• 제목/요약/키워드: Construct Ability

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Development of the 「Authentic Parental Competence Scale」 for Mothers with School-age Children (학령기 자녀를 둔 어머니의 「부모 참 역량」척도 개발)

  • Chung, Kai-Sook;Goh, Eun-Kyung;Park, Hee-Kyung;Cha, Jee-Ryang
    • Journal of Families and Better Life
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    • v.32 no.2
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    • pp.53-75
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    • 2014
  • The purpose of this study was to develop and validate the "Authentic Parental Competence Scale" for mothers with school-age children. Based on a literature review, the study found that 'authentic parental competence' could be divided into parenting comperence, self-system competence, and social competence. In addition, the scale comprised three factors consisting of 43. The study collected data through behavior event interview(BEI), focus group interview(FGI), and three times Delphi investigation. The scale for mothers of school-age children consisted of a total of 129 items, which included three different dimensions (knowledge, skill, and attitude), and four factors were extracted from factor analysis following a survey of 362 mothers. The factors were labeled as "ability of developmental positive parenting," "ability of playing a role as a citizen and making social contributions," "ability of self-understanding and interpersonal relations," and "ability of self-growth and self-determination." In addition, the results revealed that the "Authentic Parental Competence Scale" showed an appropriate level of construct validity, reliability of the scales, distribution of item response, and item discrimination.

Application of AIG Implemented within CLASS Software for Generating Cognitive Test Item Models

  • SA, Seungyeon;RYOO, Hyun Suk;RYOO, Ji Hoon
    • Educational Technology International
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    • v.23 no.2
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    • pp.157-181
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    • 2022
  • Scale scores for cognitive domains have been used as an important indicator for both academic achievement and clinical diagnosis. For example, in education, Cognitive Abilities Test (CogAT) has been used to measure student's capability in academic learning. In a clinical setting, Cognitive Impairment Screening Test utilizes items measuring cognitive ability as a dementia screening test. We demonstrated a procedure of generating cognitive ability test items similar as in CogAT but the theory associated with the generation is totally different. When creating cognitive test items, we applied automatic item generation (AIG) that reduces errors in predictions of cognitive ability but attains higher reliability. We selected two cognitive ability test items, categorized as a time estimation item for measuring quantitative reasoning and a paper-folding item for measuring visualization. As CogAT has widely used as a cognitive measurement test, developing an AIG-based cognitive test items will greatly contribute to education field. Since CLASS is the only LMS including AIG technology, we used it for the AIG software to construct item models. The purpose of this study is to demonstrate the item generation process using AIG implemented within CLASS, along with proving quantitative and qualitative strengths of AIG. In result, we confirmed that more than 10,000 items could be made by a single item model in the quantitative aspect and the validity of items could be assured by the procedure based on ECD and AE in the qualitative aspect. This reliable item generation process based on item models would be the key of developing accurate cognitive measurement tests.

Debate on the irrigation water saving and the conservation of eco-system (논 관개용수 절수와 유역생태계 보전의 양면성)

  • Kim, Tai-Cheol;Kim, Byung-Chan;Lee, Seong-Hee
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2002.10a
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    • pp.373-376
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    • 2002
  • It is reported that Korea is a county of water shortage. The government make plans to construct dam to cope with this problem. But, it become difficult to construct dam, because of public opinion of residents and objection of environmentalist. In the sense, the government set up new policy of demand-management which means water saving. It is known that the efficiency of agricultural water is so poor that the first target to save water is focussed on agricultural water. In the study, the function of agricultural water was evaluated and it is found that it is not a waste, but a good ability on eco-system by return flow.

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Female Customers' Trust on Internet Stores and its Relationships with Service Quality and Loyalty (인터넷 상점에 대한 여성고객의 신뢰와 서비스 품질$\cdot$고객 충성도 간의 관계)

  • Min Dong-Kwon
    • The Journal of Information Systems
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    • v.14 no.2
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    • pp.293-317
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    • 2005
  • Female customers form a major customer group for Internet shopping and their trust on Internet stores seems to be significantly related with their transactions. This paper focuses on female customers' trust on Internet stores, hypothesizing that online service quality has a positive impact on trust and that trust, in turn, together with service quality has a positive effect on loyalty. We investigate trust from three dimensions(benevolence, integrity, and ability) and at the same time, unlike existing research, treat service quality to have five dimensions (intangibles, reliability, responsiveness, assurance, and empathy) as known in SERVQUAL(Parasuraman et al., 1988). Survey data is obtained from the female college student sample. Our research model is justified in terms of construct validity, internal consistency, and goodness of fit. Research hypotheses are tested using SEM(Structural Equation Modeling). The results are as follows: First, assurance and empathy dimensions of service quality have significant impacts on benevolence/integrity dimension of trust. Second, out of the five service quality dimensions, only assurance has a positive effect on ability dimension of trust. Third, assurance dimension of service quality and ability dimension of trust are positively related with customer loyalty. The most important factors for female customers' loyalty are found to be assurance(service quality) and ability(trust). The significance of assurance is in line with findings from existing research. But its relationship with the trust dimensions is uncovered in this research, and the only dimension that impacts on ability is assurance. We find that female customers build trust about internet stores based on their ability rather than on their benevolence/integrity and that the female customers' perception on the internet stores' ability can be improved by higher service quality from the aspect of assurance. Importantly enough, these findings offer practical guidelines to Internet stores to boost female customers' loyalty.

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Reaction Research on the Visuospatial Ability and the Situation Awareness of Older Drivers in Driving (노인 운전자의 운전 중 시공간능력과 상황인식에 대한 반응)

  • Lim, Yongsuk;Lee, Jungwon
    • 한국노년학
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    • v.32 no.4
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    • pp.1087-1099
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    • 2012
  • The purpose of this paper is to examine how visuospatial ability affects the situation awareness for older drivers while driving. For this study, the Rey-Osterrith Complex Figure (ROCF) was used to measure the visuospatial ability of older drivers. The ROCF is used to measure visuospatial construct and memory abilities, and Real-Time Probes were used to measure the situation awareness with UC-win/Road simulation. Sixty drivers participated in this research (N = 30 older drivers, median = 70 years old and N = 30 younger drivers, median = 27 years old). Based on the results of this analysis, a repeated measure ANOVA was used to analyze the effect on each level of situation awareness related to visuospatial ability in driving. The results indicate that the visuospatial ability of older drivers serves as a crucial factor in determining the potential for older drivers to safely continue to drive. The results also imply the necessity of ROCF development to support and improve the visuospatial ability of older drivers.

A Proposal of Curriculum and Teaching Sequence for Seasonal Change by Exploring a Learning Progression (학습 발달과정 탐색을 통한 계절의 변화 교육과정 및 교수 계열 제안)

  • Heo, Jaewan;Lee, Kiyoung
    • Journal of the Korean earth science society
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    • v.39 no.3
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    • pp.260-274
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    • 2018
  • The purpose of this study was to propose curriculum and teaching sequence for seasonal change by exploring a learning progression. For the purpose, 4 steps of construct modeling approach (specifying construct, item design, outcome space, and measurement model) proposed by Wilson (2005) was applied. In the stage of specifying construct, 'length of shadow according to seasons', 'position of constellation according to seasons', 'seasons of the southern hemisphere and northern hemisphere', 'cause and phenomenon of seasonal change' were selected as the subconstructs of seasonal changes, and constructed a construct map showing the level of development from level 1 to level 4 for each subconstruct based on the results of the previous research. In the item design stage, we developed five assessment items consisting of 3 items in the form of C-E (choose and explain) and two items in the form of CR (constructed response), applied it to 383 elementary, middle and high school students. In the outcome space stage, the students' responses to the assessment items were categorized based on the construct map. The categories were classified into 4 levels according to student ability and scores of 1-4 were given. In the measurement model stage, we applied the partial credit model of the Rasch model and compared whether the learning pathway created from the results of students' response coincides with the construct map. Based on the results of the research, we modified the construct map and finally created hypothetical learning progression on seasonal change. Finally, we proposed an orientation of curriculum amendment and effective teaching sequence for seasonal change.

Development of Precast Concrete Method for Eco-Pillar Debris Barrier with Hollow Cross-Section (중공트랙형 단면의 프리캐스트 에코필라 사방댐 공법개발)

  • Kim, Hyun-Gi
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.3
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    • pp.542-552
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    • 2018
  • In this paper, the precast method of a concrete eco-pillar debris barrier was proposed to improve the construct ability and economic efficiency. The performance was validated by experimental and structural analysis. The steel debris barrier has a high construction cost and causes environmental damage with corrosion. The construction of a concrete eco-pillar debris barrier has been increased recently. On the other hand, there are no design standards regarding debris barriers in Korea, and debris barriers are being designed by the experience and sense of engineers. Therefore, in this study, a method to determine the design external forces was proposed and the design was performed by applying a hollow cross-section to the debris barrier. In addition, three types of connection methods of a concrete cantilever column with the maximum bending moment acts were proposed, and validation of the performance of each type was performed with a real-scale experiment. The experimental results showed that the type with loop reinforcement had the highest rigidity and the type with anchorage performance exceeded the maximum bending moment according to the ultimate load. In the manufacturing procedure of mock-up debris barriers, the type with an anchorage-bar was found to have superior construct ability.

Technique for Bridge Bearing Retrofit Using Wedge-Jack (교좌장치 겸용 웨지잭을 이용한 교좌장치 보수공법)

  • 백동명;유문식;임진석
    • Proceedings of the Korea Concrete Institute Conference
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    • 1999.10a
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    • pp.837-843
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    • 1999
  • A common hydraulic jack using brdige retrofit has a problem of increasing cost and time of construction to construct additionally temporary bent or concrete bracket, in case of insufficiency work space and release hydraulic pressure. To solve the problem, this technique is developed to alternate the bridge bearing in adequate inspection condition. After control maximum lift-height and minimum lift-force of no damage to super structure, the constructive technique is to alternate and repair the bridge bearing using the wedge jack with bridge bearing ability that is no release hydraulic pressure stopper, and able to reuse separable cylinder.

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Optimization of the Radial Basis Function Network Using Time-Frequency Localization (시간-주파수 분석을 이용한 방사 기준 함수 구조의 최적화)

  • 김성주;김용택;조현찬;전홍태
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2000.11a
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    • pp.459-462
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    • 2000
  • In this paper, we propose the initial optimized structure of the Radial Basis Function Network which is more simple in the part of the structure and converges more faster than Neural Network with the analysis method using Time-Frequency Localization. When we construct the hidden node with the Radial Basis Function whose localization is similar with an approximation target function in the plane of the Time and Frequency, we make a good decision of the initial structure having an ability of approximation.

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A Learning Algorithm of Fuzzy Neural Networks with Trapezoidal Fuzzy Weights

  • Lee, Kyu-Hee;Cho, Sung-Bae
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1998.06a
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    • pp.404-409
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    • 1998
  • In this paper, we propose a learning algorithm of fuzzy neural networks with trapezoidal fuzzy weights. This fuzzy neural networks can use fuzzy numbers as well as real numbers, and represent linguistic information better than standard neural networks. We construct trapezodal fuzzy weights by the composition of two triangles, and devise a learning algorithm using the two triangular membership functions, The results of computer simulations on numerical data show that the fuzzy neural networks have high fitting ability for target output.

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