• 한국식생활문화학회지
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• 제22권6호
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• pp.742-747
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• 2007

The purpose of this study was to measure the effects of menu price and image on perceived sacrifice and value of tourist restaurant, the mediating effects of perceived sacrifice on the relationships between menu price and value, and between image and value. A total of 273 questionnaires were completed. ANCOVA was used to measure the mediating effects of perceived sacrifice on the relationships among menu price, image, and value. When the menu price and perceived sacrifice were regressed on the value, the menu price and perceived sacrifice were statistically significant. Moreover, when the image and perceived sacrifice were regressed on the value, the image and perceived sacrifice had a statistically significant effects on value. The results demonstrated that perceived sacrifice played a mediating role in the relationship between menu price and value.

• Communications for Statistical Applications and Methods
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• 제24권3호
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• pp.241-254
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• 2017

Drawing a sample can be costly or time consuming in some studies. However, it may be possible to rank the sampling units according to some baseline auxiliary covariates, which are easily obtainable, and/or cost efficient. Ranked set sampling (RSS) is a method to achieve this goal. In this paper, we propose a modified approach of the RSS method to allocate units into an experimental study that compares L groups. Computer simulation estimates the empirical nominal values and the empirical power values for the test procedure of comparing L different groups using modified RSS based on the regression approach in analysis of covariance (ANCOVA) models. A comparison to simple random sampling (SRS) is made to demonstrate efficiency. The results indicate that the required sample sizes for a given precision are smaller under RSS than under SRS. The modified RSS protocol was applied to an experimental study. The experimental study was designed to obtain a better understanding of the pathways by which positive experiences (i.e., goal completion) contribute to higher levels of happiness, well-being, and life satisfaction. The use of the RSS method resulted in a cost reduction associated with smaller sample size without losing the precision of the analysis.

• 벤처창업연구
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• 제5권1호
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• pp.19-44
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• 2010

본 연구에서는 창업교육이 예비창업자의 심리적 특성 변화에 미치는 영향을 분석하는데 연구의 목적을 두고자 한다. 다시 말하면, 창업자의 심리적 특성이 창업교육을 받은 전과 수료 후 어떤 변화가 있는지에 대한 연구이다. 창업자의 심리적 특성으로는 기존 선행연구에서 주로 통제의 위치, 위험감수성향, 성취욕구, 모호성의 수용을 다루어 왔는데, 여기에 새로운 심리적인 특성인 창의성을 추가하여 연구하였다. 본 연구의 실증 분석을 위하여 서울과 대구의 성공창업패키지 교육 실행기관 중 임의의 기관을 선정하여 예비창업자 200명을 대상으로 대응표본 T-검증과 ANCOVA를 실행하였다. 분석결과는 창업교육전과 창업교육 후를 비교하여 볼 때 성취욕구와 모호성의 수용, 창의성은 향상되어진 것으로 나타났다. 다만 통제 위치와 위험 감수 성향은 창업교육 전 후에 차이가 없는 것으로 나타났다. 연령, 학력 그리고 창업교육 횟수에 따라 창업교육 전후의 심리적 특성의 차이가 있는 가에 대한 검증에서는 유의한 차이가 없는 것으로 나타났다.

• 한국학교보건학회지
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• 제20권2호
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• pp.1-12
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• 2007

Purpose: This study was to examine the effects of a obesity management program for obese children at a urban elementary school. Methods: The study subjects were fifty five 4^th-6^th graders (experimental = 29, control = 26) whose obesity indices were 120% or over fiunr two schools in a urban area. Obesity management program was conducted weekly 12 sessions with 60-day morning group exercises. Study instruments were Imbody 310 (BIOSPACE, 2005) and summated scales. Data were collected from April 6 to June 22, 2006 and analysed by descriptive statistics, X²-test and ANCOVA using SPSS/PC+ 14.0 program. Results: 1. Obesity management program was effective to reduce body weight (t = -2.54, p = .014), fat mass percent (t = -2.37, p = .021) and to increase muscle mass (t = 2.36, p = .022). And all these were also significant statistically in ANCOVA 2. Obesity management program were also effective to decrease level of obesity (t = -3.28, p = .002), and that of stress (t = -2.19, p = .033) and to improve food habit (t = 2.52, p = .016). And all these were also significant statistically in ANCOVA. Conclusion: School-based obesity management program for obese children was effective to reduce weight, fat mass percent, obesity, and stress; increase muscle mass; and improve food habit. School-based obesity management program, therefore, can be recommended as a health promotion measure in elementary school as curricular basis.

• 문화기술의 융합
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• 제9권6호
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• pp.73-83
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• 2023

이 연구는 자기결정성이론에 기반한 게이미피케이션 이러닝 수업을 개발하고 그 효과를 확인하기 위한 서술적 조사연구이다. 자료수집 기간은 2023년 3월 1일부터 6월 15일까지 G광역시 G대학교 학생 59명을 대상으로 강좌 전후 수업참여도, 학습몰입도, 교수실재감을 조사하였다. 수집된 자료의 분석은 IBM SPSS/Win 26.0을 이용하였으며 서술통계, 분산분석(ANOVA), 공분산분석(ANCOVA)을 실시하였다. 연구결과 자기결정성 기반 게이미피케이션 수업은 수업에 참여한 학생들의 수업참여도, 학습몰입도, 교수실재감을 유의하게 향상시켰다(p<.05). 연구대상자의 일반적인 특성이 사후 검사의 결과에 영향을 미쳤는지 알아보기 위해 공분산분석(ANCOVA) 실시한 결과, 성별이 학습몰입도의 사후 검사 결과에 영향을 미쳤으며, 그 영향력은 7.9%였다. 이 연구결과를 바탕으로 자기결정성 기반 게이미피케이션 이러닝수업이 학습자의 수업참여도, 학습몰입도, 교수실재감에 효과적임을 알 수 있었다. 대학에서 이러닝의요구가 확대되고 있으므로 자기결정성 기반 게이미피케이션 이러닝 수업이 교양 및 전공영역에서 다양하게 개발되어야 할 것이다.

• 대한간호학회지
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• 제35권2호
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• pp.303-312
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• 2005

Purpose: This study was to develop an aromatherapy hand massage program, and to evaluate the effects of lavender aromatherapy on cognitive function, emotion, and aggressive behavior of elderly with dementia of the Alzheimer's type. Method: The Research design was a nonequivalent control group non-synchronized quasiexperimental study. Lavender aromatherapy was administrated to experimental group I for 2 weeks, jojoba oil massage was administrated to experimental group II for 2 weeks, and no treatment was administrated to the control group for 2 weeks. Data was analyzed using the $x^2-test$, ANOVA, repeated measures of ANCOVA and ANCOVA in the SPSS program package. Result: 1. Experimental group I did not show significant differences in cognitive function in relation to the experimental group II and control group. 2. Experimental group I showed significant differences in emotion and aggressive behavior in relation to the experimental group II and control group. Conclusion: A Lavender aromatherapy hand massage program is effective on emotions and aggressive behavior of elderly with dementia of the Alzheimer's type.

• 대한임상독성학회지
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• 제15권1호
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• pp.40-46
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• 2017

Purpose: Glufosinate ammonium (GA; phosphinothricin) can induce neurological complications such as altered mental status, amnesia, and convulsions. This study was conducted to evaluate whether blood lipid profiles can help predict convulsions in patients with GA poisoning. Methods: This study was a retrospective review of data acquired at a tertiary academic university hospital from March 2014 to July 2016. Independent t-test, Mann-Whitney test and Analysis of covariance (ANCOVA) of demographic and laboratory findings of 50 patients with GA poisoning were performed to identify correlations of general characteristics and laboratory findings, including blood lipid profiles of GA-poisoned patients between with and without convulsions. Results: Convulsion as a GA complication showed a significant association with poison volume, age, white blood cell count, and creatine phosphokinase (CK), albumin, lactate dehydrogenase (LDH), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) content in blood according to an independent t-test and Mann-Whitney test. However, ANCOVA demonstrated significant association with LDL and triglyceride. Conclusion: Blood lipid profiles, especially serum LDL and triglyceride, were useful in predicting convulsions in patients with GA poisoning.

• 한국콘텐츠학회논문지
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• 제20권7호
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• pp.282-291
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• 2020

본 연구는 PBL 활동에서 교육과정 편성 과제의 구조화 정도에 따라 학생들의 문제해결력에 미치는 영향을 탐색하기 위해서 수행되었다. 연구는 교육과정 수업을 수강하는 대학생 60명을 대상으로 하였다. 학기 초 문제 해결력을 측정하였고, 중간고사 실시 이후에 PBL활동을 수행하였다. 실험집단 30명은 비구조화 된 PBL 형태의 과제를 수행하였고, 비교집단 30명은 반 구조화된 문제를 수행하였다. 과제 종료 후 학기 말에 문제해결력을 측정하였다. 사전·사후 검사 자료의 분석을 위해서 ANCOVA를 사용하였다. 그 결과 실험집단은 비교집단 보다 정보수집요인과 확산적 사고 그리고 평가 및 피드백 수준이 통계적으로 유의미하게 향상되었다.

• 부모자녀건강학회지
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• 제13권2호
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• pp.95-101
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• 2010

Purpose: This study is intended to identify difference postpartum depression according to delivery mode in the postpartum women. Methods: The subjects were 239 postpartum women in D and A city. Data collected from June 9, 2006 to August 6, 2007 using structured questionnaire surveys and convenience sampling. Measuring instrument was BDI (Beck Depression Inventory) translated By Lee and Song (1991). Collected data was analyzed by $x^2$-test, ANCOVA, Stepwise Multiple Regression with SPSS/PC 14.0. Results: There were significant differences in postpartum period ($x^2$=12.40, p = .002) and sleeping hours ($x^2$=9.09, p = .011) as analysed distribution of the subjects according to delivery mode. As result of analyzing the difference of postpartum depression according to delivery mode using ANCOVA, C-sec women's postpartum depression was higher than vaginal delivery women statistically (F=6.32, p = .013). As a result of Multiple Regression, income was a influencing factor of postpartum depression in vaginal delivery women and support of spouse and sleeping hours were influencing factors in C-sec women. Conclusion: There were differences in postpartum depression and their influencing factors according to delivery mode. Therefore it is necessary to develop and study a concrete nursing intervention and strategies for reducing the postpartum depression according to delivery mode.

• 보건교육건강증진학회지
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• 제26권1호
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• pp.39-50
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• 2009

Objectives: The purpose of this study suggests effective elementary school based smoking prevention education for preventing students from smoking, by examining and analysing a variety factors related to their knowledge and attitude on smoking. Pre-post quasi-experimental study was designed to analyze the effects of knowledge and attitude toward smoking of elementary school students. Methods: Data were collected by questionnaires from 135 students of the control group and 359 students of the experimental group in Korea, from June 4 to July 20, 2007. The reliabilities of instruments were adequate (Cronbach's alpha=.73-.79). Data were analyzed by t-test, $\chi2$-test and ANCOVA using SAS V8 program. Results: The results were as follows; 1. The ANCOVA models of the knowledge and attitude toward smoking were very significant to explain about education effects. 2. After the smoking prevention education, the smoking knowledge and attitude of the experimental group was significantly improved, whereas those of control group didn't. Smoking prevention education for elementary school students increased their level of smoking knowledge and desirable attitude. Conclusion: Therefore, it is necessary to give and develop a more effective program which is suitable to the subjects's needs and low grades before start smoking. Furthermore more various teaching methods such as VTR, lectures, role play and long term education program are need to be effective to change attitude and to improve the smoking knowledge.