• Title/Summary/Keyword: Construct Validity

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Pre-service Elementary School Teachers' Self-efficacy on Science Teaching for the Underrepresented Students according to Background Factors (소외계층학생 과학학습지도에 대한 예비초등교사의 배경요인별 자기효능감)

  • Nam, Ilkyun;Im, Sungmin
    • Journal of Korean Elementary Science Education
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    • v.38 no.2
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    • pp.173-190
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    • 2019
  • The self-efficacy of pre-service teachers has been reported as a major factor in the instruction of the curriculum. In particular, considering the importance of science learning instruction for underrepresented students from the viewpoint of science education for all, pre-service elementary teachers' self-efficacy about science instruction for underrepresented students will be an important factor of science education for these students. The purpose of this study is to investigate the self-efficacy of pre-service elementary teachers in science instruction for underrepresented students. To this end, the science teaching and learning self-efficacy test tool (Lee & Im, 2010) was revised in accordance with the context of science teaching for underrepresented students into a total of 24 items using 5 Likert scales. Through using the test tool consists of 3 dimensions as Learning Efficacy, Teaching Efficacy and Outcome Expectancy, 81 pre-service elementary teachers were surveyed and the reliability of test tool was verified through factor analysis and assessing construct validity by using the responses. As a result of the analysis, setting 5 as the standard perfect score, the average score of self-efficacy per dimension was shown as 3.29 in Learning Efficacy, 2.89 in Teaching Efficacy, and 3.39 in Outcome Expectancy. We confirmed the tendency and difference of self-efficacy of the research objects according to their background factors in which direct and indirect experience relating to the science education for the underrepresented students. Also, we verified that pre-service elementary teachers' interest in science subject matter, teaching science and their perception of the value of science learning had significant relations with self-efficacy on science teaching for underrepresented students.

The Effects of Productization, Organizational, Overseas Market Adaptation Competences on Export Performance: Focus on Korean Electromagnetic Wave Shielding Firms (기업의 제품화 역량, 조직역량, 해외시장 적응역량이 수출성과에 미치는 영향: 전자파 차폐 기업을 중심으로)

  • Park, Won-Cheol;Oh, Ka-Young
    • Asia-Pacific Journal of Business
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    • v.11 no.3
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    • pp.307-344
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    • 2020
  • Purpose - The purpose of this study is to examine effects of productization and organizational competences on export performance of electromagnetic shielding companies and to analyze moderating effects of overseas market adaptation competences. For this, hypotheses were established by reviewing previous studies and an empirical analysis was conducted for testing. Design/methodology/approach - For this study, a survey was conducted for workers at electromagnetic shielding companies and 250 valid responses out of 300 questionnaires were aquired. A frequency analysis of related variables was conducted. Through an exploratory factor analysis, validity and reliability tests of measuring tools were conducted and a descriptive statistics was analyzed for collected data result and hypotheses testing. Findings - A correlation analysis was conducted to examine relationships among variables. Construct, convergent and discriminant validities were analyzed after a confirmatory factor analysis and a multi-group confirmatory factor analysis. Finally, with a verified model, the hypotheses and the moderating effects were tested. The results are as follows: First, the productization competence has a positive effect on export performance; Second, the organizational competence has a positive effect on export performance. Especially, the organizational competence has more effect on export performance than the productization competence. Although a development of new technology and product is important in terms of performance, along with these competences, a way of acquiring new skills and knowledge, and internalization and adaptation in organizations have more effect on export performance. Third, overseas market adaptation competence moderates effects of organizational and productization competences. Research implications or Originality - It is necessary to seek out opportunities for workers to participate in actively, such as conferences and seminars, to strengthen organizational competence. It is strongly believed that a constant development of high quality product will contribute to export performance. Lastly, in a policy level, supports on SMEs by governments are to be strengthened by providing with finance and human resource.

Effects of the Characteristics of Franchise Educational Institution and Contents on the Educational Transition (프랜차이즈 교육기관과 교육콘텐츠의 특성이 교육전이에 미치는 영향)

  • Sung, Eun-Kung;Kim, Moon-Myoung;Seo, Min-Gyo
    • The Korean Journal of Franchise Management
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    • v.10 no.4
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    • pp.43-52
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    • 2019
  • Purpose: As a research on the effects of the characteristics of franchise educational institution and contents on the educational transition, commitment, and recommendation intention, this study aimed to suggest the basic data that could be used for the performance of educational training of franchise headquarters, and also to suggest an empirical research helpful for the development of actual educational system and the operation of curriculum for franchise educational institutions. Research design, data, and methodology: This study selected the trainees who recently completed the training in a franchise educational institution as the samples. The survey was conducted for 20 days from October 1st to October 20th 2018, targeting total 230 people, and total 207 questionnaires were collected (Missing value 23). To verify the validity of the measurement tool used for this study, this study reviewed the factor loading of each factor by conducting the confirmatory factor analysis(CFA), and then verified the average variance extracted(AVE) and the composite construct reliability(CCR). Lastly, the structural equation model(SEM) was verified based on the research hypotheses and research model. The SPSS Win Ver. 20.0 & AMOS 20.0 were used for every analysis of this study. Results: The results of this study could be summarized as follows. First, the reputation and interaction of the characteristics of franchise educational institution had significantly positive(+) effects on the educational transition. Second, all the sub - variables of educational contents such as job relevance, education method, and instructors' professionalism had positive(+) effects on the educational transition while the educational transition had positive effects on the organizational commitment, career commitment, and job commitment. Lastly, the organizational commitment and job commitment had positive(+) effects on the recommendation intention. Thus, the trainees with higher organizational commitment and job commitment in a franchise educational institution, showed higher intention to recommend the educational institution to others. Conclusions: The results of this study imply that the franchise educational institutions could increase the actual performance of education such as educational transition, commitment, and recommendation intention by increasing interactions within educational institutions and also designing effective educational contents, so that the trainees could highly perceive the educational transition of education.

UC Model with ARIMA Trend and Forecasting U.S. GDP (ARIMA 추세의 비관측요인 모형과 미국 GDP에 대한 예측력)

  • Lee, Young Soo
    • International Area Studies Review
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    • v.21 no.4
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    • pp.159-172
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    • 2017
  • In a typical trend-cycle decomposition of GDP, the trend component is usually assumed to follow a random walk process. This paper considers an ARIMA trend and assesses the validity of the ARIMA trend model. I construct univariate and bivariate unobserved-components(UC) models, allowing the ARIMA trend. Estimation results using U.S. data are favorable to the ARIMA trend models. I, also, compare the forecasting performance of the UC models. Dynamic pseudo-out-of-sample forecasting exercises are implemented with recursive estimations. I find that the bivariate model outperforms the univariate model, the smoothed estimates of trend and cycle components deliver smaller forecasting errors compared to the filtered estimates, and, most importantly, allowing for the ARIMA trend can lead to statistically significant gains in forecast accuracy, providing support for the ARIMA trend model. It is worthy of notice that trend shocks play the main source of the output fluctuation if the ARIMA trend is allowed in the UC model.

Experimental Analysis of Liquefaction Resistance Characteristics of Silica Sand Used in Earthquake Simulation Tests (국내 지진 모의시험에 이용되는 규사의 액상화 저항특성에 관한 실험적 분석)

  • Choi, Jaesoon;Jin, Yunhong;Baek, Woohyun
    • Journal of the Korean GEO-environmental Society
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    • v.23 no.5
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    • pp.5-13
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    • 2022
  • In this study, dynamic characteristics and liquefaction resistance characteristics of silica sand which is used to simulate sandy layer were conducted using the cyclic triaxial test according to the relative density difference. The difference in liquefaction resistance with the relative density was confirmed through the test results, which the relative density conditions were changed to 40%, 60%, and 80%, and the cyclic resistance ratio (CRR) curve of the silica sand was obtained. In addition, in order to examine the validity of the liquefaction resistance ratio (CRR) curve, artificial silica sand ground was created, and liquefaction potential was evaluated through the simple assessment method and the detailed assessment method, and the safety factors of each were compared.

The Difference of Invariance, Reliability of The Student Engagement Scale (ESE) In Distance-Learning During Covid-19 Pandemic in Light of Some Students' Characteristics

  • Almaleki, Deyab A.;Alzahrani, Abdulrahman J.;Alkhairi, Mohammed A.;Albalawi, Farhan A.;Albogami, Hosin A.;Alhajory, Easa S.;Readi, Wadea A.;Idrees, Mohammed A.;Alshamrani, Saleh M.;Alwusaidi, Osama A.
    • International Journal of Computer Science & Network Security
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    • v.22 no.8
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    • pp.7-14
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    • 2022
  • This study aimed to test the factor structure of the measure of student participation in distance education. The study population consisted of all teachers in public education and faculty members in higher education in the Kingdom of Saudi Arabia by applying it to a sample of bachelor's and graduate students at the college of Education at umm al-Qura University. The (ESE) was applied to a random sample representing the study population consisting of (216) respondents. The results of the study showed that the scale consists of three main factors, with showed a high degree of construct validity through fit indices of the confirmatory factor analysis. The results have shown a gradual consistency of the measure's invariance that reaches the high level of the Measurement Invariance across the gender and study groups variables.

Development of Untact Instruction Adaptability Test Tool (비대면 수업적응력 검사도구 개발)

  • Shin, Soo-Bum
    • Journal of Creative Information Culture
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    • v.7 no.3
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    • pp.117-128
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    • 2021
  • The purpose of this study is to develop a test tool to find out the ability of middle and high school students to adapt to untact instruction. As a result of the extraction, a untact instructional adaptability test paper was created with 24 questions of 6 factors: tool use, responsibility, concentration, confidence, adaptability, and cooperation. The results of the analysis of the goodness of the test are as follows. First, the reliability coefficient of the internal consistency of the item was found to be .888 for the entire Chronbach's α, and the reliability range for each domain was .621 to .854, which was sufficiently reliable. Secondly, the results of Construct Validity by confirmatory factor analysis are in the good categories as absolute fit indices RMSEA=.0108 and SRMR=.0794 in the CFA model. It was confirmed that it properly included the characteristics you want to see.

Scale Development and Validation to Measure Occupational Health Literacy Among Thai Informal Workers

  • Suthakorn, Weeraporn;Songkham, Wanpen;Tantranont, Kunlayanee;Srisuphan, Wichit;Sakarinkhul, Pokin;Dhatsuwan, Jakkapob
    • Safety and Health at Work
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    • v.11 no.4
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    • pp.526-532
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    • 2020
  • Background: The high incidence of work-related diseases and injuries among day-laborers and workers with no legal contracts (informal workers) has received the attention of the Thai authorities. Workers' low occupational health literacy (OHL) has been reasoned as one contributing factor. Absence of a valid tool has prevented assessment of informal workers' OHL. The aim of this study was to create a valid and reliable Occupational Health Literacy Scale within the context of Thai working culture (TOHLS-IF). Methods: This study used the mixed method approach to develop TOHLS-IF. Questions were generated using in-depth interviews and an extensive review of the literature. Experts' assessment confirmed the content validity of TOHLS-IF. The scales of its psychometric properties were assessed in a sample of 400 informal workers using cluster random sampling. Results: The final version of the TOHLS-IF comprises 38 items within 4 dimensions: Ability to Gain Access, Understanding, Evaluation, and Use of occupational health and safety information. Factor analysis identified items explaining 50.22% of the total variance. The final confirmatory analysis confirmed the model estimates were satisfactory for the construct. TOHLS-IF demonstrated a high internal consistency and satisfactory reliability (Cronbach's alpha = .98). Conclusion: The TOHLS-IF is a valid and reliable instrument to assess informal workers' OHL. The structural dimensions of this instrument are based on the concept of health literacy and Thai culture. Thai health professionals are encouraged to benefit from this instrument to assess their workers' OHL and apply findings as guidelines for effective occupational health and safety interventions.

Development of Teaching Competency Scales: Focused on CTL Teaching Program (대학 CTL 교수지원프로그램 맞춤형 교수역량진단도구 개발)

  • Kang, Dae-Sik
    • Journal of Practical Engineering Education
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    • v.14 no.1
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    • pp.49-59
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    • 2022
  • This study was conducted to develop a teaching competency scales customized for teaching programs conducted by Center for Teaching & Learning at A University. To achieve this purpose, a preliminary study was set up, which consists of three competency groups (basic competency, practice competency, innovation competency) and 26 learning competency factors through a review of previous studies. In order to verify the reliability and validity of the provisional teaching competency scales, an online survey was conducted on A university teachers in September 2020, The collected questionnaire data were organized and exploratory factor analysis and confirmatory factor analysis were conducted. As a result of exploratory factor analysis, 26 teaching competency was reduced to 17. As a result of the confirmatory factor analysis, the model was found to be good, Also, as a result of analyzing the construct reliability and AVE of the confirmed teaching competency factors, all 17 factors showed a good level of .7 or more. The teaching competency scales developed through this study can be used as basic data for performance evaluation and development of new programs of CTL teaching program.

Development of Performance Measures Based on the Nursing Process for Prevention and Management of Pressure Ulcers, Falls and Pain (욕창, 낙상예방 및 통증간호의 간호과정 적용 평가도구 개발)

  • Kim, Keum Soon;Kim, Jin A;Kim, Moon Sook;Kim, Yu Jeong;Kim, Eul Soon;Park, Kwang Ok;Song, Mal Soon;Yi, Young Hee;Lee, In Ok;Jung, Yoen Yi;Choi, Yun Kyoung
    • Journal of Korean Clinical Nursing Research
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    • v.15 no.1
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    • pp.133-147
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    • 2009
  • Purpose: This study was conducted to construct evidence based clinical guidelines and to develop nursing process based performance measures for prevention and management of pressure ulcers, falls and pain. Method: Clinical guidelines were drafted through a comprehensive review of relevant literature, national guidelines and hospital protocols. The proposed guidelines were reviewed by a panel of experts and 90 hospital nurses, and refined on the basis of their suggestions. Nursing process based performance measures were developed based on the clinical guidelines and content validity was examined by surveys from 90 hospital nurses. Results: All items, except timetable for position change and pressure ulcer nursing record, in the guidelines for prevention and management of pressure ulcer were appropriate. Most items, except fall risk assessment tools, were appropriate for the guidelines of fall prevention. All other items, except the purpose of pain management, were appropriate for the guidelines of pain management. Performance measures developed in this study were acceptable as a tool to evaluate quality of nursing care. Conclusion: Nursing process based performance measures provide important indicators to monitor whether necessary nursing care is implemented and can be used as the primary resources to improve quality of nursing services.