• 제목/요약/키워드: fisher's Z

검색결과 54건 처리시간 0.029초

문화관광지 선택속성에 대한 세분시장별 여행만족도에 관한 연구: Fisher's Z값을 활용한 조절효과를 중심으로 (A Study on Travel Satisfaction for Segmented Groups of Cultural Destination Attributes)

  • 장양례;윤유식;박노현
    • 대한지리학회지
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    • 제43권6호
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    • pp.938-950
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    • 2008
  • 본 연구의 목적은 문화목적지 선택속성 추출과 집단별 시장세분화를 통해 문화목적지 선택속성과 여행만족도와의 영향관계 및 차이를 비교하는 것이다. 본 조사를 위한 설문은 기존 문헌연구와 데이터를 기초로 하여 개발되었으며, 설문조사는 부여와 공주지역을 중심으로 실시하였다. 연구결과에서는 문화목적지 선택속성이 6개로 추출되었으며, 군집분석에서는 3개의 그룹으로 세분화되었다. 다중회귀분석에서는 3개의 세분화된 집단과 여행 만족간의 관계를 알아보고자 Fisher's Z 값을 이용하였으며, 결과는 다음과 같다. 첫째, 문화 목적지 선택속성은 여행 만족도에 영향을 주는 요인으로 밝혀졌으며, 선택속성요인은 3개의 시장으로 세분화되었다. 둘째, 문화목적지 선택속성으로 세분화된 3개의 그룹은 여행 만족도에 영향을 주는 것으로 조사되었다. 따라서 세분화된 그룹 간 문화목적지 선택속성의 선택이 다르게 분석되었으며, 이와 관련한 문화관광을 하는 관광객들을 위한 상품과 서비스를 차별화 할 수 있는 마케팅적 정책과 방법을 강구하여야 할 것으로 보여진다.

상관계수에 대한 검정법 비교 (A Comparative Study on Tests of Correlation)

  • 조현주;송명언;정동명;송재기
    • Journal of the Korean Data and Information Science Society
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    • 제7권2호
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    • pp.235-245
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    • 1996
  • 확률변수 (X,Y)가 이변량 정규분포를 따르는 경우, 모상관계수 ${\rho}$에 관한 여러 가설들 중에서 $H_{0}:{\rho}={\rho}_{0}$인 경우에는 알려진 분포를 이용한 통계적 추론을 하기가 어렵다. 이러한 경우 Fisher에 의해 제안된 Z-변환을 이용한 근사적 검정법이 사용되어 오고 있으나 근사적인 방법이기 때문에 주어진 표본의 크기가 충분히 많지 않은 경우에는 적용에 무리가 있을 수 있다. 그래서 본 논문에서는 먼저 표본 상관계수 R의 분포를 모의실험을 통하여 직접 구하여 검정한 정확 검정법과, 붙스트랩(bootstrap) 방법을 이용하여 구한 붙스트랩 검정법을 제시하고, Fisher의 방법의 효율성과 실제성을 검토하고 제시된 방법들과 서로 비교하고자 한다.

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Rapid Cycle Deliberate Practice 전문 소생술 시뮬레이션 교육이 간호사의 수행 능력, 자신감과 만족도에 미치는 효과 (Effect of Rapid Cycle Deliberate Practice Advanced Life Support Simulation Education on Nurse's Performance, Confidence, and Satisfaction)

  • 김미영;김성희
    • 한국산학기술학회논문지
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    • 제20권11호
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    • pp.44-55
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    • 2019
  • 본 연구는 간호사를 대상으로 초기 심정지 5분 간 수행능력, 자신감 향상을 위해 전통적 시뮬레이션 교육 방법과 Rapid Cycle Deliberate Practice(RCDP) 시뮬레이션 교육 방법을 받은 전·후 변화를 확인하고 두 그룹 간의 수행 능력, 자신감, 만족도를 비교 하고자 시도되었으며 연구 대상자는 서울 소재 병원의 간호사로 그룹 1은 62명으로 RCDP 시뮬레이션 방법을 그룹 2는 60명으로 전통적 시뮬레이션 교육 방법으로 총 122명의 간호사에게 전문 소생술 교육을 진행 하였다. 2019년 3월 18일부터 29일 까지 자료 수집을 하였으며 자료 분석은 SPSS Version 23.0 프로그램으로 서술적 통계, Fisher's exact test, t-test, Wilcoxon sign rank test, Mann-Whitney U-test를 활용하여 분석하였다. 연구 결과 RCDP와 전통적 시뮬레이션 교육의 두 그룹 간에는 수행 능력의 일부 항목(z=-2.02, p=0.044 / z=-2.42, p=0.015 / z=-3.03, p=0.002)은 유의한 차이를 보였으나 수행 자신감(z=0.388, p=0.699)과 만족도(t=.72, p=0.476)에서 두 그룹간의 차이는 없었다. 본 연구는 전통적 시뮬레이션 교육 방법과 RCDP 시뮬레이션 교육 방법 모두 간호사의 전문 소생술 수행 능력 및 자신감을 높이는데 효과적인 교육 방법임을 확인하였다. 따라서 간호사 대상 전문 소생술 교육시 교육 대상 및 내용에 따라 적절한 시뮬레이션 방법을 적용하고 다양한 분야에 RCDP 시뮬레이션 교육 방법을 활용하여 효과성을 확인 해 볼 것을 제언한다.

한반도 주변도서의 관속식물 분포에 관한 연구 (Studies on the Distributiion of Vascular Plants in the Islands around the Korean Peninsula)

  • Paik, Kwang Soo;Yang-Jai Yim
    • The Korean Journal of Ecology
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    • 제5권4호
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    • pp.143-153
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    • 1982
  • Distributional pattern of vascular plant species in terms of species-area relationship and distances from their species pool on the 53 islands selected in the South Korea were studied. From the relationship between vascular plant species and area the equation of species-area was established as the follow: S=cA2 c=135.52 z=0.226 S; number of species A; area of island In the equation the Z value 0.226 is lower than those of any other localities reported in the world. Z value increased with the increasing distance from the species pool while C value decreased. The relationships of Z and/or C and distance from species pool, D, were established; Z=0.002D+0.176 C=-39.5logD+178.5 The tendency of common species decrease of them with the increasing islands was fifted to the Fisher's logarithm series. Common species 50% above was 39 species, including the most common species, Pinus thunbergii. Quotient of Similarity value by Sorensen (1948) on common species was relatively low i.e. 0.27∼0.47. It is noticeable for their vegetation conditions that the naturalized plant as a indicator of disturbance, for example Erigeron canadensis, was widely distributed.

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지역사회 거주 노인의 우쿨렐레를 활용한 음악 프로그램 개발 및 효과 (Music Program Development Using the Ukulele in Community-dwelling Old Adults and Its Effect)

  • 강경혜;제남주
    • 지역사회간호학회지
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    • 제32권2호
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    • pp.220-231
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    • 2021
  • Purpose: This study is a pseudo-experimental study of design before and after the non-equivalent control group, which was attempted to verify that the application of the ukulele to the elderly has the effects of reducing depression, improving self-efficacy, strengthening social bonding, and improving cognitive function. Methods: 46 (23 in the experimental group and 23 in the control group) participants were selected. The experimental group was provided with three sessions of a music program using eight Ukuleles for the elderly, while the control group was provided with three sessions for the elderly. IBM SPSS 25.0 was used for data analysis, and the independent t-test, 𝑥2-test, and Fisher's exact probability test were performed to verify the homogeneity of the subject's general characteristics. The effect verification after the experimental treatment was analyzed by Fisher's exact probability test, Friedman test, and Mann-Whitney U test. Results: Depression showed a statistically significant difference between the two groups (F=39.88, p<.001), self-efficacy showed a statistically significant difference between the two groups (z=-4.96, p<.001), social bonding showed a statistically significant difference between the two groups (z=-5.19, p<.001), and cognitive function showed a statistically significant difference between the two groups (z=-3.98, p<.001). Conclusion: It was found that the 'Music Program using the Ukulele' was effective in reducing depression of the elderly, improving self-efficacy, reinforcing social bonding, and improving cognitive function. We hope that the Music Program using the Ukulele can be used in the elderly nursing curriculum in the future, and we suggest it should be applied as a nursing intervention to those who are experiencing cognitive decline.

SOME FIXED POINTS FOR EXPANSIVE MAPPINGS AND FAMILIES OF MAPPINGS

  • Liu, Z.;Feng, C.;Kang, S.M.;Kim, Y.S.
    • East Asian mathematical journal
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    • 제18권1호
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    • pp.127-136
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    • 2002
  • In this paper we obtain some fixed points theorems of expansive mappings and several necessary and sufficient conditions for the existence of common fixed points of families of self-mappings in metric spaces. Our results generalize and improve the main results of Fisher [1]-[5], Furi-Vignoli [6], $Is\'{e}ki$ [7], Jungck [8], [9], Kashara-Rhoades [10], Liu [13], [14] and Sharma and Strivastava [16].

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United Kingdom pediatric dentistry specialist views on the administration of articaine in children

  • Ezzeldin, Maryam;Hanks, Gemma;Collard, Mechelle
    • Journal of Dental Anesthesia and Pain Medicine
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    • 제20권5호
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    • pp.303-312
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    • 2020
  • Background: Lidocaine is the gold standard local anesthetic (LA) for UK pediatric dental treatment. Recent reports suggest frequent Articaine use in Europe and Canada, with evidence indicating more profound anesthesia. The aim of this study was to examine pediatric dentistry specialist experiences and practices relating to Articaine administration in the UK. Methods: A literature review was followed by a survey using an anonymous 15-item electronic questionnaire, which was sent to 200 registered British Society of Pediatric Dentistry (BSPD) specialists. Descriptive analyses, Z score, chi-squared test, Fisher's exact test, and Spearman's correlation test were performed. Results: Sixty-one (30.5%) participants responded, and 12 (19.7%) indicated Articaine as their first line anesthetic. Articaine was used daily or weekly by 38 (62.3%) respondents, depending on the clinical context. Articaine was commonly used to avoid inferior alveolar nerve blocks and gain more profound anesthesia in abscessed or hypomineralized teeth. Participants reported significantly more adverse effects with lidocaine (Fisher's exact test, P < 0.0001) than with Articaine. Articaine was most often administered in children aged > 4 years via infiltration techniques. Only 15 (24.6%) respondents reported awareness of guidelines for Articaine use in pediatric patients. Conclusions: Articaine use in pediatric dentistry is common; however, evidence supporting its practice is limited. Several specialists follow conventions based on anecdotal evidence. Formulating guidance to aid decision-making when treating pediatric patients under LA would be beneficial.

부모-아동간 신념의 일치도와 아동의 학업 성취도 및 자기능력지각과의 관계 (Congruence of Parents and Children's Beliefs: Relationships to Academic Achievement and Perceived Competence)

  • 전경숙
    • 아동학회지
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    • 제13권2호
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    • pp.251-272
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    • 1992
  • The purpose of this study is to investigate the relationships among the beliefs of parents and children, children's cognitive and emotional behavior based on cognitive and interreactionary approach models. The Subjects were 138 children (68 eight-year-olds and 70 eleven-year-olds) and their parents. Instruments used in this study were the modified Family Belief Interview Schedule(Alessandri & Wozniak, 1987), the Standard Achievement Test, and Harter's Perceived Competence Scale. Data analysis was by Pearson's r product moment correlation, two-way ANOVA, Fisher-Z test and Student-Newman-Keuls post-hoc test. The major findings are as follows: (1) The beliefs of parents and children has a significant influence children's perception of competence. (2) The congruence of parents' and children's beliefs was hightest in "assumed similarity". (3) Mother's positive view of their children and congruence of mother's and father's beliefs were correlated with children's academic achievement. Parents' positive beliefs and congruence of beliefs were also correlated with children's self-perception of competence.

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타이치운동이 여성노인의 불안, 무력감 및 자아존중감에 미치는 효과 (Effect of Tai Chi Exercise Program on Anxiety, Powerlessness, and Self-esteem in Elderly Women)

  • 박영주;김미선
    • 근관절건강학회지
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    • 제18권2호
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    • pp.147-157
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    • 2011
  • Purpose: The purpose of this study was to determine the effect of Tai Chi exercise program (Sun style 12 forms) on anxiety, powerlessness, self-esteem in community-dwelling elderly women. Methods: With a quasi-experimental design, a nonequivalent control group pretest-post test was used. Elderly women who agreed to participate in the study were assigned into an experimental group (n=23), or a control group (n=23). The experimental group participated in Tai Chi exercise program for 50 minutes per session, 2 times a week for 11 weeks. Tai Chi exercise program consisted of 10 minutes for warm-up, 35 minutes for main session, and 5 minutes for cooling down exercises. Anxiety, powerlessness, and self-esteem were measured with questionnaires to evaluate the effect of Tai Chi exercise program. The data were analyzed by using Chi-square test, Fisher's exact test, and Mann-Whitney test by a SPSS WIN 12.0 program. Results: The experimental group showed significant improvement for self-esteem (z=-3.130, p=.002), powerlessness(z=-3.267, p=.001), and anxiety (z=-2.932, p=.003) when compared to control group, Conclusions: Tai chi exercise program may be an effective nursing intervention to improve self-esteem and to reduce powerlessness and anxiety in community-dwelling elderly women.

혈액 투석 환자의 변비 완화 및 생리적 지표 향상을 위한 융합형 미숫가루 음용 섭취 프로그램 개발 예비 조사 (The Effects of Misutkaru Water Drink on Relieving Constipation and Physiological Measurements: A Preliminary Study for the Development of Convergent Misutkaru Water Drink Intake Program in Patients with Hemodialysis)

  • 신나연;박효선
    • 융합정보논문지
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    • 제9권5호
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    • pp.40-47
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    • 2019
  • 본 연구의 목적은 혈액 투석 환자의 변비 정도를 파악하고, 미숫가루가 변비 완화 및 생리적 지표에 미치는 효과를 알아보고자 함이다. S시 소재 종합 병원에서 혈액 투석을 받는 환자 42명을 대상으로 실험군에게 미숫가루 30g을 복용하게 하고 변비 사정 척도 점수와 혈청 Potassium, Phosphorus을 측정하였다. 변비 사정 척도 점수는 실험군이 4.5점, 대조군이 6.5점으로 두 집단 모두 점수가 낮아졌다(z=-2.66, p=.002). Potassium은 실험군이 4.9mmol/l, 대조군이 4.7mmol/l 이었고(z=0.91, p=.960). 혈청 Phosphorus점수는 실험군이 5.3mg/dl, 대조군이 4.7mg/dl 이었으나 (z=0.45, p=.540) 통계적으로 유의하지 않았다. 미숫가루 음용은 혈액 투석환자의 변비 완화를 위한 적절한 간호 중재로 적용될 수 있으며 미숫가루 음용 섭취를 통해 혈액 투석 환자의 변비 완화 간호 중재의 적극인 활용이 임상 실무에서 도움이 될 것으로 생각된다.