• Title/Summary/Keyword: 독립표본 t 검정

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An Empirical Study on Online Game Players' Characteristics in Japan : Hardcore versus Casual Gamers (일본 온라인 게임시장에의 성공적 진출을 위한 기반 연구 - 게이머 유형별 특성 차이를 중심으로 -)

  • Um, Myoung-Yong;Kim, Tae-Ung;Kim, Young-Ki
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.26
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    • pp.285-313
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    • 2005
  • Online game business has emerged as the most lucrative entertainment industry, with over 10 million players in South Korea and over 30 million in Japan in 2005. The popularity of online games can be attributed to the availability of broadband network, pushing online games into the mainstream entertainment culture. The age distribution of online game players is expanding and a variety of new games are under development to target certain age groups. While the interactive entertainment market continues to expand, with many new online game publishers entering Japan, relatively little is known about which factors influence online game players' behavioral intentions to play continuously in this area. It appears that in this extremely attractive and growing services segment, academics, as well as practitioners, would benefit from investigating the difference, among the types of players, in demographic and social trends, perceptions related to game-design factors, and attitude toward the games. Based on data collected from online questionnaire survey, the differences between hardcore and casual players have been analyzed, and interesting conclusions have been provided concerning the online-game design and development strategies for Japan online-game players.

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The Difference of Weight Distribution Index in Elderly People According to Gender (노인의 성별에 따른 체중분포 차이)

  • Yoon, Se-Won;Kwon, Hye-Min;Kang, Yang-Hoon
    • Journal of the Korean Society of Physical Medicine
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    • v.7 no.1
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    • pp.103-110
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    • 2012
  • 연구목적 : 본 연구는 노인의 성별이 낙상에 영향을 줄 수 있는 체중분포지수에 미치는 차이를 알아보고자 한다. 연구방법:광주광역시 소재 빛고을 노인건강타운 물리치료실을 이용하는 65세 이상 66명(남성 33명, 여성 33명) 노인을 대상으로 남성노인 평균연령은 70.97세, 여성노인 평균연령은 71.39세로 모든 대상자는 TETRAX의 체중분포지수(weight distribution index; WDI)를 이용하여 성별에 따라 그 차이를 비교 분석하였다. 측정 방법 은 안정된 발판에서 눈을 뜨고 정면을 향한 자세, 안정된 발판에서 눈을 감고 정면을 향한 자세, 불안정한 발판에서 눈을 뜨고 정면을 향한 자세, 불안정한 발판에서 눈을 감고 정면을 향한 자세, 안정된 발판에서 눈을 감고 고개를 오른쪽으로 돌린 자세, 안정된 발판에서 눈을 감고 고개를 왼쪽으로 돌린 자세, 안정된 발판에서 눈을 감고 고개를 뒤로 젖힌 자세, 안정된 발판에서 눈을 감고 고개를 숙인 자세로 측정하였고, 분석방법은 SPSS version 12.0을 이용하여 통계처리 하였고, 남녀 간의 안정성지수와 체중분포지수의 평균차이 검정은 독립표본 t-검정을 실시하였다. 통계학적 유의성을 검증하기 위해 ${\alpha}$는 유의수준 0.05로 하였다. 연구결과 : 성별에 따른 WDI비교에서 불안정한 발판과 안정된 발판에서 눈을 뜬 상태와 감은 상태에 정면을 향한 자세, 안정된 발판에서 눈을 감고 고개를 왼쪽과 오른쪽으로 돌린 자세에서 유의한 차이가 있었으나 안정된 발판에서 고개를 뒤로 젖힌 자세와 고개를 숙인자세에서는 유의한 차이는 없었다. 결론 : 본 연구의 결과를 바탕으로 성별에 따른 노인의 WDI에 영향을 미칠 수 있는 요인을 파악하여 낙상예방프로그램 기초자료로 활용 될 것으로 생각된다.

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.