• Title/Summary/Keyword: Science task research

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An Examination of the Mediation Effect of Self-Regulated Learning Strategy on Learning Outcome in Engineering Capstone Design Course (공과대학 캡스톤 디자인의 학습성과에 대한 자기조절학습전략의 매개효과 검증)

  • Kim, Na-Young;Lee, So Young
    • Journal of Engineering Education Research
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    • v.20 no.5
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    • pp.34-42
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    • 2017
  • This study aimed to identify the causal relationships among self-regulated learning strategy, problem solving efficacy, task value and learning outcome, and mediation effect of self-regulated learning strategy in engineering capstone design course. The data were collected from 363 university students who enrolled in capstone design courses and analyzed using structural equation modeling method. The results were: first, problem-solving efficacy and task value exerted significant effects on self-regulated learning strategy. Second, self-regulated learning strategy exerted significant effects on learning outcome, but problem-solving efficacy and task value did not. Third, problem-solving efficacy and task value showed significant indirect effects on learning outcome, which confirmed that self-regulated learning strategy fully mediated between two exogenous variables and learning outcome.

Independent Component Analysis of the Event-Related Potential during Visual Oddball Tasks with Multiple Difficulty Levels (다중 난이도를 갖는 시각적 Oddball 작업 수행 시 사상관련전위의 독립요소분석)

  • Kim, Ja-Hyun;Yoon, Jin;Kim, Kyung-Hwan
    • Journal of Biomedical Engineering Research
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    • v.29 no.1
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    • pp.73-81
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    • 2008
  • The purpose of this study is to observe the brain activity patterns during visual oddball tasks with two difficulty levels by the analysis of high-density event-related potential (ERP). Along with conventional statistical analysis of averaged ERP waveforms, we applied independent component analysis (ICA) for the individual, single-trial analysis and verified its effectiveness. We could identify multiple ERP components such as early visual components (P1, N1), and two components which seem to be important task-related components and showed difficulty-dependent variability (P2, P300). The P2 was found around central region at $180{\sim}220ms$, and the P300 was found globally at $300{\sim}500ms$ poststimulus. As the task became difficult, the P2 amplitude increased, and the P300 amplitude decreased. After single-trial ERPs were decomposed into multiple independent components (ICs), several ICs resulting from P2 and P300 sources were identified. These ICs were projected onto scalp electrodes and the projected ICs were statistically compared according to two task difficulties. For most subjects, the results obtained from single-trial/individual analysis using ICA gave the tendencies of amplitude change that are similar to the averaged ERP analysis for most subjects. The temporal pattern and number of ICs corresponding to ${\mu}$ rhythm was not dependent on the task difficulty. It seems that the motor response was not affected by the task difficulty.

Investigation of Cognitive Model of Task Commitment on Biology Classification Inquiry (생물 분류 탐구에서 과제 집착의 인지적 모형 규명)

  • Kwon, Seung-Hyuk;Kwon, Yong-Ju
    • Journal of Science Education
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    • v.37 no.1
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    • pp.170-185
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    • 2013
  • The purpose of this study is to investigate a cognitive model of task commitment on biology classification inquiry. To achieve this goal, first, this study analyzed several literatures on task commitment in biology inquiry, and invented the tentative model of the task commitment. To investigate a tentative model invented, 2 main tasks were developed. These tasks were administered to 8 high-school students, first grade. Raw protocols were collected by thinking aloud method and a retrospective interview method. Collected protocols were converted to segmented protocols and coded by analyzing frame based invented model. The codes were analyzed. As a result, some problems were discovered, tentative model were revised. New analyzing frame based on Improved model were composed, and raw protocols were re-analyzed. Finally, a cognitive model of task commitment on biology classification inquiry was investigated. The investigated cognitive model of task commitment on biology classification inquiry was constructed 3 steps, 'Task commitment Induction', 'Task commitment Reinforcement', 'Task commitment Maintenance'. And each steps were consisted of several sub-factor. And commitment component were changed in each steps. Through this results, base information for strategy that improvement task commitment on biology classification inquiry is provided. Furthermore, the cognitive model of task commitment on biology classification inquiry will assist on evaluation and feedback by stage on task commitment.

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The Distribution Role of Entrepreneurship Mindset and Task Technology Fit: An Extended Model of Theory of Planned Behavior

  • RUSTIANA, Yohana;MOHD, Othman bin;MOHAMAD, Norhidayah binti
    • Journal of Distribution Science
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    • v.20 no.5
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    • pp.85-96
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    • 2022
  • Purpose: This study aims to dissemination a new concept based on empirical research on enhancing entrepreneurship intention (EI) in the theory of planned behavior (TPB) through entrepreneurship mindset (EM) and task technology fit (TTF). The TTF is a moderating variable in strengthening the relationship between EM and EI. Research design, data, and methodology: This research design was quantitative research. The respondents were 202 students from Malaysia and Indonesia who had filled out and collected an online questionnaire in Microsoft form. Three hypotheses examined the direct influence and the indirect impact of EM on EI through antecedent variables of TPB, and the effect of TTF as moderating variable to enhance the relationship between EM and EI. The data was analyzed using the WarpPLS version 7.0. Results: The result showed that EM had a significant impact on the students' EI. The interaction of EM and TTF was significantly able to improve EI. Conclusions: The findings contributed new ideas to develop the theoretical framework of the TPB model and were able be utilized by lecturers to consider the integration of EM and TTF in the model. The novelty of this study elaborated the EM and TTF variables as an extended model of the TPB.

Effects of Secondary Task on Driving Performance -Control of Vehicle and Analysis of Motion signal- (동시과제가 운전 수행 능력에 미치는 영향 -차량 통제 및 동작신호 해석을 중심으로-)

  • Mun, Kyung-Ryoul;Choi, Jin-Seung;Kang, Dong-Won;Bang, Yun-Hwan;Kim, Han-Soo;Lee, Su-Jung;Yang, Jae-Woong;Kim, Ji-Hye;Choi, Mi-Hyun;Ji, Doo-Hwan;Min, Byung-Chan;Chung, Soon-Cheol;Taek, Gye-Rae
    • Science of Emotion and Sensibility
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    • v.13 no.4
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    • pp.613-620
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    • 2010
  • The purpose of this study was to quantitatively evaluate the effects of the secondary task while simulated driving using the variable indicating control of vehicle and smoothness of motion. Fifteen healthy adults having 1~2years driving experience were participated. 9 markers were attached on the subjects' upper(shoulder, elbow, Wrist) and lower(knee, ankle, toe) limbs and all subjects were instructed to keep the 30m distance with the front vehicle running at 80km/hr speed. Sending text message(STM) and searching navigation(SN) were selected as the secondary task. Experiment consisted of driving alone for 1 min and driving with secondary task for 1 min, and was defined driving and cognition blocks respectively. To indicate the effects of secondary task, coefficient of variation of distance between vehicles and lane keeping(APCV and MLCV) and jerk-cost function(JC) were analyzed. APCV was increased by 222.1% in SN block. MLCV was increased by 318.2% in STM and 308.4% in SN. JC were increased at the drivers' elbow, knee, ankle and toe, especially the total mean JC of lower limbs were increased by 218.2% in STM and 294.7% in SN. Conclusively, Performing secondary tasks while driving decreased the smoothness of motion with increased JC and disturbed the control of vehicle with increased APCV and MLCV.

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Variability of Practice Effects in Transfer of Photoelectric Rotary Pursuit Task

  • Jeon, Hye-Seon
    • Physical Therapy Korea
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    • v.12 no.4
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    • pp.7-11
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    • 2005
  • The purposes of this study were to investigate the effects of variability of training on the acquisition of motor skill of closed loop type tracking task using Rotary Pursuit, and to determine if there was a bilateral transfer effect to the non-dominant hand following practice with the dominant hand. Twelve healthy volunteer students (5 males and 7 females, aged 25 to 37) were randomly divided into a constant practice group and a variable practice group. A photoelectric rotary pursuit apparatus with stop clock and repeat cycle timer by Lafayette Instrumentation Co. was used for this study. Rotary pursuit is a closed loop task in which a subject attempts to keep a photoelectric stylus on a lighted target in motion. Subjects performed the clockwise circular pursuit task while standing. Experimental procedure was divided into three sessions, namely, pre-test, training, and post-test. The constant group practiced all 60 trials at 30 rpm. Variable practice group did a varied practice session with 15 trials at speeds of 20 rpm, 26 rpm, 34 rpm, and 46 rpm. No one in either group practiced with their non-dominant arm. A Mann-Whitney test and a Wilcoxon Signed Ranks test were used for statistical analyses. The results of this study showed no different training effect between groups on the post-test with the dominant hand. However, bilateral transfer effect of rotary pursuit task between hands was demonstrated. Possible mechanisms are discussed.

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A Comprehensive Model for Measuring Information Systems Performance (포괄적인 정보시스템 성과평가모형에 관한 연구)

  • An Bong-Geun;Ju Ki-Jung;Kwon Hae-Ik
    • Korean Management Science Review
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    • v.21 no.2
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    • pp.111-122
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    • 2004
  • Measuring performance of corporate information system has become one of the core issues in that development of the information system requires substantial amount of investments and the system works as a crucial leverage to enhance competitive edge. Most of the previous researches for performance of the information system have narrow and limited focus on such as the effect of user satisfaction and productivity. This paper suggests a model to measures the comprehensive performance which is classified as user scope (user involvement and satisfaction), operational scope (task productivity, task innovation, customer satisfaction, management control) and efficiency scope (financial performance), and to represent the relationship among the scopes by the path analysis model. Followings are conclusions from statistical hypothesis test of the model: (i) user involvement through user satisfaction has positive effect on all the performances in the operational scope, (ii) task innovation and customer satisfaction in the operational scope has statistically significant impact on financial performance but task productivity and management control do not. This conclusion indicates that task productivity and management control has the long term effect in nature, and evaluation of the information system has managerial implication when it Is measured in comprehensive performance which includes internal operational performances as well as financial performance.

Current status of Myanmar food industry and reinforcement of Korea-Myanmar mutual cooperation through TASK project (미얀마 식품산업 현황과 TASK 사업을 통한 한-미얀마 상호협력 강화)

  • Hong, Seok-In
    • Food Science and Industry
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    • v.55 no.3
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    • pp.326-336
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    • 2022
  • Since the food industry, including the agricultural production, is the largest industrial sector in Myanmar, the Myanmar government and industry have a strong willingness to develop the food manufacturing industry despite the limitations of investment, production and technological level. Particularly, the Myanmar government recognizes that the agricultural product-based food industry is an essential element for national economic growth, and is promoting various policy efforts for the industrial development. Therefore, the overall status of the food industry in Myanmar has been reviewed in this study. Also, the TASK (Technology Advice and Solutions from Korea) project in the food processing sector as an ODA (official development assistance) program has been specifically addressed in order to strengthen bilateral cooperation between Korea and Myanmar in the near future.

Assessment of Dietitians in Elementary School Foodservice Program (급식학교 영양사의 직무개선을 위한 실태조사 및 평가)

  • 박영선
    • Korean journal of food and cookery science
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    • v.13 no.2
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    • pp.124-146
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    • 1997
  • The study was surveyed to evaluate the foodservice program. The survey was conducted based on instrument which was developed by reviewing previous research. The instrument was provided to 60 nutritionists at the elementary schools in Taegu area. The data include 4 major parts of task performance rate, delivery and service, menu management, and satisfaction of foodservice facilities. Data obtained from survey are analyzed by SPSS program. These results show that the performance rates of determination of nutritional needs and menu planning is high to 98.3% both and 23% of nutritionists don't perfomed nutrition education.

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A Study on the Developmental Tools of Performance Task for Information Literacy Instruction (정보활용교육을 위한 수행과제 개발 도구에 관한 연구)

  • Lee, Byeong-Ki
    • Journal of Korean Library and Information Science Society
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    • v.42 no.4
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    • pp.31-50
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    • 2011
  • In education, evaluation is an important element because instructor can judge the growth and development of students, it has been to bring about quality improvement in education. Performance assessment has emerged to overcome traditional evaluation such as paper test, multiple choice test. Performance assessment is an approach to measuring a student's status based on the way the student completes a specified task. Information literacy instruction is aimed at cultivating information literacy. Performance assessment suitable for measurement to status of Information literacy. In order to performance assessment, task should have the first. However, instructor is difficult to develop a good performance task to meet the assessment needs. Therefore, this research aims at suggesting the developmental tool of performance task applicable to Information literacy instruction. The proposed tool is a template type, consists of 4 steps, educational goals and learning objectives, knowledge and capabilities, task types, measurement and scoring criteria.