• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.163-164
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• 2019

In this study, we compared the differences between groups in a model that investigates the effect of smartphone users on the intent to use continuously. There are various methodologies for group difference analysis, but in this study, we try to verify the size comparison of regression analysis $R^2$. In order to analyze the difference between groups, we try to prove through hypothesis test whether there is a meaningful difference in the intention of continuous use of Korean and Chinese smartphone users collected through previous research. The results of the analysis are useful as a method to determine whether smartphone users in China and Korea are aware of differences or not. According to this procedure, first, the formula for calculating Z-transformation of Fisher and Z-score test statistic calculation formula were used. However, this methodology is also used in the verification of control effect using correlation coefficient. Also, the theoretical implications are presented based on the analysis results.

• Proceedings of the Korean Society for Information Management Conference
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• 2001.08a
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• pp.85-88
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• 2001

대학도서관의 정보기술 환경과 이용자의 정보기술 이용능력이 도서관 이용행태에 어떠한 영향을 미치는가를 규명하고자 한다. 본 연구는 독립변인으로 선정된 도서관 집단간의 비교와 이용자 집단간의 비교를 통한 비교실험을 실시하였다. 연구결과, 대학도서관의 정보기술 환경에 따른 도서관 정보기술 이용행태는 대체적으로 차이가 없으며 개인의 정보기술 이용능력에 따른 도서관 정보기술 이용행태는 차이가 있는 것으로 나타났다.

• Animal Systematics, Evolution and Diversity
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• v.2 no.2
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• pp.1-12
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• 1986

Genetic and morphological variation among seven populations of two species of the genus Liobagrus that had been collected from six separate river systems in Korea were analyzed by means of starch electrophoreiss and discriminant function analysis . The degree of genic variation among three population of L.andersoni was P=21.3%, H=0.068 , and that of four population of L.mediadiposalis was P=16.3%, H=0.560. Rogers' gentic similarity coefficient (S) of L.andersoni and L.mediadiposalis were S=0.592 , S=0.675 respectively. In morphometric characters of L. andersoni, the population from Kum River was distinctly different from other conspecific populations.

• The Journal of the Korea Contents Association
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• v.8 no.12
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• pp.109-117
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• 2008

This research analyzed which average comparisons and differences between groups' view motive and selection for information sources, product properties with theater animation spectator. Based on view frequency, each of groups' organization were classified to heavy, occasional, and thinly viewers. As average comparison analysis result, firstly, view motive appeared in order to "want to see animation", "to spend time and leisure activity", "to enjoy fun activity", and "because of others canvassing or recommendation", etc. Secondly, view selection for information source appeared in order to "rumor circumstance or reputation", "theater or TV previews", "internet evaluation and grade", etc. At last, view selection for practical property appeared in order to "story", "character", "special effects", "background music", "background art", "director/directing", "manufacturer/nation", and "dubbing of artist". As difference between group result, view motive and selection for product properties appeared significant differences between each of group. To the contrary, view selection for information sources did not appeared significant differences between each of group.

• 한국정보교육학회:학술대회논문집
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• 2005.08a
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• pp.357-366
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• 2005

본 연구는 웹 기반 협동학습 환경에서 Push기능이 학업성취도, 학습동기에 미치는 영향을 알아보고자 하였다. 이러한 목적을 달성하기 위한 연구 문제는 다음과 같았다. 1. 웹 기반 협동학습에서 Push 기능에 따른 집단 간의 학업성취도에 미치는 효과에 차이가 있는가? 2. 웹 기반 협동학습에서 Push 기능에 따른 집단 간의 학습동기에 미치는 효과에 차이가 있는가? 3. 웹 기반 협동학습 환경에서 Push 기능과 학습자의 학습능력 간에 상호작용 효과가 있는가? 이러한 연구 문제를 검증하기 위하여 웹 기반 협동학습을 위한 웹 게시판을 제작하였다. 본 실험을 위한 교과와 단원은 초등학교 사회과 4학년 1학기 2단원 '우리 시 도의 발전하는 경제'였다. 사전 검사를 통해 동질성이 확인된 충북 음성군 소재 공립 초등학교 4학년 2개 학급의 36명의 학습자를 대상으로 실험을 실시하였다. 학습자들은 동일한 협동학습 환경에서 Push 기능을 선택적으로 제공받았다. 실험처치에서 얻은 검사결과를 분석하기 위하여 SPSS 12.0 for Windows를 사용하여 이원변량분석(two-way ANOVA)을 실시하였으며 유의수준은 .05로 하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 웹 기반 협동학습에서 Push 기능에 따른 집단 간 학업성취도 차이가 없었다. 둘째, 웹 기반 협동학습에서 Push 기능에 따른 학습동기가 차이가 있었다. 즉, Push 기능 적용 집단이 학습동기에서 효과적이었다. 셋째, 웹 기반 협동학습에서 학업성취도와 학습동기는 Push 기능과 학습자의 학습능력수준(상 하) 간의 상호작용 효과가 없었다. 결론적으로, 웹 기반 협동학습에서 Push 기능은 학습동기에서 효과적이라 할 수 있다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.5 no.1
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• pp.70-82
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• 1994

Present study was to evaluate the validity and the clinical utility of the Korean version of Luria-Nebraska Neuropsychological Battery for Children(LNNB-C) in various groups including normal, brain damaged attention deficit hyperactivity disordered(ADHD), and psychiatrically disordered. The Korean version of LNNB-C and BGT were administered to clinical groups consisted of 51 patients(19 brain damaged, 16 ADHD. and 16 psychiatric controls), and to normal group composed of 147 children between the age of 8 and It Also KEDI-WISC was administered D clinical groups as a part of comprehensive psychological assessment There were significant differences between the brain damaged and the normals on all scales of LNNB-C, and between the normals and the ADHD on 11 clinical scales and 3 summary scales, which indicate the clinical validity for the scales of the Korean version of LNNB-C. The significant differences between the ADHD and the brain damaged on 3 summary scales were found, suggesting that the summary scales might play an important role id discriminating between two groups. Multiple discriminant analysis showed that the Korean version of LNNB-C significantly discriminates 3 groups - normals, ADHD, and brain damaged. Percentages of correct classification were ranged from 62.5% in the ADHD to 98.6Ta in the normals. For further evaluating the discriminant validity of the LNNB-C, the discriminant power of each items were calculated, and 131 of the 147 items discriminated significantly between the brain damaged and the normals. The scales of LNNB-C significantly correlated with the error scores of BGT and the most of scales of KEDI-WISC. These results put together : strongly support the concurrent and the discriminant validity of the Korean version of LNNB-C in diagnosing brain damage. The limitations of present study and several issues for the luther study were discussed.

• Korean Journal of Forensic Psychology
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• v.12 no.2
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• pp.99-120
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• 2021

This study examined the differences in facial emotion processing related to psychopathic traits. On the basis of the Psychopathic Personality Inventory-Revised (Lee & Park, 2008), students were divided into psychopathic trait (n=15) and control (n=15) groups. Participants performed two tasks consisted of negative(angry, fear, sad) and neutral faces. Event-related potentials(EPRs) were recorded when participants categorized gender in the implicit task and emotion in the explicit task. We analyzed the late positive potentials(LPP) amplitude to investigate differences in emotion processing between psychopathic trait group and control group. In the implicit task, there was no significant difference in both groups. However, there was a significant interaction between emotion and group at the frontocentral region in the explicit task. The psychopathic trait group showed greater LPP amplitudes for the neutral faces than for the negative faces, whereas the control group showed similar LPP amplitudes for the neutral and negative faces at the frontocentral site. These results might reflect the abnormalities in emotional processing in individuals with psychopathic traits.

• Journal of Venture Innovation
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• v.3 no.1
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• pp.87-99
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• 2020

This study empirical analysed how student's major satisfaction affected job-seeking stress. It also analysed the mean differences of major satisfaction and job-seeking stress between two groups(IPP experienced, non-experienced groups). 200 data were collected from the field survey questionnaires administered to a quota sample of university students who had IPP experience or non-experience. For hypothesis testing, the IBM SPSS Statistics 24.0 was used. As a result of empirical research analysis, first, it was found that major satisfaction had a negative effect on job-seeking stress. Among major satisfaction sub categories, subject satisfaction had negative effects on cognitive and physical stress, and relationship satisfaction also had negative effects on cognitive and physical stress. On the other hand, general satisfaction had a negative effect only on emotional stress. Second, there was a significant difference between major satisfaction and job-seeking stress. Major satisfaction of IPP experience group was high, and the job-seeking stress was low. Third, in the group of students who practiced IPP, subject satisfaction had a negative effect on emotional and physical stress, whereas subject satisfaction in the group of students who did not practice IPP had no significant effect on job-seekingt stress. In the case of relationship satisfaction, only non-practice groups had a negative effect on cognitive stress and physical stress. In the case of general satisfaction, only the IPP group showed negative effects on emotional stress. The results of this study supported the preceding studies that major satisfaction had an effect on job-seeking stress, and the study was meaningful in that it confirmed that there were differences between the IPP experienced, non-experienced groups. Based on this results, academic and practical implications were suggested.

• Animal Systematics, Evolution and Diversity
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• v.13 no.1
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• pp.29-36
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• 1997

한국산 기름종개속 어류중 Cobitis taenia complex의 집단간 유전적 차이에 따른 종 분화 여부를 밝히고자 6개 집단을 대상으로 mitochondrial DNA(mtDNA)의 RFLP분석을 실 시하였다. C. taenia complex mtDNA를 10개의 6-base cutting 제한효소로 처리한 다음 그 절편 양상을 비교, 분석한 결과 6개 집단 공히 mtDNA 의 전체 genome 크기는 약 17.0$\pm$ 0.5Kbp였으며 공동절편수(F)에서 C. t. taenia 2개집단과 C. t. stria와 C. t. lutheri 4개 집단 간의 F값은 평균 0.263으로 차이가 있었으나, C. t. striata 와 C. t. lutheri 사이는 F=0.569로 가깝게 나타났다. 염기치환율 (p)에 있어 C. t. taenia는 C. t. striata 및 C. t. lutheri와 평균 p=0.082로 뚜렷한 종간차이를 보였으나, C. t. striata와 C. t. lutheri 집단들은 p=0.033으로 매우 가까운 유사성을 나타내었다. MtDNA 분석결과 C. taenia complex 중 C. t. taenia는 완전히 종분화가 이루어진 별종으로, C. t. striata와 C. t. lutherisms 아직 종수준의 분화가 이루어지지 않은 아종으로 분류함이 타당하다고 사료된다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.479-479
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• 2017

본 연구는 벤처기업의 매출액의 영향요인에 대하여 기업 내 자원을 범주화하여 그 영향력을 검증하고, 나아가 기업이 보유한 역량을 2개의 차원으로 구분하여 각 차원에 따른 집단 간 벤처기업성과 영향요인의 차이를 확인하고자 하였다. 즉, 기업이 보유하는 역량인 기술, 가격, 품질, 디자인, 조직관리, 마케팅 경쟁력에 대하여 요인분석을 통해 기술역량과 경영역량 차원을 도출하였고, 군집화 과정을 거쳐 각 역량 수준에 따른 네 개의 벤처기업 집단을 분류하였다. 네 개의 집단은 기술-경영 우위, 기술주도, 경영주도, 기술-경영 열위로 나뉘었다. 이후 성과 영향요인들을 자원기반이론의 관점에서 기업현황, 기업가자원, 인적자원, 재무자원, 기술자원, 외부자원의 여섯 개의 상위 범주로 구분하였고, 각 범주에 포함되는 세부 요인들이 매출액에 미치는 영향을 '벤처기업정밀실태조사'의 2개년 데이터를 활용하여 분석하였다. 분석 결과 첫 번째, 전체 벤처기업을 대상으로 분석한 결과 모형에 투입된 33개의 변수들 중 22개의 변수가 벤처기업 매출액에 유의한 영향을 미치는 것이 확인되었다. 두 번째, 기업 역량 차원 분류에 따른 기업 집단 간 영향요인 차이를 분석한 결과, 매출액 영향요인은 입력된 33개의 독립변수 중 최대 13개에서 최소 8개로, 기업 역량 차원에 따른 매출액 영향요인의 차이가 확인되었다.