• 제목/요약/키워드: Regression Testing

검색결과 695건 처리시간 0.03초

소상공인의 개인성향 및 시장 환경특성과 경영성과 간에 경영교육 만족도가 미치는 조절효과 검증 (Testing for Moderating Effects of Management Education between Small Business Owner's Individual Personality, Market Environment Characteristics and Management Performance)

  • 황선재;허철무
    • 벤처창업연구
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    • 제14권6호
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    • pp.45-57
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    • 2019
  • 본 연구는 소상공인의 경영성과에 미치는 요인에 대한 연구는 진행되어 왔으나 소상공인을 대상으로 한 경영교육이 개인성향 및 시장 환경특성과 경영성과 간의 영향관계에 미치는 조절 역할에 대한 분석 연구는 미비한 현실로 본 연구를 통한 검증제시가 필요하다고 판단하였다. 이를 위해 서울,경기도 등의 소상공인을 대상으로 설문조사를 실시하여 최종 368부를 수집하였으며, 위계적 회귀분석방법을 사용하여 분석을 수행하였다. 실증분석 결과, 경영교육만족은 경영성과에 각각 통계적으로 유의한 정(+)의 영향을 미쳤다. 2단계에서 평균중심화한 성취욕구와 경영교육만족도간의 상호작용을 추가로 투입한 결과 성취욕구와 경영교육만족은 경영성과에 유의한 정(+)의 영향을 미쳤으며, 상호작용항 역시 유의한 영향을 미치는 것으로 나타났다. 시장환경특성 중 시장매력도와 경영교육만족도는 모두 경영성과에 유의한 정(+)의 영향을 미쳤다. 2단계에서 평균중심화한 시장매력도와 경영교육만족도간의 상호작용을 추가로 투입한 결과 경영성과에 유의한 정(+)의 영향을 미쳤으며, 상호작용항 역시 유의한 영향을 미치는 것으로 나타났다. 이러한 연구를 통해 소상공인의 경영성과는 경영교육만족도의 조절효과를 통하여 유의한 영향을 미치는 요인으로 확인되었고 치열한 경쟁환경 속에서 그 경쟁력을 확보하는데 그 중요성이 매우 크다고 할 수 있다.

발반사 마사지를 받는 중년여성과 일반중년여성간의 증상 비교에 관한 연구 (A Comparative Study Of The Symptoms Between The Middle Aged Women Who Take Foot Reflexzone Massage And The Middle-Aged Women Who Do Not)

  • 이재온;왕명자;이금재
    • 지역사회간호학회지
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    • 제14권2호
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    • pp.323-333
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    • 2003
  • This is a comparative descriptive study conducted for 178 middle-aged women who were residing in Seoul and aged between 41 to 64 (95 in control group, and 83 in experimental group). The study was aimed to examine their climacteric symptoms, degree of fatigue, depression, anxiety and quality of sleep and to examine the differences on the symptoms between the two groups. Data were collected from April 1 to May 15, 2002 through self-statement using structured questionnaires. The collected data were verified with descriptive statistics, ? -test, t-test, ANOVA using SPSS/PC(+). The results are as follows. 1) The average scores of the climacteric symptoms were 1.56 .36 for the control group, and 1.55 .33 for the group taking relexzone massage, showing no significant difference between the groups (t=.15, p=.88). 2) The average scores of the degree of fatigue were 2.17 .65 for the control group, and 2.40 .66 for the group taking relexzone massage, showing a significant difference between the groups. (t=-2.31, p=.02) 3) The average scores of depression were 1.91 .50 for the control group, and 2.05 .42 for the group taking relexzone massage, showing a significant difference between the groups (t=-1.99, p=.05). 4) The average scores of anxiety were 1.54 .60 for the control group, and 1.57 .53 for the group taking relexzone massage, showing no significant difference between the groups (t=-.33, p=.74). 5) The average scores of quality of sleep were 2.97 .49 for the control group, and 2.98 .42 for the group taking relexzone massage, showing no significant difference between the groups(t=-.08, p=.93). Based on these results, the middle-aged women who take relexzone massage are considered to have less fatigue and depression than those who do not. As physiological regression progresses and the structure and role in the family are restructured, middle-aged women are like to experience various climacteric symptoms. As a nursing intervention, relexzone massage can be applied to middle-aged women to reduce their stress, climacteric symptoms and emotional anxiety, ultimately promoting their health. In order to implement relexzone massage as a nursing intervention, further testing on the psycho-neuroimmunologjcal effects of relexzone massage is necessary.

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Denver II 발달검사를 이용한 한국과 미국의 아동 발달 비교 연구 (Denver II Developmental Screening Test: A Cross Cultural Comparison)

  • 신희선;한경자;오가실;오진주;하미나
    • 지역사회간호학회지
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    • 제13권1호
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    • pp.89-97
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    • 2002
  • Purpose: The purpose of this study is to explore the validity of the application of the Denver II developmental screening test to Korean children. This screening test. which was developed and standardized in United States. was designed to screen for developmental delay in Korea. and to compare the levels of development of Korean children with the development of children from the U.S. Method: Quota sampling. NP To facilitate field sampling. the age range used from 0 to 6 years old. was split into 10 different age groups. Sample size was estimated according to residence. 1.054 children were recruited from Seoul's metropolitan. urban and rural areas. NP To fill the quota established. the Recruitment and testing of children was done at public health centers, pediatric outpatient clinics of general hospitals and a child care center. The 25, 50, 75 and 90 percentiles were identified by using logistic regression analysis and were calculated as norms. The items in which the ages of both 50 and 90 percent passing differed more than 20 percent by the calculation was identified for comparison. NP Result: There were significant differences found in 45 items between Korean children and the children from the City of Denver as it relates to age differences. 90% of the sample passed items among 125 items from 4 sectors, e.g., personal- social. fine motor adaptive, language, and gross motor sectors. Korean children were found to be advanced in 9 items, whereas there were significant differences found in 38 items in our comparison of the two countries for age differences when 50% of sample pass items. Korean children were found to be advanced in 16 items. NP Conclusion: The result showed that there was a discrepancy in the developmental norms. It could be explained by the differences in the developmental environment. including child rearing patterns and ethnicity. Therefore, a restandardization of the Denver Screening Test is necessary as it relates to its application on Korean children. This restandardization is necessary in order to avoid both under and over-referrals of children with developmental abnormality. The modification of items in the language sector is especially suggested.

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한국인의 일부 도시인에서 비만, 이상혈당, 이상지질혈증의 집락과 고혈압의 관련성 (Association of Hypertension with Cluster of Obesity, Abnormal glucose and Dyslipidemia in Korean Urban Population)

  • 이강숙;김정아;박정일
    • Journal of Preventive Medicine and Public Health
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    • 제31권1호
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    • pp.59-71
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    • 1998
  • To examine the association of hypertension with cluster of obesity, abnormal glucose and dyslipidemia in Korean urban population, we conducted this cross-sectional study among 3027 men and 2127 women age 20-85 years who visited a prevention center between May 1991 and June 1995 for a multiphasic health check at St. Mary's Hospital, Seoul. By the self-administered questionnaire, the informations of educational attainments, monthly income, alcohol consumption, cigarette smoking, and physical excercise level were obtained. Height, weight, and blood pressure were measured by a trained nurse. The fasting blood sugar (FBS), total cholesterol, high density lipoprotein (HDL) cholesterol and triglyceride were tested by enzyme method. Low density lipoprotein (LDL) cholesterol was calculated by 'total cholesterol - HDL cholesterol - triglyceride/5'. For testing the differences of cardiovascular risk factors between hypertension and normotension group, 1-test and $\chi^2$-test were performed. For the age adjusted odds ratios of hypertension in persons with obesity, abnormal glucose, and dyslipidemia compared with normal, logistic regression was performed by using SAS pakageprograme. The results obtained were as follows: 1. Age, weight, body mass index(BMI), blood glucose, total cholesterol, LDL cholesterol, and triglyceride of hypertension group in men and women were significantly higher than normotension group, but height and HDL cholesterol of hypertension group only in women significantly lower than normotension group. The frequency of obesity $(BMI\geq25kg/m^2)$, abnormal glucose $(\geq\;120mg/dl)$, hypercholesterolemia $(\geq\;240mg/dl)$, lower HDL cholesterol (<45 mg/dl in women only), higher LDL cholesterol $(\geq\;160mg/dl)$, and hyper hypertriglyceridemia $(\geq\;250mg/dl)$ in hypertension group of men and women were significantly higher than normotension group. 2. Systolic and diastolic blood pressure were negatively correlated with hight, but positively with age, weight, BMI, total cholesterol, LDL cholesterol, and triglyceride in men and women. BMI was positively correlated with fasting blood sugar, total cholesterol, LDL cholesterol and triglyceride but negatively with HDL cholesterol. 3. The age adjusted odds ratios of hypertension were as follows in men and women : among persons who were obese compared with those nonobese, 2.53 (95% Confidence Intervals [C.I.] 2.08-3.07) and 2.22 (95%C.I. 1.71-2.87): among persons who were abnormal glucose compared with those normoglycemic, 1.43 (95%C.I 1.13-1.82) and 2.01 (95%C.I 1.36-2.94): and among persons who were dyslipidemia (hypercholesterolemia or lower HDL cholesterol or higher LDL cholesterol or hypertriglyceridemia) compared with those normal lipid, 1.59 (95%C.I 1.30-1.95) and 1.51 (95%C.I 1.16-1.96). After combined more than one risk factor, the odds ratios were increased. Among persons with cluster of obesity, abnormal glucose, and dyslipidemia, the odds ratio of hypertension was 2.25 (95%C.I 1.47-3.37) in men and 3.02 (95%C.I 1.71-5.30) in women. In conclusion, it was suggested that hypertension was associated with cluster of obesity, abnormal glucose, dyslipidemia in this Korean urban population.

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로짓분석을 통한 중소기업 정책자금 지원의 위험예측력에 대한 연구 (The Study on the Risk Predict Method and Government Funds Supporting for Small and Medium Enterprises)

  • 최창열;함형범
    • 경영과정보연구
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    • 제28권3호
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    • pp.1-23
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    • 2009
  • 본 연구에서는 중소기업 정책자금을 지원받는 상장기업을 대상으로 위험 예측모형을 제시하고자 한다. 정책자금을 지원하는 기관 입장에서는 대상기업의 위험성을 판단하는 것은 자산의 건전한 운용을 위해 중요한 과제일 것이다. 리스크 예측 방법은 J.P.Morgon의 CreditMetrics를 이용한 보증기관의 경제자본 측정과 신용자산배분, 극단적 상황에서 이용할 수 있는 스트레스 테스팅(stress testing)기법, 판별 분석 모형, 로짓분석 등 다양한 방법이 존재한다. 본 연구에서는 로짓분석을 통해 정책자금의 건전한 운용을 위해 정책자금 지원 기관에 대한 부실위험을 살펴본다. 분석을 위해 먼저 기존 연구에 대한 검토와 최근 기업도산의 상황을 감안하여 14개의 재무지표를 선정한 다음 수행한 로짓회귀분석의 결과 추정계수로 로짓반응함수와 로지스틱 반응함수를 구성할 수 있다. 여기서는 정상기업/도산기업에 있어서 자기자본대타인자본비율, 매출액경상이익율, 총자산영업이익율, 총자산회전율, 매출채권회전율, 재고자산회전율만이 도산가능성을 예측하는데 유용한 변수로 선택되었다. 이는 재무비율 상호간의 높은 상호간 관계로 인하여 다수의 재무비율이 지닌 정보의 대부분이 소수의 재무비율에 의하여 파악될 수 있음을 의미한다. 또한 부실기업/도산기업의 구분에 있어서는 모든 비율이 두 그룹을 구분 짓는데 설명력이 높음을 나타내고 있다. 또한 총자산이익잉여금율이 높은 기업일수록 도산가능성이 낮다는 것을 두 그룹 모두에서 보여주고 있으며 회귀계수의 유의수준도 가장 높다. 금융비용부담율 또한 그 비율이 높은 기업일수록 도산가능성이 높다는 것을 제시하고 있다. 순운전자본비율, 자기자본비율, 매출액순이익율, 총자산영업이익율, 총자산회전율, 재고자산회전율은 도산기능성에 기대된 (-)의 영향을 미치는 것으로 나타나고 있다.

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관광 매력성과 이미지가 관광지 개발유형에 미치는 영향 연구 (A study of the Impact of Fourism Attractions and Images on the Destination Development Patterns)

  • 김계섭;김선영
    • 한국관광식음료학회지:관광식음료경영연구
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    • 제12권1호
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    • pp.79-110
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    • 2001
  • Tourist Destination is based on tourism attractions. Components of Tourism attraction are included tourism resources, entertainment facilities, transportation, accommodation, infrastructure, assistance facilities & service, hospitality, information facilities & service, and retailing & service. Tourism resources of them is the key to determine destination development pattern, because tourism attraction that attract tourists is based on tourism resources. Therefore, there are need to study what is tourism attraction of destination at the view of tourists and what is destination development pattern based on it to develop tourism attraction that is able appeal tourists. The purpose of this study is to examine what effect of tourism attraction affects destination development pattern. This study defined Haeundae, Kwanganri, Songjung, Taejongdae in Pusan, Korea as research areas. Research data were collected from 300 respondents by a simple random sampling method. A final 284 usable questionaries were used for empirical analysis after data purification process. Reliability and validity of the scale on the tourism attraction, destination image, and facility needs have been evaluated using Cronbach $\alpha$, item-total correlations. This study analyzed the factors of the tourism attraction and destination images. The result obtained that tourism attraction is divided relaxation attraction, local activity attraction, culture . nature attraction and touring circuit attraction, and destination image is divided culture . urban attractiveness, touring attractiveness, local . stay attractiveness, convenience of travel and relativeness for destination investigated. ANOVA and regression (stepwise) were used to test hypotheses. Based on the results of hypotheses testing, major findings of the empirical research are as follow : 1. The tourism attraction and destination image are significantly different, but facility needs are not significantly by destinations (e. g. Haeundae, Kwanganri, Songjung, Taejongdae) . 2. Destination development pattern is a(fact by the tourism attraction in partial. In case of Haeundea, relaxation attraction take effect partially spa, history and marine/spa tourism. 3. The destination development pattern is influenced by the destination image in partial. In case of Kwanganri, the natural . activity attractiveness and urban tourism images have been found as influential factors that affect marine tourism. 4. The destination images are influenced the physical attributes in literature review, but the destination image are taken effect partially the tourism attraction in this study. 5. Destination development pattern are influenced by the tourism attraction and the destination image partially. This research has provided a variety of practical suggestions. Especially, it was suggested that the destination have appeal to tourists by strengthening attraction and improving weakness. Also, we need to specialize destination in same destination development pattern.

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Y세대의 특성과 고객지향성의 관계 연구 - 직무만족의 매개효과 검증을 포함함 - (A Study on the Relationship between Y Generational Characteristics and Customer Orientation - Including Testing Mediating Role of Job Satisfaction -)

  • 최현정
    • 한국조리학회지
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    • 제23권2호
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    • pp.23-34
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    • 2017
  • 본 연구는 국내 호텔산업에 종사하는 Y세대인 서비스담당 직원을 대상으로 상사 지원, 재미, 직무만족 및 고객지향성의 인과적 관계를 규명하고자 설계되었다. 본 연구의 목적을 달성하기 위하여 1981년에서 2000년 사이에 출생하여 Y세대라 불리는 직원만을 조사 대상으로 한정하였다. 확보된 실증자료 분석을 위해 빈도분석, 확인적 요인분석, 신뢰도 분석, 상관관계분석, 회귀분석 및 PROCESS Macro 분석이 실시되었으며, 이를 위한 분석 프로그램은 SPSS 18.0과 AMOS 18.0이 적용되었다. 분석 결과, 재미는 직무만족과 고객지향성 모두에게 긍정적인 영향을 미치는 변수로 확인되었다. 그러나 상사 지원은 직무만족에는 긍정적인 영향을 미치는 것으로 확인되었으나, 고객지향성에는 직접적인 영향을 미치지 않는 것으로 나타났다. 또한 직무만족은 고객지향성에 직접적인 영향을 미치는 것으로 나타났다. 마지막으로 직무만족은 상사 지원과 고객지향성의 관계 그리고 재미와 고객지향성의 관계에서 모두 매개 작용이 유의한 것으로 확인되었다. 본 연구를 통해 직장 내 재미와 직무에 대한 만족감이 높을수록 직원의 고객지향성 행동이 향상됨을 알 수 있었다. 또한 상사의 지원은 직무만족을 통해 직원의 고객지향성 개선에 긍정적인 영향을 미칠 수 있는 요인임을 알 수 있다.

크기효과를 고려한 복부보강이 없는 고강도 콘크리트 보의 전단강도 예측식의 제안 (Prediction of Shear Strength in High-Strength Concrete Beams without Web Reinforcement Considering Size Effect)

  • 배영훈;윤영수
    • 콘크리트학회논문집
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    • 제15권6호
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    • pp.820-828
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    • 2003
  • 최근의 연구를 통해서, ACI 전단 규준은 크기가 크고 인장철근비가 낮은 보에서 비보수적 예측을 보이는 반면 깊은 보에 대해서는 보수적 예측을 보임을 알 수 있다. 이러한 ACI 전단 규준이 가지고 있는 문제점을 수정하기 위해, 본 연구에서는 스터럽이 없는 고강도 철근 콘크리트 보의 전단강도 계산시 크기효과와 아치작용을 고려한 극한 전단강도 예측식을 제안하였다. ACI 전단 규준의 수정을 위해 포함될 항은 과학적 이론 및 분석에 근거한 $f_{sr}$ (dr), $f_{si}$ (${\rho}$)와 $f_{aa}$ (a/d)항이며, 선형 및 비선형 회귀분석을 통해 도출되었다. 기존의 실험 데이터 약 300여 개를 이용하여 각각의 변수에 대한 제안식의 검증 및 제안식과 ACI 318-99 code, CEB-FIP model code, Kim &Park 식 및 Zsutty 식과의 비교를 수행하였다. 제안식은 간단한 형태를 지니고 있지만, 경제적이면서도 합리적인 안전율을 확보할 수 있는 전단강도를 예측한다. 따라서 제안식은 실무에서 콘크리트 구조물의 전단설계에 적용 가능할 것으로 판단된다.

암환아 가족의 가치관, 강인성과 적응과의 관계 (Relationships of Family Value, Vamily Hardiness and Hamily Adaptation in Family who has a Child with Cancer)

  • 박인숙
    • Child Health Nursing Research
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    • 제7권2호
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    • pp.179-190
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    • 2001
  • The purposes of the study were to develop an instrument for family value and to identify the relationships of family value, family hardiness, and family adaptation by appling the family value scale to family with cancer children. The study was conducted in three phases. 1) A survey was conducted from July 20 to August 20, 1999 and 18 items of general family value scale was modified from the data of 153 fathers and 164 mothers. 2) In-depth interviews were made with 29 parents of cancer children from April 20, 1998 to May 20, 1999 to develop family value scale with cancer children, and 12 statements were developed. 3) The final survey was conducted from July 18, 2000 to August 30, 2000 and the data from 309 parents of children who are diagnosed as cancer, 18 or less years of age, and treated either hospitalized or at the outpatient clinics were analyzed to identify the relationships of the concepts. The data analysis utilized SAS 6.12 and LISREL 8 for descriptive statistics, correlation, and Regression for path analysis. The study findings are as follows. The psychometric testing of general family value scale was Cronbach's alpha = 0.78. The reliability of the family value scale with cancer children showed the reliability as Cronbach's alpha = 0.73. Demographic characteristics showing significant correlations were cancer children's age, period of illness, period after completing treatment, mother's age, mother's education level, monthly income, payment type, confidence with health professional, and severity of children's illness. The correlation coefficients among major variables showed that family stressor was positively related with family strains(r=0.33, p<.001), and negatively related with family hardiness(r=-0.21, p<.001). Family strains was negatively related with family hardiness(r= -0.41, p<.001) and family adaptation(r=-0.46, p<.001). Correlations of family hardiness was positive with family value with cancer children(r=-0.31, p<.001), and negative with general family value(r=-0.16, p<.01). Family hardiness was positively related with family adaptation(r=0.35, p<.001). The causal relationship between study variables showed that family strains predicts general family value(γ=0.12, t=2.02), family value with cancer children predicts family hardiness(γ=0.31, t=6.30), family strains predicts family hardiness(γ=-0.40, t=-7.70), family value with cancer children predicts family adaptation(γ=-0.23, t=-4.11), and family hardiness predicts family adaptation(γ=0.43, t=7.78).

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외상성 뇌손상 환자에서 주의력이 실행기능에 미치는 영향 : 단계 모형의 검증 (The Effect of Attention on Executive Function in Traumatic Brain Injury Patients : Testing for Stage Model)

  • 정한용;박준호;이소영;김양래
    • 생물정신의학
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    • 제14권1호
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    • pp.61-67
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    • 2007
  • Objectives : The purpose of this study was to test stage model in Traumatic Brain Injury(TBI) patients. According to the stage model, attention deficits which is basic stage in information processing lead to memory disturbance and subsequently affect higher-order cognitive function such as memory, decision-making, abstract thinking, and judgement related to executive function. Therefore, it was hypothesized that attention affect recall(retrieval efficacy) related to executive function mostly relative to other cognitive function, in TBI patients with low executive function. Methods : Participants were referred to a TBI clinic and then was rated on K-WAIS and Executive Intelligence Test(EXIT). Participants were divided into two groups according to Executive IQ(EIQ) score, which of high function group(N=67) was more than 80(above low average) and of low function group(N=52) was under 80 (under borderline). To test the stage model, using hierarchical regression analysis, recall(retrieval efficacy) was regressed on 3 subscales(attention, verbal, visuospatial scale) after controlling for IQ according to each group. Furthermore, the mediation effect of attention between retrieval efficacy and verbal, visuospatial score was analyzed. Results : In the low function group, only attention area predicted significantly recall(retrieval efficacy), indicating that lower attention were related to lower EIQ after controlling for IQ. In the high function group, no area predicted significantly retrieval efficacy. In the low function group, verbal and visuospatial scale did not predicted significantly retrieval efficacy, indicating that there was no evidences supporting the mediation model. Conclusion : Only attention affect retrieval efficacy in TBI patients with low executive function. But, the mediation effect of attention between retrieval efficacy and verbal and visuospatial scale was not tested in the low function group. These results implied that stage model was tested partially. In treating cognitive deficit in TBI patients, it is necessary to develop cognitive rehabilitation program based on stage model. Furthermore, it is necessary to necessary to test mediation model in the future study.

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