• Korean Journal of Culture and Social Issue
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• v.23 no.3
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• pp.381-407
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• 2017

The purpose of this study was to develop scale for the measurement of indirect traumatization occurred by social disaster and test their validity. To achieve this purpose, this study conduct a research through the following procedure. First, to develop the inventory, various responses of indirect traumatization occurred by social disaster were gathered from Korean adults participated in open questionnaire. 41 items were made. Second, exploratory factor analysis were performed and 21 items were selected in this step. The Indirect Trauma Scale of Social Disaster(ITSSD) consisted of 4 factors, each with 4-to-8 items, respectively. Four factors include ① private coping responses ② symptom responses ③ distrust responses of world ④ moral emotion cause of social perpetrators. Appropriate levels of reliability were established for the ITSSD. Third, Indirect Trauma Scale of Social Disaster was validated by confirmatory factor analysis, and 21 items were fixed. To 300 participants differed from development step, confirmatory factor analysis was performed. 4 factors structure derived from the exploratory analysis was appropriate. And 4 factors indicated reasonable fit index such as TLI(.913), CFI (.924) and RMSEA(.077). In addition, ITSSD identified a significant positive correlation with Posttrauma Risk Checklist, Korean Depression Scale, State-Trait Anxiety Inventory-KYZ and negative with Acceptance-action Questionnaire-2. But that was unrelated to Forgiveness Trait Scale and Life Satisfaction Scale. Also the result showed that Women experienced high level of indirect trauma of social disaster than men.

• Solar Energy
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• v.12 no.2
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• pp.79-86
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• 1992

To assure the appropriate role of solar energy in the future energy mix scenarios, considering the inevitable volatile and unstable energy market, it is urgent to introduce the "Soft Energy Path" concept. In Korean energy situation, the "Soft Energy Path" concept of solar energy has to be assured by the optimum technology mix of appropriate scale and quality for their individual tasks, especially in the industrial sector. So, the solar society is requested to establish an conceptional innovation regarding the merits of soft energy path and of ultimate potential of solar energy.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.21 no.2
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• pp.145-153
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• 2009

This research utilized the manual to calculate the structural scale of stone and gabion, which was developed through comparison and verification of the results drawn by hydraulic model experiment and existing empirical formula. Appropriate structural scale of stone according to the construction site when the critical velocity was exceeded, utilizing the previously expected and recorded data on current velocity per day and per hour during the final closure period for Saemangeum sea dike. Also, the scale of rocks was presented, considering the altercation in water depth according to the construction. The developed manual offered appropriate rate of mixed use of stone and gabion that suits various flow velocities, which will minimize any loss of stone-gabion and contribute to successful final closure, and proved the utility and application of the manual.

• Journal of Korean Critical Care Nursing
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• v.15 no.3
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• pp.37-50
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• 2022

Purpose : This study aimed to examine the item characteristics of the Korean version of the intensive care experience questionnaire (K-ICEQ) using the Rasch analysis model of the item response theory. Methods : In this methodological study, the validity of the scale was examined, and a secondary analysis was conducted using cohort data of patients who were discharged from the intensive care units (ICU). Data from 891 patients who responded to the K-ICEQ upon ICU discharge were analyzed. The WINSTEP program was used to analyze item characteristics, including item difficulty, fit indices, appropriateness scale, and separation reliability. Results : The difficulty level of all 26 items of the K-ICEQ was appropriate, and the fit indices of the 25 items, except for item 18, were good. The 5-point scale of the K-ICEQ was not appropriate in the three subscales. The item separation reliability was good in all subscales, but did not meet the criteria in terms of respondents. Conclusion : The results of examining the item characteristics of the K-ICEQ revealed a good degree of difficulty, fitness, and item separation reliability. To increase the validity of the K-ICEQ, we suggest the rearrangement of the overall item order, modification of the item description of the "recall of experience" subscale, and reduction of the scale response level.

• The Korean Journal of Rehabilitation Nursing
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• v.15 no.2
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• pp.117-125
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• 2012

Purpose: The purpose of this study was to develop and validate of a knowledge scale for lymphedema in patients with breast cancer. Methods: 34 preliminary items were made according to literature review, then verified content validity, construct validity, and reliability of the scale. 28 items among them were confirmed through content analysis by 4 experts. After a preliminary test, a survey for 156 breast cancer patients was performed for confirming construct validity and reliability. The data were analyzed using factor analysis, independent t-test, and KR-20. Results: This scale had 28 items consisting of 2 categories: prevention and self-care of lymphedema. Construct validity was confirmed by known-group technique because there were some categories consisted of just one or two items, and some mismatches between categories and items in factor analysis. Women who were educated about lymphedema scored significantly higher than women who had not (t=-3.92, p<.001). Reliability was appropriate (KR-20=.81). A percentage of correct answers was 74.6%, but it was from 31.8% to 96.1%. Conclusion: The study shows that this scale is reliable and valid to measure the knowledge of lymphedema. This scale can be effective to assess and educate the patients with breast cancer.

• Journal of Korean Academy of Nursing
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• v.45 no.4
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• pp.613-624
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• 2015

Purpose: The purpose of this study was to develop a scale to evaluate empowerment in woman with breast cancer and to examine the validity and reliability of the scale. Methods: The development process for the initial items included a literature review, interviews, and construction of a conceptual framework. The identified items were evaluated for content validity by experts, resulting in 3 factors and 48 preliminary items. Participants were 319 women with breast cancer recruited to test reliability and validity of the preliminary scale. Data were analyzed using item analysis, confirmatory factor analysis, criterion related validity, internal consistency and test-retest reliability. Results: The final scale consisted of 30 items and 3 factors. Factors, including 'intrapersonal factor' (14 items), 'interactional factor' (8 items), and 'behavioral factor' (8 items), were drawn up after confirmatory factor analysis. Goodness of fit of the final research model was very appropriate as shown by ${\chi}^2/df=1.86$, TLI=.90, CFI=.92, SRMR=.06, and RMSEA=.05. Criterion validity was evaluated by total correlation with the Cancer Empowerment Questionnaire .78. Cronbach's alpha for total items was .93 and test-retest reliability was .69. Conclusion: Findings from this study indicate that the scale can be used in the development of nursing interventions to promote the empowerment of women having breast cancer.

• Journal of Families and Better Life
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• v.32 no.2
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• pp.53-75
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• 2014

The purpose of this study was to develop and validate the "Authentic Parental Competence Scale" for mothers with school-age children. Based on a literature review, the study found that 'authentic parental competence' could be divided into parenting comperence, self-system competence, and social competence. In addition, the scale comprised three factors consisting of 43. The study collected data through behavior event interview(BEI), focus group interview(FGI), and three times Delphi investigation. The scale for mothers of school-age children consisted of a total of 129 items, which included three different dimensions (knowledge, skill, and attitude), and four factors were extracted from factor analysis following a survey of 362 mothers. The factors were labeled as "ability of developmental positive parenting," "ability of playing a role as a citizen and making social contributions," "ability of self-understanding and interpersonal relations," and "ability of self-growth and self-determination." In addition, the results revealed that the "Authentic Parental Competence Scale" showed an appropriate level of construct validity, reliability of the scales, distribution of item response, and item discrimination.

• Women's Health Nursing
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• v.25 no.1
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• pp.31-45
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• 2019

Purpose: This study was designed to develop a valid and reliable scale for the evaluation of preconception health behavior in women preparing for pregnancy. Methods: The initial strategy included a literature review, interviews, and construction of a conceptual framework. The preliminary items were evaluated twice for content validity by experts, and modified two preliminary investigations. Participants in the 2 main investigations and the confirmation investigation were tested for reliability and validity of the preliminary scale in women preparing for pregnancy. The data were analyzed for different items exploratory and confirmatory factors. Results: The 5-point Likert scale consisted of 6 factors and 27 items. The 6-factors included 'hazardous substance factor,' 'medical management factor,' 'rest and sleep factor,' 'stress management factor,' 'information acquisition factor,' and 'resource preparation factor.' Goodness of fit of the final research model was very appropriate and based on the following measures: Q=1.98, comparative fit index=.91, Tucker-lewis index=.89, standardized root mean square residual=.07, and root mean square error of approximation=.07. The criterion validity was .64. The reliability coefficient was .92 and the test-retest reliability was .61. Conclusion: The study findings indicate that the scale can be used for the development of nursing interventions to promote preconception health behavior in women preparing for pregnancy.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.17 no.4
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• pp.1100-1122
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• 2023

Scheduling user-submitted cloud tasks to the appropriate virtual machine (VM) in cloud computing is critical for cloud providers. However, as the demand for cloud resources from user tasks continues to grow, current evolutionary algorithms (EAs) cannot satisfy the optimal solution of large-scale cloud task scheduling problems. In this paper, we first construct a large- scale multi-objective cloud task problem considering the time and cost functions. Second, a multi-objective optimization algorithm based on multi-factor optimization (MFO) is proposed to solve the established problem. This algorithm solves by decomposing the large-scale optimization problem into multiple optimization subproblems. This reduces the computational burden of the algorithm. Later, the introduction of the MFO strategy provides the algorithm with a parallel evolutionary paradigm for multiple subpopulations of implicit knowledge transfer. Finally, simulation experiments and comparisons are performed on a large-scale task scheduling test set on the CloudSim platform. Experimental results show that our algorithm can obtain the best scheduling solution while maintaining good results of the objective function compared with other optimization algorithms.

• Perspectives in Nursing Science
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• v.9 no.1
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• pp.24-35
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• 2012

Purpose: This research was performed to investigate Korean adolescents' body weight perception, appropriate weight change efforts, and factors that influencing these efforts. Methods: The data were obtained from 68,136 adolescents, aged 12~18 years from the 2007 Third Korean Youth' Risk Behavior Web-based Survey. Descriptive statistical analysis and odds ratio were calculated by logistic regression. Results: The distribution of the body mass index differed in boys and girls. The accuracy of body weight perception was shown in the order of the underweight (91.6%), overweigh t (73.3%), normal weight (55.4%), obesity (41.3%) groups. Adolescents with high perceived economic status tended to have a high prevalence of accuracy of body weight perception. The distribution of appropriate weight change efforts according to the actual body mass index showed that girls were trying to lose weight more than boys. The results of a logistic regression analysis regarding appropriate weight change efforts showed differences according to gender, perceived economic status, mother's educational level, and family affluence scale. Conclusion: Appropriate body weight perception and change management plans are needed for Korean adolescents. In addition, active weight change programs have to be established in the adolescents' living environments, such as schools.