Assessment of the quality and generalizability of the revised UCLA loneliness scale in Chinese and Korean community-dwelling elderly populations using item response theory (IRT)-Rasch modeling and hybrid IRT-logistic regression     

In H. Park  Arif Rachmatullah  In-Sook Park 《Educational gerontology》2013,39(10):581-599

ABSTRACT

Objectives: This study aims to test the dimensionality, reliability, and item quality of the revised UCLA loneliness scale as well as to investigate the differential item functioning (DIF) of the three dimensions of the revised UCLA loneliness scale in community-dwelling Chinese and Korean elderly individuals.

Method: Data from 493 elderly individuals (287 Chinese and 206 Korean) were used to examine the revised UCLA loneliness scale. The Research model based on item response theory (IRT) was used to test dimensionality, reliability, and item fit. The hybrid ordinal logistic regression-IRT test was used to evaluate DIF.

Results: Item separation reliability, person reliability, and Cronbach’s alpha met the benchmarks. The quality of the items in the three-dimension model met the benchmark. Eight items were detected as significant DIF items (at α < .01). The loneliness level of Chinese elderly individuals was significantly higher than that of Koreans in Dimensions 1 and 2, while Korean elderly participants showed significantly higher loneliness levels than Chinese participants in Dimension 3. Several collected demographic characteristics and loneliness levels were more highly correlated in Korean elderly individuals than in Chinese elderly individuals.

Conclusion: Analysis using the three dimensions is reasonable for the revised UCLA loneliness scale. Good item quality and the items of this measure suggest that the revised UCLA loneliness can be used to assess the preferred latent traits. Finally, the differences between the levels of loneliness in Chinese and Korean elderly individuals are associated with the factors of loneliness.  相似文献   

An exploration of OpenCourseWare utilisation in Korean engineering colleges     

Eunhwa Chon  Sunhee Park 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(5):E97-E100

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Exercise and HRT for women well-being     

Kye Soon Park 《山东体育科技》2007,29(1):77-79

How HRT ＆ Exercise provide the Effect of Women Well - being is discussed here with the Presentation about （1） Information o,1 Honmone ＆ HRT; （2） Introduction to Estrogen Replacemen; （3） Review of Relational Studies.  相似文献   

Exploring the effects of training facilitators of dementia-family support programs     

Myonghwa Park 《Educational gerontology》2019,45(3):167-175

Dementia patients have various caregiving needs, which can be serious sources of stress for their families. The increasing numbers of dementia patients and their families mean that new interventions are required to help families provide these complex caregiving needs. Facilitators of dementia-family support programs struggle to provide various health and social services while facing diverse challenges when running these programs. The purpose of this study was to determine the self-efficacy, competence, and target complaints when operating a dementia-family support program among facilitators who had participated in a facilitator training program. The study had a one-group pretest and posttest design, and data from 32 facilitators at 28 community dementia centers were analyzed. We used a self-reported questionnaire to collect quantitative and qualitative data before and after participating in the training program. The self-efficacy and competence of the facilitators increased after participating in the training program and operating their own dementia-family support program. Target complaints that represented challenges to operating a dementia-family support program were divided into five categories, and most of them decreased at the posttest. This study has demonstrated the advantages of providing a training program to facilitators, which resulted in improvements in self-efficacy, competence, and difficulties when they were operating a dementia-family support program.  相似文献   

Construct and Predictive Validity of the CORE Phonics Survey: A Diagnostic Assessment for Students with Specific Learning Disabilities     

Yujeong Park  Amber E. Benedict  Mary T. Brownell 《Exceptionality》2014,22(1):33-50

The factor structure of the CORE Phonics Survey was analyzed using a sample of 165 students in upper elementary school with specific learning disabilities. Confirmatory factor analysis was used to identify the hypothesized constructs of the CORE Phonics Survey and predictive validity of the CORE Phonics Survey to predict students' success in word level reading and oral reading fluency one year later. The results of the analyses indicated the two-factor model representing two latent variables, alphabetic knowledge and decoding skills, provided the most appropriate fit to the given data, indicating that the hypothesized two factors of the CORE Phonics Survey demonstrate construct validity. The two constructs of CORE Phonics Survey significantly predicted students' fluency and decoding abilities as measured by norm-referenced assessments one year later. The practical implications and limitations of the present study are discussed.  相似文献   

Is the derivative a function? If so,how do we teach it?     

Jungeun Park 《Educational Studies in Mathematics》2015,89(2):233-250

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Martial Arts and Ideology of Hwarang,the Ancient Korean Warrior     

Kyoungho Park 《国际体育史杂志》2016,33(9):951-962

Abstract

From 37 BC to 676 AD, an era called the period of the Three States, ancient Korea was divided into Koguryo, Baekje and Shilla. Among these states, Shilla was the one that terminated the period and founded a single united nation. At the background of this unification, there were the prominent activities of Hwarang, an elite warrior group. The purpose of this study is to verify the characteristics of Hwarang’s martial arts and the ideological background that provided the foundation for the unification. Hwarang members usually ascended mountains or entered caves alone to hone their skills or were taught by senior Hwarang members and experts. Moreover, considering that the members of this group included monks, it is surmized that the monks supported the group as they practised their martial arts. National loyalty was regarded as the ultimate virtue. Due to the influence from Buddhism, Hwarang evolved into a loyal association where the members dedicated their lives to the nation. After many years, this ideology is currently receiving a great deal of attention and it is being used in a variety of educational fields. The ideological characteristics of Hwarang are part of Korea's cultural heritage and deserve academic attention.  相似文献   

Development of professional engineers' authentic contexts in blended learning environments     

Kyungsun Park  Sunhee Park 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(1):E14-E18

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Developmental changes in the relationship between magnitude acuities and mathematical achievement in elementary school children     

Yunji Park 《教育心理学》2017,37(7):873-887

The present study examined the developmental change in number and length acuities and their respective relationship with achievement in various domains of mathematics in second vs. fourth graders. Length acuity was measured with a comparison task, in which participants were asked to choose the longer between a pair of lines. Number acuity was measured with a comparison task, in which the participants were asked to choose the more numerous between a pair of dot arrays. Within each grade, length acuity was more precise compared to number acuity. Number acuity was higher in fourth compared to second grade, but length acuity did not differ between grades manifesting a ceiling effect. In second grade, only length acuity was correlated with overall math achievement, especially Geometry and Arithmetic. In fourth grade, only number acuity was correlated with overall mathematical achievement, especially Number Concept and Applied Problems. Taken together, the present study demonstrates that the relationship between magnitude acuities and math achievement dynamically change over the course of elementary school years and that the strength of this relationship may depend on the type of magnitude and the domain of mathematics.  相似文献   

English-medium teaching in Korean higher education: policy debates and reality     

Kiyong Byun  Huijung Chu  Minjung Kim  Innwoo Park  Suhong Kim  Juyoung Jung 《Higher Education》2011,62(4):431-449

This study critically examined the effectiveness of English medium instruction (EMI) policy within the context of Korean higher education, putting a special focus on its implementation strategy. The data for this study were mainly drawn from student opinion surveys and focus group interviews conducted by the CTL (Center for Teaching and Learning) at KU. The research teams also carried out supplementary interviews with both professors and students. The results indicate that, although the EMI policy seems to have produced, in general, positive outcomes (i.e., with the overall satisfaction level with EMI or its overall effectiveness in improving students’ English proficiency), the compulsory enforcement of EMI without regard to students’/instructors’ language proficiency, the lack of a much-needed support system and appropriate instructors to conduct EMI classes, and the unilateral implementation of EMI across academic disciplines have brought about a number of side effects. Based on these findings, the study recommends for future EMI policy implementation (1) a more flexible approach, considering students’ language proficiency and career plans and the characteristics of various academic disciplines and (2) more thorough preparation to implement the EMI policy (i.e., examination of the human and financial resources available for the institution concerned).  相似文献