• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.923-931
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• 2009

The purpose of this study is to testify construct validity of Self-directed Learning Perception Inventory for middle school students(Lee, 2008). For the purpose, First, test was done with 1202 middle students sampled from nationwide. As a result of confirmatory factor analysis using structural equation model, we confirmed 7 factor model was generally appropriate and acceptable. Second, in order to test criterion-related validity, test was done with 530 middle school students sampled form Seoul, Gyeonggido, Chungchongdo. The inventory has criterion-related validity enough to be a tool for measurement. Reliability of this inventory was .94 and retest reliability was .91. The limitation of this and suggestion for future research were discussed.

• Journal of Elementary Mathematics Education in Korea
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• v.24 no.3
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• pp.259-277
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• 2020

The purpose of this study was to develop and validate a scale of Korean elementary teachers' mathematics beliefs. We examined 299 elementary teachers' mathematical beliefs using 30 items, out of which 12 items covered beliefs about the nature of mathematics and 18 items covered beliefs about mathematics teaching and learning. In the first stage, we performed exploratory factor analysis using 149 survey data to examine the factor structure. In the second stage, we performed confirmatory factor analysis using 150 survey data. Building upon previous studies, we examined the construct validity of three different models to find the best factor structure. The study results indicate that the four-factor model with 14 items provides the best fit for the data: transmissive view of mathematics, constructivist view of mathematics, transmissive view of teaching and learning, and constructivist view of teaching and learning. The findings of the study reveal that each factor has adequate internal consistency and reliability. These results confirm that the beliefs scale is a reliable and valid measurement tool to measure Korean elementary teachers' mathematical beliefs. The implications of the study are discussed.

• Archives of Plastic Surgery
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• v.35 no.3
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• pp.303-308
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• 2008

Purpose: The purpose of this study is to develop three-dimensional computerized anthropometry(3DCA) and to compare its reliability and accuracy 3DCA with manual anthropometry(MA) for measurement of lips and nasal deformities in unilateral cleft lips and palate(UCLP) patients. Methods: Samples were consisted of six UCLP patients whose facial plaster models were available immediately before and 3 months after the cleft lip surgery. MA of the facial plaster models was carried out using an electronic caliper. In 3DCA, three-dimensional auto-measuring program was used to digitize landmarks and to measure three-dimensional virtual facial models (3DVFM), which was generated with a laser scanner and 3D virtual modeling program. Intraclass correlation coefficients(ICC) were calculated to evaluate reliability and reproducibility of the variables in both methods, and Wilcoxon's signed rank test was done to investigate the difference in values of the same variables of facial models of each patient between two methods. Results: All ICC values were higher than 0.8, so both methods could be considered reliable. Although most variables showed statistical differences between two methods(p<0.05), differences between mean values were very small and could be considered not significant in clinical situation. Conclusion: In clinical situation, 3DCA can be an objective, reliable and accurate tool for evaluation of lips and nasal deformities in the cleft patients.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.6
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• pp.2739-2745
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• 2014

Background: Health-related quality of life (HRQL) is a fundamental outcome in oncology patients and quality of life (QOL) assessment requires clinically relevant questionnaires. The purpose of this study was translation and definition of measurement properties and the clinical validity of Quality of Life Questionnaire (QLQ)-OG25 module in Persian patients with oesophagus, oesophagogastric junction (OGJ) or gastric cancers. Materials and Methods: The translation procedure followed European Organization for Research and Treatment of Cancer (EORTC) guidelines. Both EORTC QLQ-OG25 and a core questionnaire (EORTC QLQ-C30) were administered to patients with oesophagus (150), OG junction (93) and gastric (32) cancer undergoing multi-modal treatments. Convergent and discriminant validity, Cronbach's alpha coefficient and known-groups comparisons were used to examine reliability and validity. Results: In all, 275 patients (mean age 62 years) completed both questionnaires. Compliance rate was high and the questionnaire module was well accepted. We found good reliability for multi-item subscales of QLQ-OG25 (Cronbach's alpha coefficients 0.76-0.89). About 73% had TNM staging and scales distinguished between clinically distinct groups of patients. However, patients in palliative group experienced compromised functional status and worse treatment-associated symptoms than those in the potentially curative group. Test-retest scores were consistent. Multi-trait scaling analysis demonstrated good convergent and discriminant validity. Conclusions: Overall, the Persian version of QLQ-OG25 demonstrated psychometric and clinical validity that supports its application as a supplement to the original tool (EORTC QLQ-C30) when assessing HRQL in patients with upper-gastrointestinal (GI) cancer both in curative and palliative phases.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.25 no.3
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• pp.142-155
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• 2014

Objectives : The aim of this study was to develop an assessment tool for measurement of children's functioning in the mental health service. We conducted a preliminary study to develop a sensitive and inclusive scale focused on the functional changes of children rather than just focusing on their symptoms or screening. Methods : The Child and Adolescent Functional Assessment Scale and the Korean-Child Behavior Checklist (K-CBCL) were both administered to 134 parents of children with emotional or behavioral problems who participated in the Aizone program and also to 186 parents of elementary school children in the Seoul metropolitan area as a control group. SPSS version 12.0 was used for statistical analysis. Results : Most of the reliability coefficients were over 0.70 except those of the conduct behavior items, which showed relatively high internal consistency. The corrected item-total correlations ranged from .411 to 758, except those of conduct behavior items and special measure items. In a concurrent validity test with K-CBCL, the total behavior problem score of K-CBCL was highly correlated with the total score of the Child and Adolescent Functional Assesment Scale (r=.610). For the construct validity, confirmatory factor analysis was performed for each of four areas, including behavior (at home/school), achievement, peer relationship, and emotion. Conclusion : The results showed that the scale was statistically reliable and valid, except for conduct behavior items. This study was conducted only for parents with elementary children. An adolescents group should be included in future studies.

• Archives of Plastic Surgery
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• v.39 no.3
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• pp.227-231
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• 2012

Background : The ankle brachial pressure index (ABI) is a simple, useful method for diagnosing peripheral artery disease (PAD). Although the ABI is an objective diagnostic method, it has limited reliability in certain scenarios. The aim of the present study was to determine the accuracy and reliability of the toe brachial index (TBI) as a diagnostic tool for detecting stenosis in PAD, associated with normal or low ABI values. Methods : ABI and TBI values were measured in 15 patients with diabetic gangrene who were suspected of having lower extremity arterial insufficiency. The ABI and TBI values were measured using a device that allowed the simultaneous measurement of systolic blood pressure in the upper and lower extremities. In addition, the ABI and TBI values were compared pre- and post-angiography. Results : Patients with an ABI of 0.9-1.3 showed almost no difference between the 2 measurements. The patients with TBI >0.6 had no arterial insufficiency. The patients with TBI <0.6 required vascular intervention with ballooning. After the angiography, the gangrenous wounds decreased in size more rapidly than they did prior to the intervention. Conclusions : Our findings suggest that TBI is the method of choice for evaluating lower limb perfusion disorders. This result requires further studies of TBI in a larger number of patients. Future long-term studies should therefore evaluate the utility of TBI as a means of screening for PAD and the present findings should be regarded as preliminary outcomes.

• Industry Promotion Research
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• v.1 no.1
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• pp.19-25
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• 2016

This study is to determine the status of satisfaction and well-being and work environment aimed at SME workers, deficiencies is to improve the overall satisfaction improvement. As a result of the confidence analysis to verify the reliability of the measurement tool, all of the factors is somewhat higher reliability coefficient was found to less than 0.6. Job factors, relationship factors, compensating factors are subjected to multiple regression analysis as job satisfaction and welfare duties factors to determine the impact on satisfaction, relationship factors, the compensation factor as an independent variable and dependent of each job satisfaction and welfare satisfaction variable result of three factors, job factors and compensation factors, two factors had significant influence on job satisfaction. When the job factor ${\beta}$ value(0.584), the compensation factor(0.369) showed a net impact on job satisfaction big. By improving the business environment and well-being through improved employee satisfaction, it came to a positive attitude to business is expected to have a positive impact on the satisfaction of external customers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.10
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• pp.6056-6065
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• 2014

The aim of this study was to develop a scale of the Korea citizen's intentionality out of their inborn ability and mission. To set up the concept of the above intentionality, there have been many academic and religious studies for reference in addition to the existing productivity, Korea elderly successful aging scale, and the scale of life qualities for review. The first 57 items for questionnaires were created thereafter. The final 27 items were confirmed, which were constantly modified by a professor of statistics and corresponding author in effective response and in removing the redundant items after the first items had been reduced to 44 preliminary items through the many an item-by-item discussions with pastors, theologians and social workers. A survey was conducted around the metropolitan area and 380 records were collected. Factor analysis to verify the validity of the measurement tool was completed, and showed that there were 6 sub-factors; "recognition of being", "autonomous life", "self-completion", "initiative", "acceptance", and "economic feasibility". In addition, reliability analysis was implemented and found to be reliable because the Cronbach's ${\alpha}$ value was 0.6 or more.

• The Journal of the Convergence on Culture Technology
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• v.5 no.2
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• pp.257-261
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• 2019

Service user satisfaction in the community service is also an important factor that leads to the improvement of the quality of the social service and the self - reliance of the service provider. The purpose of this paper is to examine the satisfaction factors affecting service continuity intentions in community service users, and provide direction and demand forecast information to improve user satisfaction and service satisfaction. In this study, the reliability test was conducted to check the reliability of each measurement tool and descriptive statistics and frequency analysis were conducted to identify the general characteristics of the study subjects. Logistic regression analysis was conducted to determine the effect of user satisfaction factors on service continuity. As a result of this study, it was confirmed that service user satisfaction in the community service is an important factor for improving the quality of social services and for the independence of service providers.

• Asia-Pacific Journal of Business
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• v.10 no.3
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• pp.69-93
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• 2019

There is a growing interest in researching new leadership and efficient organizational management due to the changes and spread of Information Communications Technologies (ICT) related organizations. Therefore, the purpose of this study is to examine the effect of leadership on organization in ICT R & D, and to follow the relationship between coaching leadership, leader member exchange (LMX), emotional intelligence of leaders, and organizational effectiveness. In order to verify this research problem, a total of 310 people were surveyed from employees working in the ICT R & D field. Reliability analysis of the measuring tool was tested on 80 pilot surveys in advance, and the final 285 data were used for empirical analysis excluding 25 unsatisfactory responses. For analysis, SPSS 22.0 program and AMOS were used to analyze the reliability, validity, path analysis, and control effects of the measurement tools. The findings demonstrate empirically the positive relationship between LMX and organizational effectiveness on coaching leadership in ICT R & D. In addition, by empirically verifying the effect that the emotional intelligence of the leader regulates the relationship between LMX, organizational effectiveness, and coaching leadership, then emotional intelligence of the leader can be usefully applied in ICT R & D. Furthermore, the demand for more in-depth research on coaching leadership, LMX, and emotional intelligence of leaders, which positively affects organizational effectiveness, was identified as demand for ICT R & D is increasing and horizontal and interactive leadership is needed.