• 아동학회지
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• 제29권5호
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• pp.51-63
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• 2008

The purpose of this research was to develop an scale to measure mathematics anxiety coping behavior of elementary school children. Of the first 45 items selected from a review of literature, 33 items were selected by content validation, modification and revision. Validity, reliability, and item discrimination was based in responses of 1,831 subjects. Data were analyzed by factor analysis, correlation, Cronbach's, $\alpha$, mean, standard deviation, percentages, and t-test. The resulting Scale of Children's Mathematics Anxiety Coping Behavior consisted of 26 items with 5 factors : active problem-solving, aggressive emotion expression, aversive coping, passive coping, and seeking social support. Cronbach's $\alpha$ ranged from .67 to .86 for five factors. T-test showed the 26 items of the scale to be discriminant.

• 간호행정학회지
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• 제22권3호
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• pp.270-278
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• 2016

Purpose: The purpose of this study was to develop a performance appraisal tool (PAT) for postoperative anesthesia care unit (PACU) nurses. Methods: This study was a descriptive, non-experimental methodological study. The PAT was developed through a literature review and tests for validity and reliability. Results: Subsequent to a review of the literature on nursing performance of PACU nurse, a 63 item questionnaire was developed. Through factor analysis, 61 items in 3 domains with 8 factors were derived. Cronbach's ${\alpha}$ coefficient of the final instrument was .99. Conclusion: This tool is an efficient PAT for PACU providing meaningful feedback for professional growth in PACU nurses.

• 전기학회논문지
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• 제67권3호
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• pp.479-484
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• 2018

This paper describes domestic technical standard of Photovoltaic(PV) PCS(Power Conditioning Systems)-Characteristics of the utility interface. This standard tests utility compatibility and personnel safety and equipment protection of PV inverter performance functions. Especially utility compatibility part includes test items of 1)voltage, current and frequency, 2)normal voltage operating range, 3)DC injection, 4)normal frequency operating range, 5)harmonics and 6)waveform distortion, 7)power factor of PV inverter. Therefore in this paper each test item of domestic technical standard is studied and analyzed and finally full tested by PV inverter performance function.

• 아동학회지
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• 제28권6호
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• pp.37-52
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• 2007

This study was planned to develop an Internet Game Addiction Scale for 9- to 12-year-old Korean children. Based on literature review and analysis of counseling cases, the concept of the internet game addiction was defined. Items of the scale were developed and then the content validity of the scale was examined by 20 professionals. Then a preliminary survey of 188 3rd to 6th grade students was made, and the main survey of 699 3rd to 6th grade students throughout Korea. The main results are as follows; [I] Internet Game Addiction Scale consists of 3 factors with 20 items : game-oriented life(6 items), tolerance & mastery loss(7 items), and withdrawal & emotional experience(7 items); [II] appropriateness of item mean and standard deviation was proved, a 3-factor structure confirmed through factorial analysis and cross validation; [III] appropriateness of the scale confirmed through criterion validity and reliability.

• Child Health Nursing Research
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• 제13권3호
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• pp.265-272
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• 2007

Purpose: The purpose of this study was to develop a Maternal-Fetal Interaction Belief Scale (MFIBS). Method: The research design was a methodological study. The items generated for this scale were drawn from a comprehensive literature review. Content validity was established for the MFIBS. The 26-item scale was developed to measure the construct of the MFIBS during pregnancy and tested on 186 pregnant women. Results: The final tool consist of 20 items which were sorted into 6 factors by factor analysis. The factors were identified as 'influence of pregnancy (5 items)', 'ability of fetus (3 items)', 'maternal-fetal interaction behavior (3 items)', 'practice of taegyo (3 items)', 'ability of infant (3 items)', and 'taemong (3 items)'. The six factors explained 62.37% of the total variance in the MFIBS. The Cronbach's alpha coefficient for internal consistency was .81 and the reliability of the subscales ranged from .60-.85 Guttman split-half coefficient was .66. Conclusions: This scale proves to be a effective, useful tool and suitable in Korean women for measuring the Maternal-Fetal Interaction Belief. Future studies are required for further refinement of the scale.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.569-574
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• 2002

As consumer's desire becomes various, agility of mold manufacturing is most important factor for competence of manufacturer. In common works to use commercial CAM system to generate tool path, some decision making process is required to produce optimal result of CAM systems, The paper proposes a methodology for computer-assisted tool selection procedures for various cutting type, such as rough, semi-rough and finish cuts. The system provides assist-tool-items for machining of design model part of injection meld die by analyzing sliced CAD model of die cavity and core. Also, the generating NC-code of the tool size is used to calculate machining time. The system is developed with commercial CAM using API. This module will be used for optimization of tool selection and planning process.

• 경영과학
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• 제32권1호
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• pp.65-82
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• 2015

Purchase dependence is a frequent phenomenon in retail shops and is characterized by the purchase of certain items together due to their unknown interior associations. Although this concept has been significantly examined in the marketing field (e.g. market basket analysis), it has largely remained unaddressed in operations management. Since purchase dependence is an important factor in designing inventory replenishment policies, this paper demonstrates the means of applying it to the partial backordering inventory model. Through computational analyses, this paper compares the performance of inventory models that either consider or ignore purchase dependence; the results demonstrate that inventory models that ignore purchase dependence incur more average cost per unit time than the model that considers purchase dependence, and the impact of purchase dependence can increase in significance as the item set becomes more closely correlated with regard to order demand.

• 한국경영과학회지
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• 제39권1호
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• pp.83-100
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• 2014

Retail shops often experience purchase dependence in which some items are purchased together by customers due to their unknown interior associations. This paper develops an inventory model considering partial backordering under purchase dependence and compares the performance of the inventory model that ignores purchase dependence. Computational analyses show that purchase dependence should be incorporated as an important factor of inventory replenishment policy because the impact of purchase dependence can be more significant as the lost portion of the unmet demand orders increases and the item set is more correlated in terms of order demand.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 춘계 종합학술대회 논문집
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• pp.167-171
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• 2006

시론적인 엠엠오알피지에 대한 분석틀을 제시하고, 이 분석틀을 이용하여 대표적인 3개의 게임에 대하여 분석하여 보았다. 분석틀은 커뮤니티성, 피케이용이성, 아이템 이용 용이성, 캐릭터 다양성, 밸런스, 편의성, 심미성의 7개 항목을 가지는 것으로 그 안에서 세부적으로 다시 구체적인 조사항목이 정해진다. 이러한 분석틀을 이용한 직접 분석 결과는 경험적이며 일반적으로 알려진 사항과 일치하는 것으로 나타났다. 즉, 국내게임에 비해 외국게임이 다양한 게임성과 높은 심미성을 제공하는 반면에 편의성과 밸런스 등의 측면에서 취약한 것으로 나타났다.

• 국제물리치료학회지
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• 제4권2호
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• pp.557-561
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• 2013

The purpose of this study to identified the effect of muscle strengthening of ankle joints on postural sway. The subjects of this study were 29 healthy adults aged between 20 and 30 years(male 18, female 11). All subjects received ankle muscle strengthening exercise for 3 times, 3 sessions, 30 minutes per week over 4weeks period. The measured item of muscle strength, postural sway. Data collected from all subjects the result were as follows. The ankle strength showed significant increase(p<.05). One leg stand test with eye close increase in static balance(p<.05), left-right sway distance and anterior-posterior sway distance with eye open and close in static balance(p<.05). The result findings show that strength of the ankle joint muscles is a factor which affects postural sway and the ankle joints are important in static balance.