CBCL 1.5-5 DP was assessed. It was also meaningful that dysregulation could contribute to onset and deepening of symptoms of pervasive developmental disorders and emotional disorders in infancy.

• Korean Journal of Culture and Social Issue
• /
• v.15 no.3
• /
• pp.431-446
• /
• 2009

This study was intended to validate and develop the driving stress coping behavior scale. In a preliminary investigation, literature studies on the driving stress and open questionnaire were administered and examined in four regions in Korea. As a result, 64 items driving stress questionnaire were developed. In the study, this Driving Stress Coping Behavior Scale(DS-CBS) was examined to 372 drivers located seven regions in Korea. The factors analysis revealed 2 meaningful factors[(Good Coping: GC), (Bad Coping: BC) with 24 items. When internal consistency for each 2 factor was calculated, all sub-scale revealed a satisfactory level of Cronbach's α. Also, correlations with Driver Coping Questionnaire(DCQ) and risk driving behaviors(speed driving, drunken driving, traffic violation, offence accident, defence accident) supported consistently validity of the Driving Stress Coping Behavior Scale(DS-CBS). Also, We investigated the influences of 'Good Coping', 'Bad Coping' consisting of driving stress coping behavior, on traffic accidents risk. As a result, 'Good Coping' and 'Bad Coping' influenced traffic accidents risk. 'Good Coping' had decreased effects, the other side 'Bad Coping' had increased effects on traffic accidents risk(TARI).

• Korean Journal of Occupational Health Nursing
• /
• v.24 no.3
• /
• pp.235-244
• /
• 2015

Purpose: The purpose of this study was to identify factors influencing exercise behaviors of the male manual workers and office workers based on health promotion model by examining the relationships among them, and then to provide basic information for developing exercise program. Methods: The 97 laborers and 99 officiers were collected from two worksites. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients and multiple regression. Results: Male laborers' exercise behavior was significantly influenced by exercise self-efficacy, exercise social support and exercise experience over 3 months, and these factors explained 50.2% of the total variance. Male officiers' exercise behavior was significantly influenced by exercise self-efficacy, subjective health status, perceived exercise barriers and exercise social support, and they explained 47.3% of the total variance. Conclusions: Based on the findings that exercise self-efficacy and exercise social support commonly influence exercise behavior of male laborers and officiers, there is a need to develop an exercise program to improve exercise self-efficacy and exercise social support.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.7 no.3
• /
• pp.111-119
• /
• 1987

Scale effects of stability, run-up, run-down and reflection of layered coastal structures are investigated through the experiments with 7 kinds of hydraulic scale models. The occurrence mechanism and the control method of scale effects are also discussed. As a result, it is found that the similarity of permeability of inner layers plays an important role in the occurrence of scale effects, which has been neglected in the most of conventional model tests. To assure the best scale effects for permeable coastal structures, control of Reynolds numbers of the porous media flow in each layer is recommended. It is also found that Reynolds numbers in revetment, filter, and core layer must be greater than $2{\times}10^4$, $3{\times}10^3$, and $1{\times}10^3$, respectively.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2016.05a
• /
• pp.151-151
• /
• 2016

하천 유역의 수자원관리에 있어서 홍수 및 가뭄 기간에 유출의 규모와 빈도와 같은 유출특성을 신뢰할 수 있도록 예측하는 것은 매우 중요하다. 수문모형은 이러한 유역의 신뢰성 있는 유출량 예측을 위해 이용되며, 수문모형의 결과물은 수문순환 과정의 공간적 표출이나 매개변수 추정방법 등 다양한 요인에 매우 민감하게 반영된다. 대부분의 수문모형 매개변수들은 해당 유역의 특성이나, 홍수 및 가뭄과 같은 극단적 유출상황에 따라 설정되어 있지 못한 실정이며, 이는 모형의 신뢰성 있는 보정 및 유출량 모의를 보다 정밀하게 수행하지 못하는 원인으로 작용하게 된다. 본 연구의 목적은 SWAT(Soil and Water Assessment Tool) 모형을 이용하여 유역의 하천 유출량을 모의함에 있어서 홍수 및 가뭄년, 평년의 유출특성이 모형의 매개변수 추정에 미치는 영향을 분석하고자 하는 것이다. 이를 위해, 안성천 유역($1,658.7km^2$)을 대상으로 유역 내 3지점의 기상관측소(이천, 수원, 천안)를 대상으로 40년(1976~2015)동안의 일 기상자료를 수집하여 SWAT 모형을 구축하였다. 홍수년 및 가뭄년, 평년을 포함하는 선별된 기간에 대하여 다양한 목적함수($R^2$, NSE, RMSE, PBIAS)를 활용하여 각각의 조합된 기간의 극단적 유출특성에 초점을 맞추어 검보정을 수행하였다. 이후 홍수년 및 가뭄년, 평년을 포함하는 선별된 기간에서의 유출량의 규모와 빈도에 영향을 미치는 매개변수를 도출하고 민감도를 평가하였다.

• Journal of Korea Port Economic Association
• /
• v.28 no.4
• /
• pp.209-229
• /
• 2012

There have been lots of studies on locational factors of companies, but, very few studies for Korean shipping companies. This study analyzes locational factors for Korean shipping companies using AHP(Analytic Hierarchy Process) method. For the study model, the first level is consisted by software, hardware and city policy factors. As more specific factors, the second level is formed by three factors of the first level. The third level consists of Seoul and Busan to evaluate competitive advantage for location of shipping companies. We carried out an analytical survey focused on the executives of shipping companies and related experts, and derived the priority order for locational factors of Korean shipping companies as follow. Firstly, software factors turned out the most important factor for location of Korean shipping companies. Next, Busan has a competitive advantage only in city policy factors. However, there are much of competitive disadvantages in both software and hardware factors for location of shipping companies compared against Seoul.

• Proceedings of the CALSEC Conference
• /
• 1999.11a
• /
• pp.621-626
• /
• 1999

전자상거래는 ‘제3의 산업혁명’이라는 별칭이 무색하지 않을 만큼 유통구조 뿐만 아니라 산업 전반에 걸쳐 일대 변혁을 가져오고 있다. 전자상거래 중에서도 인터넷 쇼핑은 가장 활성화가 빠르고, 성장 가능성이 무한한 분야이다. 사이버 쇼핑 시대가 다가옴에 따라 소비자가 인터넷 쇼핑몰을 이용할 때, 어떠한 요인들이 소비자의 만족에 직접적으로 영향을 미치고 있는가에 대한 연구가 요구되고 있다. 이를 따라 본 연구에서는 인터넷 쇼핑몰의 이용자를 대상으로 한 설문조사를 통해 인터넷 쇼핑몰의 소비자 만족에 영향을 미치는 요인을 분석 하였다. 설문조사 내용을 다중회귀모형을 통해 분석한 결과, 인터넷 쇼핑몰의 인터넷 상품의 품질, 제공 정보의 종류, 제공 정보의 품질, 주문 시간의 편리성, 주문 취소의 편리성이 인터넷 쇼핑몰의 만족과 유의적인 정의(+) 상관관계를 갖는 것으로 나타났다. 그리고 이와는 반대로 인터넷 상품의 가격 요인, 개인 정보 누출의 위험성은 유의적인 부의(-) 상관관계를 갖는 것으로 나타났다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.8 no.3
• /
• pp.754-760
• /
• 2004

The purpose of this paper is to examine the empirical analysis for charging factors and the evaluation models of internet site. Thus this is to analyze the charging factors affecting the consumer satisfaction of health information sites in the Internet. Based on the covariance structural model applied to a customer survey, this study shows that among the characteristics of the site, contents has the most significant effect on charging factor and customer satisfaction, which in turn affects the consumer willingness to recommend the site to others.

• Journal of Korean Society of Transportation
• /
• v.23 no.3 s.81
• /
• pp.73-84
• /
• 2005

Highway design criteria are considering roadway safety and smooth driving maneuver. However, a certain highway alignment within design criteria often leads drivers to undesirable situation due to the differences between the original intention of design criteria and the unintended result of drivers' cognition. The differences between them often result in traffic accidents. In order to reduce accident process, highway safety facilities are installed on those roadway sections. However, the relationship between highway environments and human factors has not been deeply studied in Korea. In this study. vertical roadway sections are constructed with 3-D graphical tools. This vertical roadway sections are simulated on a driving simulator in order to identify the differences of drivers' cognition on different roadway environments. Based upon the collected data from the driving simulator, canonical correlation analysis and canonical discriminant analysis of quantification theory II have been performed in order to figure out impacting factors on the degree of roadway safety. Also, based upon quantification theory I. the relationship between roadway safety facilities and the degree of safety has been analyzed.

• The Journal of the Korea Contents Association
• /
• v.19 no.3
• /
• pp.457-465
• /
• 2019

The purpose of this study is to identify factors that affect the language development of infants. For the analysis, data of three years from the first year (2008) to the third year (2010) of the 'Panel Study on Korean Children (PSKC)' were constructed and panel analysis was conducted. The subjects were 2,150 infants who participated in the questionnaire, and the language development of the infants was measured using the communication scores of the K-ASQ test provided by the Korean children's panel. In addition, the factors influencing the language development of infants derived from previous studies were introduced into the model. As a result of the analysis, it is shown that the fixed effect model with fixed individual error of the panel is suitable through the Hausman test. The higher the cognitive development level of the infant, the more positive parenting behavior of the infant, respectively. The conclusions and suggestions about the characteristics of the parents and the parents affecting language development were introduced.