• Journal of Nutrition and Health
• /
• 제44권1호
• /
• pp.41-48
• /
• 2011

Constructs with seven latent evaluation indicators and 18 observable survey questions were developed by food and nutrition experts to calculate a food safety recognition and practice index for children. The purpose of this study was to suggest statistical approaches to test construction validity on the constructs, obtain weights of the evaluation indicators, and develop questionnaires to calculate a children's food recognition and practice index. Survey data of 2,400 elementary fifth grade students were used as empirical results. Test validity was evaluated by exploratory factor analysis and confirmed to be highly significant by confirmatory factor analysis [i.e., linear structural relations (LISREL) analysis]. Standardized path coefficients of the LISREL analysis were suggested based on weights, and the weights were compared using the AHP and Delphi methods.

• 한국측량학회지
• /
• 제37권1호
• /
• pp.29-42
• /
• 2019

본 연구는 공공시설의 질적인 측면의 확대를 위해 SNS (Social Network Service) 데이터를 활용하여 이용자 중심의 공공시설 선호요인을 도출하고, 이를 공급측면과 수요측면에서 정량화시키는 방법을 제안하였다. 선호요인 도출을 위해 토픽모델링 중 하나인 LDA (Latent Dirichlet Allocation)를 활용하였으며, 공급요인인 개별시설별로 매력도지수를 산출하였다. 또한 수요자 입장에서 서비스체감 정도를 측정하기 위해 공간접근성을 분석하였는데, 2SFCA (2-Step Floating Catchment Area) 방법을 활용하여 앞서 제안한 공공시설 매력도지수를 적용할 수 있도록 하였다. 실험은 서울시 공공도서관을 대상으로 진행하였다. 연구결과 공공도서관에 대한 선호요인으로 주변 환경, 시설 및 이용규모, 문화 프로그램, 육아, 장서 및 자료현황의 5가지 주제가 추출되었으며, 주변 환경이나 육아관련 주제는 새롭게 도출된 선호요인으로 선행연구와 차별성이 있다. 각 도서관별로 매력도지수를 산출한 결과 송파도서관, 정독도서관, 남산도서관의 매력도지수가 높게 나타났으며, 송파도서관은 육아요인에서 정독도서관과 남산도서관은 주변 환경요인에서 좋은 평가를 받고 있는 것으로 나타났다. 각 동별 공간접근성은 공공도서관이 많이 몰려있는 서울 중심부의 접근성이 좋은 편이며, 외곽지역으로 갈수록 줄어드는 것으로 보였다. 본 연구에 제안한 기법을 통해 이용자 중심의 공공시설 평가 및 정책의사 결정에 도움을 줄 것으로 기대한다.

• Journal of Preventive Medicine and Public Health
• /
• 제38권3호
• /
• pp.298-306
• /
• 2005

Objectives : To develop measurement scales of Internet addiction, and propose a Korean Internet Addiction Index (K-IAI) and classification criteria for Internet addiction from the threshold scores developed. Methods : The identification of the concept of 'Internet addiction' was based on the literature review. To select the scales, an exploratory factor analysis was applied. A construct validation was tested by a confirmatory factor analysis (CFA) with a structured equation model (SEM). In testing the validity of the classification criteria, ANOVA and non-recursive models with SEM were applied. Results : Out of 1,080 questionnaires distributed, 1,037 were returned,; a response rate of 96%. The Cronbach-$\alpha$ of all items was over 0.75. Using an exploratory factor analysis in the condition of a 6 factor constrain as the study model proposed, 23 of the initial 28 items were identified. In testing the discriminant and convergent validity of the selected 23 scales using CFA with SEM, the Internet addiction model explained about 93% of all variances of the data collected, and all the latent variables significantly explained the designated scales. A K-IAI was proposed using the T-scores of the sum of all factor averages. In the classification of users, the basic concept was a twostandard deviation approach of the K-IAI as the criteria of MMPI. The addiction group had a score ${\geq}70$ in the K-IAI, the pre-addiction group between ${\geq}50$ and <70, and the average user group <50. The Internet use times of the classified groups were statistically different in the ANOVA and multiple comparisons. Conclusions : The K-IAI is a reliable and valid instrument for measuring Internet addiction. Moreover, the taxonomy of the groups was also verified using various methods.

• 디지털융복합연구
• /
• 제15권10호
• /
• pp.103-111
• /
• 2017

본 연구는 탐색적 요인분석과 확인적 요인분석에 대한 특성과 그 차이점에 대하여 살펴보고, 동일한 데이터를 활용하여 탐색적 요인분석과 확인적 요인분석의 분석과정 및 결과를 비교분석함으로써 두 방법론의 올바른 이해와 적용에 대하여 알아보고자 한다. 한편, 실증분석 결과는 아래와 같다. 탐색적 요인분석에서는 판별타당도가 저해되는 p.1, p.3이 제거된 반면, 확인적 요인분에서는 집중타당도가 저해되는 p.3가 제거 되었다. 탐색적 요인분석의 경우 다수의 측정변수를 소수의 요인으로 축약하는 분석과정(다소 부족한 이론적배경)인 반면, 확인적 요인분석은 측정변수와 잠재변수들 간의 관계를 파악 및 확인하는 과정(강력한 이론적배경)으로 동일한 데이터를 활용한다 하더라도 두 방법론은 언제든지 다른 결과 값이 도출될 수 있는 바, 데이터의 성격 등에 따라 올바른 방법론의 활용이 요구된다는 시사점을 보여주고 있다.

• 경영과정보연구
• /
• 제32권4호
• /
• pp.103-126
• /
• 2013

기업현장에서 현직교육훈련에 대한 요구가 점점 커지고 있고, 많은 기업들이 현직교육훈련을 실시하고 있거나 추진을 계획하고 있다. 더욱이 최근 기업은 우수인재를 확보 유지를 하기 위해서 기업차원에서 다양한 노력을 기울이고 있다. 하지만 실제구성원들이 어떤 이유에서 현직교육훈련을 선택하고, 이를 시행하는데 어떤 어려움을 겪고 있으며, 성과에 대해서 어떻게 생각하고 있는지에 대한 정보는 미미한 실정이다. 본 연구는 이러한 문제의식을 바탕으로 구성원의 관점에서 현직교육훈련 참여동기 요인을 찾아보고, 현직교육훈련을 선택하는데 영향을 주는 요인을 현직교육훈련 유형 및 통합적인 관점에서 밝히고자 하였다. 분석 결과, 구성원들이 현직교육훈련 참여강도에 영향을 미치는 변인은 OJET 유형 요인, 담당업무 요인, OJET 참여이유 요인, 기업환경 요인 그리고 개인특성 요인들이 이에 유의한 변인으로 밝혀졌다. 분석결과를 기초로 해서, 본 논문은 기업차원에서 현직교육훈련 참여를 활성화할 수 있는 정책적, 제도적 모색방안을 제시하였다.

• 한국학교ㆍ지역보건교육학회지
• /
• 제15권3호
• /
• pp.105-125
• /
• 2014

Background: The purpose of this study was to evaluate reliability and validity of a 27-item Korean Version of the Impact of Weight on Quality of Life in adolescents ($IWQOL-Kids^{(C)}$: Korean Version). Methods: This instrument was administered to 872 adolescents (mean z-BMI: 2.61, mean $age{\pm}SD$: $13.9{\pm}1.2$, male: 51.9%). Reliability was tested by internal consistency method and item analysis, validity test was performed by index of content validity, exploratory factor analysis, confirmatory factor analysis and concurrent validity. Sensitivity was tested by ANOVA and t-test. Analyses were performed using SPSS and Amos 18.0. Results: By an exploratory factor analysis, 4 factors were extracted; 'Body esteem' consisted of 9 items with 35.9% of variance (social life: 6 items, 10.23%, physical comfort: 6 items, 8.21%, family relations: 6 items, 7.0%). Four factors explained 61.34% of total variance. Internal consistency coefficients ranged from .766 to .929 for scales on 27 items and equal to .920 for total score for both the 26-item and 27-item tools. A confirmatory factor analysis was conducted for the convergent validity and discriminant validity. The standardized factor loadings to test the convergent validity showed more than .5(C.R<1.965) on all paths after deletion of item PC1 (avoid stairs). The average variances extracted were more than .50 and the construct reliabilities were more than .70. The average variances extracted were stronger than the squares of correlation coefficient of inter-latent variables. Conclusions: These results support that the $IWQOL-Kids^{(C)}$: Korean Version with a 26-item is a reliable and valid tool in Korean obese adolescents.

• 한국콘텐츠학회논문지
• /
• 제21권6호
• /
• pp.415-424
• /
• 2021

유학생활은 학교에서 뿐만 아니라 경제, 사회적 관계, 문화 등 다양한 영역에서 이루어지기 때문에 각 영역별로 만족수준은 개인마다 상이하게 나타날 수 있다. 따라서 유학생활의 질적인 수준을 제고하기 위해서는 이를 고려하여 다차원적으로 접근할 필요가 있다. 이에 본 연구는 외국인 유학생의 유학생활만족도를 다차원적으로 접근하여 탐색하였다. 이를 분석하기 위해 잠재집단분석을 적용하여 하위집단을 식별하였으며, 집단분류에 영향요인을 검증하기 위해 다항로지스틱회귀모형을 적용하였다. 분석결과는 크게 2가지로 정리된다. 하나는 유학생활만족도가 상이한 하위집단이 식별되었다. 하위집단은 주거, 경제, 사회적 관계, 학업, 문화 등 5가지 영역별로 상이한 만족수준을 보였으며, 단일차원에서는 발견되지 않는 집단들을 식별해냈다. 두 번째는 집단분류에 영향을 미친 요인은 학업적 요인, 심리·정서적 요인, 환경적 요인이 복합적으로 작용하였다. 특히, 하위집단별로 예측요인은 상이하게 영향을 미치는 것으로 나타났다. 이상의 연구결과를 바탕으로 외국인 유학생의 유학생활만족수준을 제고하기 위한 실천적, 정책적 제언을 모색하고자 한다.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권6호
• /
• pp.449-456
• /
• 2020

This study examines the relation between the quality of leader-member relationship and operational performance of processing enterprises employees in Vietnam, while job satisfaction and innovation are as a mediator variable. In depth interviews are first conducted with five managers and professional workers in five processing enterprises to determine the latent variables and build the structured questionnaire with observed variables. A quantitative survey with 438 employees and managers from 300 processing enterprises was carried out. The method of exploratory factor analysis (EFA), Cronbach's alpha analysis, and confirmatory factor analysis (CFA) was used to test the reliability, the convergent nature, and the consistency of the concepts. Structural equation modeling (SEM) is used to test the proposed model. The result shows that job satisfaction, innovation and operational performance have positive effects on the quality of leader-member relationship. The relationship between leaders and members had indirect impact on employee's operational performance via their job satisfaction and innovation, which illustrates a mediator role of job satisfaction and innovation for employees' performance. The findings of this study suggest that managers need to focus on developing relationship with employees to improve their satisfaction, innovation and performance.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권6호
• /
• pp.399-407
• /
• 2020

The paper examines social entrepreneurial intention through outcome expectations. The proposed model incorporates outcome expectations from social cognitive career theory and theory of planned behaviors. The study also introduces a scale for outcome expectations in social entrepreneurship, including solving social problems, innovation, family tradition of social involvement, meaning in life, prestige and social recognition, competitive and favorite job and wealth. A survey of 279 students was conducted through face-to-face structured interviews. The confirm factor analysis and technique of structural equation modeling were used to explore relationships among latent constructs. Research results show that the outcomes impact only through three determinants of theory of planned behavior and do not have significant impact to social entrepreneurial intention. It suggests that outcome expectations may be a flexible factor. Individual outcome expectations can shift to motivations when facing favorable conditions such as family support, government support, etc. The findings suggest that the ability to predict social entrepreneurial intention of attitude toward behavior, subjective norms, and perceived behavioral control. The proposed model in this study contributes importantly to the emerging literature on entrepreneurial intention, particularly to social entrepreneurial intention. This study is also the first quantitative study to measure the impact of outcome expectations on social entrepreneurial intention.

• 대한가정학회지
• /
• 제40권8호
• /
• pp.191-206
• /
• 2002

The purpose of this study was to explore the effects of adolescent attachment to mothers and peers, self-esteem and impulse control on delinquency. The subjects were 624 eighth and eleventh grade students in Busan. The subjects rated themselves on questionnaires regarding attachment to mothers and peers, self-esteem, impulse control and latent delinquency. The major findings of this study were as follows; 1) Male adolescent delinquency increased with grade. But no grade difference was found in female adolescent delinquency. And male adolescent had more delinquency than female adolescent. 2) Grade had a direct and indirect effect through attachment to peers and impulse control on male adolescent delinquency and was the first positive contribution factor. Impulse control had a direct negative effect on male adolescent delinquency. Attachment to mothers had an indirect negative effect through self-esteem on male adolescent delinquency. Attachment to peers had an indirect negative effect through self-esteem and impulse control on male adolescent delinquency. Self-esteem had an indirect negative effect through impulse control on male adolescent delinquency. 3) Attachment to mothers had a direct and indirect effort through impulse control on female adolescent delinquency and was a first negative contribution factor. Impulse control had a direct negative effect on female adolescent delinquency. Attachment to peers had an indirect negative effect through impulse control on female adolescent delinquency. Grade had an indirect negative effect through impulse control on female adolescent delinquency. Self-esteem had no effect on female adolescent delinquency.