• Title/Summary/Keyword: 독립표본 T-검정

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The Effects of the Process-based Mathematics Children's Verse Writing Activities on Mathematics Achievements and Attitudes (과정중심 수학 동시 쓰기가 학생들의 수학 학업성취도와 수학적 태도에 미치는 영향)

  • Park, Hyun Chul;Park, Mangoo
    • Journal of the Korean School Mathematics Society
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    • v.18 no.2
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    • pp.187-201
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    • 2015
  • The purpose of this study was to examine the effects of using process-based writing poems in the elementary mathematics classrooms. For this study, we chose 128 elementary school students to examine their mathematical achievements and attitude towards mathematics when using process-centered writing poems in the elementary mathematics classrooms. Process-based mathematics and writing programs developed mainly on the geometry units were composed of four levels, idea generation, idea selection, use and idea organization grouped into similar sections in order to separate into two sections. The results of the practice of this study's problem can be summarized as follows. First, the process-based mathematics and writing activity of geometry had a positive impact on academic achievement in mathematics. Although there was not a significant difference in the fourth and fifth grades, significant differences in the fifth and sixth grade were found. Second, in regards to attitudes in mathematics, process-based mathematics and writing activities had a positive impact. In particular, the improvement of mathematical attitudes was evident in all grades. It confirmed the effective facilitation of interest and enjoyment towards learning mathematics by 4th, 5th and 6th graders who had undertaken these mathematics classes.

Effects of MMORPG-Based Hanja Learning for Elementary School Students on Self-Directed Learning Ability (MMORPG 기반 초등한자 학습이 자기주도 학습능력에 미치는 효과)

  • Park, Hee-Jin
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2012.01a
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    • pp.135-138
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    • 2012
  • 본 연구는 다중참여역할수행게임(Massive Multiplayer Online Role Playing Game, 이하 MMORPG)이 자기주도 학습능력에 미치는 효과를 살펴보는데 목적이 있으며, 초등학교에 재학중인 4, 5, 6학년 3개 학급을 실험 대상으로 4주간 실험하였다. 실험집단은 방과 후 수업시간을 이용하여 일주일에 2시간 이상 MMORPG를 활용한 한자수업을 학습하도록 지도하였고, 통제집단은 교사의 수업 진행으로 학습하였다. 실험 전 두 집단 간의 자기주도 학습능력에 대한 동질성을 검증하기 위하여 자기주도 학습준비도 검사(Self-Directed Learning Readiness Scale, 이하 SDLRS)를 이용하여 자기주도 학습능력 사전검사를 실시하였고, 4주간 실험이 끝난 후 자기주도 학습능력 검사의 차이를 알아보았다. 더 나아가 하위요소인 효율적인 학습자라는 개념, 학습에 대한 솔선수범 및 독립성, 창의성, 자신의 학습에 대한 책임감, 기본학습 기능과 문제해결 기술, 미래 지향적인 자기이해 학습기회에 대한 개방성, 학습에 대한 애정과 열성을 다변량분산분석(MANOVA)를 실시하여 통계분석 하였다. 이러한 연구결과들을 바탕으로 다음과 같은 결론을 내릴 수 있다. 첫째, MMORPG를 활용한 한자학습과 일반교실 한자학습은 독립표본 t검정 결과 자기주도 학습능력에서 유의미한 차이가 나타났다. 즉, MMORPG를 활용한 한자학습이 일반교실수업에 의한 학습보다 높은 자기주도 학습능력 정도를 보여 주었다. 둘째, MMORPG를 활용한 한자학습이 하위요소 간에 어떠한 여향을 미치는가를 알아보기 위해 실시한 MANOVA 결과 효율적인 학습자라는 개념, 학습에 대한 솔선수범 및 독립성, 창의성, 자신의 학습에 대한 책임감, 기본학습 기능과 문제해결 기술, 미래 지향적인 자기이해에서는 유의미한 것으로 나왔지만 학습기회에 대한 개방성, 학습에 대한 애정과 열성에서는 유의미한 결과를 얻지 못하였다.

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A Study of Differences in Mindfulness and Psychological Well-being of Art Psychotherapists according to their Demographic Characteristics (예술심리치료사의 인구사회학적 특성에 따른 마음챙김과 심리적 웰빙의 차이검증)

  • Song, Kyeng-my;Cho, Sung-je
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.6
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    • pp.405-412
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    • 2021
  • This study examined the difference between mindfulness and psychological well-being of art psychotherapists according to their demographic characteristics. The subjects were 127 art psychotherapists working at counseling centers in Ulsan metropolitan city. Statistical software R was used for frequency analysis, factor analysis, reliability analysis, independent-sample T-test, and one-way ANOVA. A Scheffe test was used for post hoc analysis. The results showed that the difference in mindfulness of art psychotherapists was significant in age and at peer supervision and case study meanings in supervision type only. Second, the difference in the psychological well-being of art psychotherapists was significant at peer supervision and case study meetings in supervision type only. This means that the more art psychotherapists experience peer supervision and case conferences, the more they perceive mindfulness and psychological well-being. These results suggest that age and supervision type are important for the art psychotherapists' mindfulness and psychological well-being. Therefore, to improve artistic psychotherapists' mindfulness and psychological well-being, it is necessary to systematically develop and operate support programs for each developmental stage to improve artistic psychotherapists' demographic characteristics and professional development.

Accident Models of Rotary by Vehicle Type (차량유형별 로터리 사고모형)

  • Han, Su-San;Park, Byeong-Ho
    • Journal of Korean Society of Transportation
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    • v.29 no.6
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    • pp.67-74
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    • 2011
  • This study deals with the traffic accidents data from the Korean rotaries (circular intersections) to verify their characteristics affected by different vehicle types. This paper categorized the data into three groups based on vehicle types, and developed a set of accident models. The paper proposed two ZIP models and one negative binomial model through a statistical analysis for three vehicle types: automobile, truck and van, and others. The differences among those models were then statistically compared.

A Study on Relationships Between Characteristics of Online Game Item and Game Users (온라인 게임 아이템 특성과 이용자 특성의 관계 분석)

  • Wi, Jong Hyun;Kim, Eunbi
    • Journal of Korea Game Society
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    • v.19 no.3
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    • pp.113-122
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    • 2019
  • The study classifies online game users with two groups, which are users who purchase functional items and emotional items. This research used statistic tool, STATA MP, trying unpaired t-test to find relationships between two groups on payment intention and characteristics. The result shows that the users with functional items prefer community-oriented mind and interaction with other users while users with emotional items intend to consider item's design and superiority with higher purchasing satisfaction. The result of this study seems to give some implications to game companies when improving its purchasing system with charged items.

An Analysis of the Difference in Awareness on Visual Landscape Control Elements among the Expert Groups (경관제어요소에 관한 전문가집단 간 인식차이 분석)

  • Cho, You-Kyung;Kong, Eun-Mi;Kim, Young-Ook
    • Journal of the Korean Institute of Landscape Architecture
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    • v.39 no.2
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    • pp.29-39
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    • 2011
  • Recent interests in the quality of urban space have raised awareness on the role and importance of landscape planning. Although laws and guidelines are officially ready to be imposed as for landscape planning, we do not have concrete materials that can be utilized in the course of practices. The aim of this paper in this regard is to disclose the possible difference in awareness on 'visual landscape control elements' among experts engaged with urban space planning. The expert groups are distinguished to three which are for a planning, design and engineering and the survey is made by questionnaires. The results are analyzed through basic technology statistics in SPSS and independent-sample t-test provided. The survey is done by tens of 'control elements' and the result is that specially, group 1 and group 2 in mixed landscape has the most discrepancy in awareness on those elements but relatively, they has less discrepancy in awareness on compare with other groups through all landscape area. In case of artificial landscape and mixed landscape in 'landscape controled area', the result for comparing between G1 and G2 is that there are the most discrepancy in awareness which are 7 control elements. In case of mixed landscape in 'landscape promoted area', there are 4 control elements for discrepancy in awareness between G2 and G3 which is quite different. The control elements which show the most discrepancy in awareness is height, floor space and building to land ratio in order. The shape elements has only discrepancy in awareness for comparing between G1 and G2 of artificial landscape in 'landscape controled area'. In terms of the average evaluation score of the appropriateness of these control elements, G1 seems to appreciate the role of these elements in systematic landscape planning more than the other group does. In other words, relatively low scores are given by G2 as for the overall functionality of visual landscape control elements. The texture, floor space and building of land ratio has low evaluation score for all area and types. It means that it should reverify for appropriateness of performance for landscape planning as visual landscape control elements.

Educational impact of reflection activities using Facebook in university lectures (대학 강의에서 페이스북 기반 성찰활동의 효과)

  • Seo, Juyeon;Lee, Jeongmin
    • The Journal of Korean Association of Computer Education
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    • v.17 no.5
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    • pp.107-114
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    • 2014
  • This study aims to investigate the effects of reflection activities on using Facebook in university lectures. To accomplish the purpose of this study, an experiment was conducted with 181 students who took a large-scale university lecture. Subjects were assigned into two groups: 90 facebook group(experimental group) and 91 cybercampus group(control group). They participated reflection activities on facebook or cybercampus during 4 weeks. Independent samples t-test with in-depth interview were employed to analyze data. The results of this study are summarized as follows: there was a statistically significant difference in learning satisfaction between facebook group and control group. Learning satisfaction of facebook group is significantly higher than that of control group because reflection activities on facebook provided to gather information on reflection and to interact with peers easily. In conclusion, these findings imply that reflection activities on facebook is effective for improving learning satisfaction of large-scale university lectures.

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Analysis of the Marginal and Internal Fit of Dental Zirconia Core Using Optical Coherence Tomography(OCT) (광간섭단층영상기를 이용한 치과용 지르코니아 코어의 적합도 분석)

  • Kim, Jae-Hong;Kim, Ki-Baek
    • The Journal of the Korea Contents Association
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    • v.12 no.8
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    • pp.240-247
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    • 2012
  • Marginal and internal fit is an important part of the longevity of dental restorations. The purpose of this study was to analysis the marginal and internal fit of zirconia core by dental CAD/CAM system using innovative and non-destructive methods such as optical coherence tomography(OCT) and compare with conventional method such as silicone replica technique(SRT). Ten dental stone models of abutment of maxillary right central incisal were manufactured and scanned. Ten zirconia cores were fabricated with commercial CAD/CAM system. To measure the marginal and internal fit of each sample, five point of fitness were measured using 2 different methods(OCT and SRT). Statistical analysis was performed using independent sample t-test(${\alpha}$=0.05). OCT and SRT groups were not significantly different(P>0.05). By this results, analysis the fitness of dental restorations using OCT were acceptable measuring method.

The Effect of Storycrafting Program on Mathematical Creativity and Communication (스토리크래프팅 프로그램이 수학적 창의성 및 의사소통능력에 미치는 영향)

  • Lee, Hyewon;Chang, Hyewon
    • Journal of Elementary Mathematics Education in Korea
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    • v.20 no.4
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    • pp.677-694
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    • 2016
  • Storycrafting is a creative educational technique in Finland. Since 2011, storytelling approach of mathematics textbooks in South Korea can be regarded as opportunities for interesting learning of mathematics as well as its improper application to mathematics lessons. We need to revise and improve the storytelling method. The purpose of this study is to make a storycrafting program that encourages students to make mathematical stories for themselves and to analyze the effect of the storycrafting program on mathematical creativity and communication. To do so, we developed a storycrafting program of mathematics for sixth graders, which is composed of 33 lessons. And we applied them to one sixth class as experimental group. Through pre-test and post-test, their mathematical creativity and communication were tested. Based on the result of t-test, we can verify the statistical meaningful effect of the storycrafting program. This study contains some conclusions and suggestions.

A Comparative Analysis on Curriculum of iSchools and L-School in North America (북미지역 iSchool 대학과 L-School의 교육과정 비교분석)

  • Kim, Heesop;Nam, Kwon Hee;Kang, Bora
    • Journal of the Korean Society for Library and Information Science
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    • v.47 no.4
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    • pp.295-314
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    • 2013
  • The purpose of this study is to analyze the curriculum of iSchools in North America. To achieve the aim of the study 17 iSchools and the same number of L-Schools were chosen from the same regional area. Data were collected mainly through each of their official websites and email inquiry. The graduate courses were classified into 8 domains judging by its title, and conducted t-test for a comparative analysis with L-School curriculum using SPSS 19.0. It is found that 'Information Studies', 'Practicum and Study', and 'Library and Information Center Management' domains were dominant in iSchool curriculum. In the comparative analysis, 'Study in Library and Information Science' domain showed lower percentage, whereas 'Information Studies', 'Library and Information Center Management', 'Practicum and Study' domains showed higher percentage than the L-School curriculum.