• Title/Summary/Keyword: ${\chi}^2$-test

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A Study of the Factors Influencing Alcohol Use Disorder in Elders (재가노인의 알코올 사용장애에 영향을 미치는 요인)

  • Jang, In-Sun
    • Journal of Korean Public Health Nursing
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    • v.22 no.2
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    • pp.165-176
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    • 2008
  • Purpose: This study was conducted in order to analyze the factors that influence alcohol use disorder in elders in KyongBuk province. The results of the study will provide basic information for the development of nursing interventions to promote proper alcohol use in elders. Methods: The subjects were 626 elderly individuals. Alcohol use disorder was defined as a score of more than 15 point on the AUDIT-K(Korean version of Alcohol Use Identification Test). Descriptive statistics, chi-square test, ANOVA and logistic regression were utilized to analyze the data. Results: Overall incidence of alcohol use disorder level; normal 73.2%, problem drinking 7.5% and alcohol use disorder 19.3%. Significant factors affecting alcohol use disorder were sex (OR=6.897), religious belief (OR=1.836), smoking (OR=2.948), liver disease (OR=4.753) and depression (OR=1.779). Conclusion: Community health care nurses perform a crucial function in the screening of elderly alcoholics. Early detection and treatment of depression in elders may help to prevent alcoholism.

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TESTS FOR VARYING-COEFFICIENT PARTS ON VARYING-COEFFICIENT SINGLE-INDEX MODEL

  • Huang, Zhensheng;Zhang, Riquan
    • Journal of the Korean Mathematical Society
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    • v.47 no.2
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    • pp.385-407
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    • 2010
  • To study the relationship between the levels of chemical pollutants and the number of daily total hospital admissions for respiratory diseases and to find the effect of temperature/relative humidity on the admission number, Wong et al. [17] introduced the varying-coefficient single-index model (VCSIM). As pointed out, it is a popular multivariate nonparametric fitting technique. However, the tests of the model have not been very well developed. In this paper, based on the estimators obtained by the local linear technique, the average method and the one-step back-fitting technique in the VCSIM, the generalized likelihood ratio (GLR) tests for varying-coefficient parts on the VCSIM are established. Under the null hypotheses the new proposed GLR tests follow the $\chi^2$-distribution asymptotically with scale constant and degree of freedom independent of the nuisance parameters, known as Wilks phenomenon. Simulations are conducted to evaluate the test procedure empirically. A real example is used to illustrate the performance of the testing approach.

Consumer Preferences for Wood-Framed Housing

  • Kwon, Oh-Jung
    • Architectural research
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    • v.2 no.1
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    • pp.17-25
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    • 2000
  • The purpose of this study was; 1) to describe consumer preferences for wood~framed housing; 2) to determine factors which affect the preferences for housing environments in wood-framed housing by demographic, current housing, and wood-framed housing-related characteristics; and 3) to identify differences in preferred wood-framed housing related characteristics by demographic and current housing characteristics. From the visitors to a model wood-framed house in Seoul, Korea, 296 persons willing to live in a wood-framed house were selected as the sample for the study. Data were collected using a self-administered survey and analyzed by frequency distribution, factor analysis, chi-square test, t-test, and one-way analysis of variance procedures. The results of the study Indicated that among seven factors based on 32 housing characteristics, Factor 2 - "floor plan and Interior environment" was the major variable which showed significant difference by selected demographic characteristics. Regarding the differences in wood-framed housing related characteristics by demographic characteristics, age, gender, education, and family life cycle showed group differences. Also, housing type was the major current housing characteristic to provide significant group difference in preferred wood-framed housing characteristics.

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The Comparison of the Environment Consciousness and the Disposal Behavior Between the Urban Children and the Rural Children (아동의 환경의식과 처분행동에 관한연구 -도시와 농촌간의 비교연구-)

  • 강이주
    • Journal of Families and Better Life
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    • v.13 no.2
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    • pp.35-44
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    • 1995
  • 본연구의 목적은 아동의 환경의식과 처분행동을 조사하여 환경문제에 대한 아동의 역할을 조명하고 조기환경교육의 기초자료를 제공하는데 있다 조사도구는 질문지를 이용하 였고 분석방법은 SAS통계프로그램을 이용하였다 환경의시과 처분행동의 차이는 ANOVA와 Tukey test를 지역간(도시, 농촌)의 차이는 t-test 와 $\chi$2 검정을 사용하였다 분석에 이용된 자료는 도시 311부 농촌 299부로 총 610부였다 본연구의 결과를 요약하면 다음과 같다 1) 도시와 농촌간의 환경의식은 통계적으로 유의한 차이가 없이 모두 높게 나타났다 2) 인구통 계변수에 따른 환경의식은 생활수준과어머니의 교육수준이 높을수록 높았으며 주거형태별로 는 아파트 거주자가 높게 나타났다 3) 도시와 농촌간의 처분행동은 유의적인 차이를 보였는 데 도시 지역이 높게 나타났다 4) 인구통계변수에 따른 처분행동은 환경의식과 마찬가지로 소득과 어머니의 교육수준이 높을수록 높았으며 아파트 거주자와 종교가 있느 아동이 높게 나타났다 이러한 결과는 환경을 고려하는 행동양식의선행변수가 교육임을 재확인해주었다

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The Apparel Purchasing Behavior of Adolescent groups Segmented by their Brand Orientation (청소년의 상표지향성에 따른 의복구매행동)

  • 주성래;정명선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.23 no.2
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    • pp.230-241
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    • 1999
  • The purpose of this study was to investigate the purchasing behavior of adolescent consumer groups divided by their brand orientation. Questionnaires were administered to 507 middle and high school students who resided in Kwang-ju between September 22-27 1997. Data were analyzed by factor analysis cluster analysis ANOVA Duncan-test frequency and {{{{ chi ^2 }}-test. The results were as follows : 1. Adolescent consumers were classified by three groups ; brand attached groups : brand attached group (Group I) brand interest group (Group II) and brand indifference group (Group III) according to their brand orientation. 2. There were significant differences among groups in using information sources : Group II used more sources of information than the other two groups. 3. As evaluating attributes of product Group I considered brand prestige most important Group II considered design fashionablity imfortant orderly and Group III considered pricemost important. 4. Group I patronised expensive brand chain stores Group II patronseied department stores and Group III prefered independently owned cheaper priced retailers. 5. The apparel purchasing price range was higher for Group I and became lower for Group II Group III.

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Factors Related to Quit-Smoking Plan in Smoking Seniors (흡연 노인의 금연계획 영향 요인)

  • Park, Min Hee;Choi, Hye Young
    • Journal of Korean Public Health Nursing
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    • v.35 no.1
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    • pp.60-71
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    • 2021
  • Purpose: This study examined the socio-demographic and health factors affecting the quit-smoking plan in smoking seniors. Methods: Data were obtained from the Seventh Korean National Health and Nutrition Examination Survey (VII-1, VII-2, VII-3). The sample consisted of 369 smoking seniors. The complex sample was analyzed thought an independent t-test, Chi-square test, and multiple logistic regression. Results: The influential factors on the quit-smoking plan were daily smoking (OR=0.30, CI=0.11-0.78), age of start smoking (OR=1.06, CI=1.01-1.11), daily smoking amount (OR=0.95, CI=0.90-1.00), quit-smoking trial (OR=2.63, CI=1.32-5.23), and cognitive stress (OR=2.13, CI=1.01-4.54). Conclusion: This study revealed the variables that should be considered when setting up a smoking cessation plan for smoking seniors. Based on this, an elderly cessation intervention program can be developed.

The Effect of Brain Death Organ Donation Education on Nurses' Knowledge and Attitude (뇌사 장기기증 교육이 간호사의 뇌사 장기기증에 대한 지식과 태도에 미치는 효과)

  • You, Hye Sook
    • Journal of Korean Clinical Nursing Research
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    • v.15 no.2
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    • pp.57-65
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    • 2009
  • Purpose: This study was conducted to examine the effects of Brain Death Organ Donation Education on nurses' knowledge and attitudes. Methods: It is a quasi-experimental study using the non-equivalent control group. A total of 100 nurses participated in the study; 50 in the experimental group, and the rest in control group. Collected data were analyzed using ${\chi}^2-test$, t-test and ANCOVA by SPSS 12.0 program Results: There was a statistically significant difference in knowledge (F=13.29, p<.001), and attitude (F=4.35, p=.040) after the experimental group received Brain Death Organ Donation Education. Conclusion: The Brain Death Organ Donation Education was revealed as an effective tool in improving nurses' knowledge and attitudes toward organ donation.

The Effects of Simulation-Based Training, Underwent Before or After the Clinical Practice for the Nursing Students (간호대학생의 임상실습 전과 후에 실시하는 시뮬레이션 실습교육의 효과 비교)

  • Lee, Jung Ok
    • The Journal of Korean Academic Society of Nursing Education
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    • v.20 no.2
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    • pp.203-211
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    • 2014
  • Purpose: This study was conducted to compare the effects of simulation-based training on knowledge, self-efficacy and clinical performance, underwent before or after the clinical practice for the nursing students. Method: A comparison group design was established with pre-clinical practice group (n=34) and post-clinical practice group (n=34). Both groups participated in simulation-based training before or after the clinical practice at the recovery room. Chi-square test, t-test and paired t-test were performed to analyze the data. Results: Both groups showed significantly higher post-test scores in knowledge and self-efficacy than pre-test scores (p<.001). The group with simulation training performed before their clinical practice (pre-clinical practice group) showed significantly higher self-efficacy (p=.044) than the group with simulation training done after their clinical practice (post-clinical practice group). However, there was no significant difference in the knowledge (p=.922) and clinical performance (p=.887). Conclusion: These findings of the study suggest that simulation based training in pre-clinical practice is effective to enhance the self-efficacy and to improve knowledge and clinical performance of the nursing students.

Asymptotic Test for Dimensionality in Sliced Inverse Regression (분할 역회귀모형에서 차원결정을 위한 점근검정법)

  • Park, Chang-Sun;Kwak, Jae-Guen
    • The Korean Journal of Applied Statistics
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    • v.18 no.2
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    • pp.381-393
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    • 2005
  • As a promising technique for dimension reduction in regression analysis, Sliced Inverse Regression (SIR) and an associated chi-square test for dimensionality were introduced by Li (1991). However, Li's test needs assumption of Normality for predictors and found to be heavily dependent on the number of slices. We will provide a unified asymptotic test for determining the dimensionality of the SIR model which is based on the probabilistic principal component analysis and free of normality assumption on predictors. Illustrative results with simulated and real examples will also be provided.

The Effects of a Self-care Management Program for Patients with Diabetic Foot Ulcers (당뇨병성 족부 궤양을 가진 환자의 자가 관리 프로그램 적용 효과)

  • Kim, Jung Yoon;Cheon, Eui-Young
    • Journal of Korean Biological Nursing Science
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    • v.18 no.2
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    • pp.78-86
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    • 2016
  • Purpose: Diabetic foot ulcers are significant problems in diabetes mellitus and often result in lower extremity amputation. This study was conducted to evaluate the effects of a self-care management program on Korean patient's self-efficacy, self-care behavior, size of the wound, and wound related pain. Methods: This study was a quasi-experimental study of pre-test and post-test design in a non-equivalent control group. The intervention strategies of the self-care management program consisted of individual intervention (education, practice and demonstration), computer animation, and face-to-face counseling. There were thirty seven patients, and 20 were assigned to the experimental group while the other 17 were assigned to the control group. The experimental group was given a self-care management program. The control group received information on diabetic mellitus care by means of a leaflet. The data was analyzed using descriptive statistics, a chi-square test, an independent t-test, and a Mann-Whitney test. Results: There were significant differences in self-care behavior and wound related pain. Conclusion: A Self-care program is an effective way to increase patient's self-care ability. This program is highly applicable to diabetic foot ulcer patients in various settings.