• Title/Summary/Keyword: Measure theory

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Responsiveness Comparisons of Self-Report Versus Therapist-Scored Functional Capacity for Workers With Low Back Pain

  • Choi, Bongsam;Park, So-Yeon
    • Physical Therapy Korea
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    • v.19 no.3
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    • pp.91-97
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    • 2012
  • The primary aim of this study was to compare responsiveness of self-report by worker and therapist-scored functional capacity instrument. Self-report and therapist-scored interval-level person measures and item difficulties were compared at admission and discharge. Therapist and worker ratings were collected on 230 clients from 27 rehabilitation sites using the newly developed Occupational Rehabilitation Data Base (ORDB) functional capacity instrument. ORDB comprises several subscales measuring relevant variables of "a return-to-work model" in work-related rehabilitation clinics. The functional capacity scale deals with 10 DOT job factors. The rating scale categories were 1-severely impaired, 2-moderately impaired, 3-mildly impaired, and 4-not impaired. Only data from clients with low back pain (n=98) with complete data (both admission and discharge scores) were used for the present study. Therapists and workers completed the functional capacity instrument at admission and discharge. Rasch analysis [1-parameter item response theory model (IRT)] was applied to calibrate item difficulty and person ability measure of therapist and workers ratings. Effect sizes for therapist and self-report ratings were slightly different, .69 and .30, respectively. Therapist and worker ratings were more consistent at discharge (r=.54) than at admission (r=.32). Workers have a tendency to be more severe in their ratings (show higher item difficulties) than therapists at admission and discharge. Therapists and workers report similar magnitudes of improvement following treatment program. These findings challenge the belief that injured workers may unreliable source for monitoring therapeutic outcomes. Self-report measures have the advantage of conserving therapist time for treatment (versus evaluation). While the therapist and self-report ratings are comparable at discharge, there is less consistency at admission. Comparable therapist-worker ratings may be achieved by controlling for rating severity using IRT methodologies.

Psychometrics of Children′s Health Locus of Control Scale for Korean Children (아동건강통제위 척도에 대한 신뢰도 및 타당도 조사)

  • Shin Heesun;Jung Yun
    • Child Health Nursing Research
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    • v.4 no.1
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    • pp.105-115
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    • 1998
  • The purpose of the study was to test the reliability and validity of the Korean version of Children's Health Locus of Control Scale (CHLC), an instrument designed to measure health locus of control in children aged 7 to 12. The scale was administered to 467 children in grades 4 to 6, enrolled in 2 elementary schools located in city. The mean age of the subject was 10.03 (SD=1.33). The findings were as follows: 1. Cronbach alpha coefficient for internal consistency was .69 for the total, and .67, .65, and .56 on the respective subscales. 2. Construct validity was supported through factorial isolation of three theory consistent subscales : internal, chance, and powerful others. Two items did not fit well with the originally developed subscale. The total percent of varience explained by 3 factors was 34.5%. The result of the factor analysis according to Kaiser's criterion revealed that the scale was consisted of 5 factors. But, The items of the subscales were rather inconsistent with the dimensions of the locus of control concept. 3. There were significant differences according to parent's educational level and occupation, and birth order on the scores of the CHLC. There were no significant differences according to grade level and sex. 4. The score of the CHLC was significantly correlated with the self concept of the children(r=.14, p<.001). The result indicated that the Korean version of Children's Health Locus of Control Scale was valid and reliable in measuring health locus of control concept in children, even though luther research is required to reconfirm and increase the reliability of the instrument. CHLC could be used for study explaining the health related behavior of the children and research project related to health education program.

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Shared Value Expectation on Lifelong Education (평생교육에 대한 공유기대가치 연구)

  • Kim, Chul-Ho
    • Journal of Digital Convergence
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    • v.13 no.12
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    • pp.325-336
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    • 2015
  • The purpose of this study is to confirm the components of users' shared value expectation(SVE) on lifelong education through convergent approaches. After reviewing primary data and collecting secondary data with quantitative and qualitative research methodologies, the components of users' SVE on lifelong education were categorized into 10 perspectives, 27 measured variables, and 81 questions. After conducting a confirmatory factor analysis, the latent measurement model was confirmed as reasonable. Internal reliability, construct convergent discriminant validity were also confirmed as reasonable. In a viewpoint that builds interdisciplinary theory, this research may help grasp users' SVE on lifelong education with interdisciplinary approaches. In a strategic viewpoint, this study may contribute to both understanding categorized users' value expectation and planning/executing suitable programs that can meet the expectations. In a managerial viewpoint, this result may help measure the effectiveness of SVE on lifelong education quantitatively.

Measures for Activating Participation of Private Forest Owners in Leading Forest Management Zone (선도산림경영단지의 산주참여 확대 방안)

  • Kim, Young-Hwan;Bae, Jae-Soo;Cho, Min-Woo
    • Journal of Korean Society of Forest Science
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    • v.106 no.4
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    • pp.441-449
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    • 2017
  • Participation of forest owners is essential for effective management of private forests. This study aimed to find a measure to activate participation of private forest owners in the Leading Forest Management Zone (LFMZ). In-depth interview was conducted to check the participation level of forest owners within the LFMZ and the participation level was evaluated based on the Arnstein's eight-rungs theory in this study. The results showed that the participation of private forest owners in the LFMZ is perfunctory and their influence in the decision-making process is quite limited. Therefore, it is necessary to develop a system in which forest owners can involve in the decision-making process in an official manner. In this study, we suggested to make a partnership between local forest manager and private forest owners to discuss management activities and budgets in the LFMZ. However, since only a few active private forest owners were surveyed in this study, it is hard to consider their opinions as those of whole forest owners in the LFMZ.

Determinants of Welfare Attitudes towards Healthcare Services: Focusing on Self-Interest, Symbolic Attitude, and Sociotropic Perceptions (의료서비스에 대한 복지태도의 결정요인: 자기이해, 상징적 태도, 사회지향적 인식요인들을 중심으로)

  • Seo, Wook-Young;Moon, Daseul;Chung, Haejoo
    • Health Policy and Management
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    • v.27 no.4
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    • pp.324-335
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    • 2017
  • Background: The aim of this study is to analyze determinants of welfare attitudes toward healthcare services in South Korea, using three main theories: self-interest (positive welfare attitudes if the policy fulfills people's personal interests), symbolic attitudes (positive welfare attitudes if the person is politically progressive or egalitarian), and sociotropic perception (positive welfare attitudes if the person experienced positive aggregated collective experiences of societal events and trends regarding the policy). Although the definition of the welfare attitude is rather ambiguous in literatures, in this investigation, we operationalize the concept as the 'willingness to pay higher taxes to improve the level of health care services for all people in Korea' which shows individuals' actional propensity. Methods: We used the health module from the International Social Survey Program 2011 for the analysis (N= 1,391). Five logistic regression models were built successively using two variables for each theory to measure key concepts of self-interest, symbolic attitudes, and sociotropic perceptions as independent variables. Results: The result showed self-interest and symbolic attitudes factors to be strong determinants of welfare attitudes towards healthcare services in South Korea, whereas sociotropic perception factors have inconsistent effects. Conclusion: For a more politically elaborated healthcare reform in South Korea and elsewhere, there needs to be further research on various dimensions and determinants of welfare attitudes to understand popular basis of welfare expansion, especially in the era of inequality.

Middle School Science Gifted Students' Knowledge state Analysis of Light Concept Through Evaluation Questions (평가 문항을 통한 중학교 과학영재 학생들의 빛 개념 지식상태 분석)

  • Lee, Hyeong-Jae;Ha, Ji-Seon;Park, Sang-Tae
    • Journal of Gifted/Talented Education
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    • v.21 no.4
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    • pp.861-884
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    • 2011
  • In this study, we developed and applied 15 evaluation questions about light to 30 middle school students in K University Science Education Institute for the Gifted. Then we used the theory of knowledge space and analyzed the middle school Science Gifted Students' knowledge state about light. By schematizing the hierarchy from it, we intended to not only measure students' knowledge state about light, but use it as the basic materials to improve teaching methods. To achieve the purpose of this study, we analyzed the evaluation results and individual knowledge state and hierarchy of questions. As a result, there were different knowledge structures in the individual, and we found that we should diagnose them differently. In addition, we have had implications that it has the connection with each questions and the individual knowledge state.

Development and Validity of Creative Problem Solving Profile Inventory (CPSPI) (창의적 문제해결 프로파일 검사(CPSPI)의 개발 및 타당화)

  • Lee, Hwasun;Pyo, Jungmin;Choe, Insoo
    • Journal of Gifted/Talented Education
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    • v.24 no.5
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    • pp.733-755
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    • 2014
  • This study aims to develop and validate Creative Problem Solving Profile Inventory (CPSPI) which is a scale to measure the creative thinking style, based on the CPS theory. For redeeming the limits of existing scales, this study developed an inventory which includes an evaluation for cognitive ability as well as cognitive preference and the stage to share an idea with others and persuade (Persuasion & communication stage). At the early stage, 7 factors (stages) and 82 items were developed and finally, 5 factors and 39 items were selected through item analysis and validation of construct validity. In conclusion, CPSPI will be used as an educational tool for self-development by knowing own's strengths and weaknesses in the creative problem-solving process, and help in displaying cooperative creativity by understanding other people and interaction, based on creative thinking profiles of group members.

Transverse Vibration Analysis of the Deploying Beam by Simulation and Experiment (시뮬레이션과 실험을 통한 전개하는 보의 횡 방향 진동 분석)

  • Kim, Jaewon;Zhu, Kefei;Chung, Jintai
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.25 no.12
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    • pp.866-873
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    • 2015
  • The transverse vibration of the deploying beam from rigid hub was analyzed by simulation and experiment. The linear governing equation of the deploying beam was obtained using the Euler-Bernoulli beam theory. To discretize the governing equation, the Galerkin method was used. After transforming the governing equation into the weak form, the weak form was discretized. The discretized equation was expressed by the matrix-vector form, and then the Newmark method was applied to simulate. To consider the damping effect of the beam, we conducted the modal test with various beam length. The mass proportional damping was selected by the relation of the first and second damping ratio. The proportional damping coefficient was calculated using the acquired natural frequency and damping ratio through the modal test. The experiment was set up to measure the transverse vibration of the deploying beam. The fixed beam at the carriage of the linear actuator was moved by moving the carriage. The transverse vibration of the deploying beam was observed by the Eulerian description near the hub. The deploying or retraction motion of the beam had the constant velocity and the velocity profile with acceleration and deceleration. We compared the transverse vibration results by the simulation and experiment. The observed response by the Eulerian description were analyzed.

Analysis of Meridians Energy change by Cupping Stimulation (부항자극에 대한 체표 경락.경혈의 생체에너지 변화 분석)

  • Kim, Soo-Byeong;Lee, Na-Ra;Kim, Young-Dae;Lim, Jong-Hyeon;Song, Gil-Soo;Jung, Byung-Jo;Lee, Yong-Heum
    • Korean Journal of Acupuncture
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    • v.27 no.4
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    • pp.49-57
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    • 2010
  • Objectives : The aim of this study is evaluation for significance of skin meridian-acupoints energy measurement system, and is verification of principle to measure the bio-ion charge on acupoints. Methods : To check a correlation between the MEP(Meridian Energy Potential) and bio-electric charge condition, ten acupoints(left/right BL meridian : BL13, BL15, BL18, BL20, BL23) were chosen. Based on basic theory concerning the upward trend of the bio-electric charge by cupping therapy, we measured MEP change before and after 600mmHg(80kPa) Negative pressure stimulation using cupping. Results : We could identify the correlation between MEP and the condition of bio-electric charge in acupoints. Also, we checked the balance or imbalance of left/right the MEP and unusual cases. Conclusions : We confirmed significance of proposed principle and meridian energy measurement system.

An Empirical Study of Factors Influencing on the Learning Effects of Perceived Characteristics of Multimedia Media (멀티미디어 매체의 지각된 특성이 학습 효과에 미치는 영향에 관한 실증적 연구)

  • 신호균;김병곤;김종욱
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 1999.12a
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    • pp.301-313
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    • 1999
  • Recently, the rabid development of information technology has brought enormous changes in education. Consolidation of communications and multimedia technologies are enabling the new educational paradigm such as distance learning and virtual education. Furthermore, many studies in the education engineering field report that teaching using multimedia technologies more enhances students' performance than the traditional instructor-teaching method. However, little research regarding the education using multimedia has been done in the MIS filed. None of multimedia-related studies could be found in the top-ranked MIS journals published in Korea for the last five years, and only a few studies were found even worldwide. In this regard, the purpose of this study is to investigate which features of multimedia software are most important to enhance the teaching results of students. From the previous research, we found out the specific features of the educational multimedia software which are considered to affect the students'performance, and defined the research variables related to those educational software features. And, based on the constructivism and motivation theory of the education engineering field a theoretical research model and research hypotheses were developed. Perceived usefulness of the class and a student's perceived interests in the class were used as surrogate variables to measure teaching performance. Total 277 students participated separately in one of the two multimedia classes which have continued for three weeks. One was C programming language class and the other was multimedia CD-title development class. Each student listened for the multimedia session of the class using multimedia software and, at the end of the multimedia session, answered the survey questionnaire. The results of the study show that motivation to the class and the contents of education were statistically significant to the students'performance in the class. That implies, not only in the traditional instructor-teaching method but also in the multimedia class, that the contents of education itself and student's motivation to the class are most important to raise instructional results.

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