• 제목/요약/키워드: Two-sample T-test

검색결과 581건 처리시간 0.032초

생활 한복의 치수규격 표준화에 관한 연구 (A Study on Size Standardization of Saengbwal Hanbok)

  • 남윤자;이형숙;이정임
    • 한국의류산업학회지
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    • 제3권2호
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    • pp.140-147
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    • 2001
  • The purpose of this study is to suggest the standard size system of Saenghwal Hanbok for design development and popularization. As a sample, 20's and 40's female data among the 1997's National Somatometry Survey data were used because two groups have different somatic characteristics and design tastes with each other. The results are as follows; From t-test of 35 somatometric items in 20's and 40's female data, we knew that the differentiated size system proper to each age is needed. We also knew that the 38 Saenghwal Hanbok brands don't have consistent size system from investigation of size list and size application. From consideration on the number of size for production and coverage rate, we suggested regression formula by bust circumference and stature, and suggested advanced standard size system which are proper to each 20' and 40' female group.

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입원 노인을 돌보는 가족원의 스트레스에 관한 연구 (A Study of Stress on the Family Caregivers for the Hospitalized Elderly)

  • 김강미자
    • 기본간호학회지
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    • 제3권2호
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    • pp.247-258
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    • 1996
  • This study explored the variables to influence the stress of the family caregivers providing care for the hospitalized elderly The subjects for this study were 104 family caregivers selected from the caregivers in the in patient departments of two major medical centers in Jeonju city. Data were collected from December 18th to 27th, 1995 using a Liker Scale Questionaire and interview. Data analyses included percentage, mean, standard deviation, t and F-test. Results were following : 1. The mean of this sample is 21.48, and the standard deviation is ${\pm}5.64$ in the perceived stress. The major variables to influence on the stress of caregivere for the hospitalized elderly were the stay (16-24hrs/day) in hospital(F=7.99, p=0.006), no other helpers(t=-2.56, P=.012), percieving severely on illness(F=3.90, P=.0232) perceiving moderately on physical health status(F=6.20, P=.0029). 2. Regarding the perceived social support of the family caregivers, the higher support the group perceived the lower stress(F=3.54, P=.0326).

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보건소간호사와 보건진료전담공무원의 문화역량 및 문화간호역량 교육요구 비교 (Difference in the Cultural Competency and Cultural Nursing Competence Educational Needs of Public Health Nurses and Community Health Practitioners)

  • 한영란;정여원
    • 한국보건간호학회지
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    • 제37권2호
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    • pp.233-246
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    • 2023
  • Purpose: The purpose of this study was to investigate the level of cultural competency and cultural nursing competence educational needs of public health nurses (PHNs) and community health practitioners (CHPs) and to uncover the difference between the two groups. Methods: The subjects of this study were 217 PHNs and 165 CHPs. Data were collected using a structured questionnaire. Descriptive statistics, an independent two-sample t-test, the x2 test, one-way ANOVA, and the Scheffé test were used for data analysis. Result: There was no statistically significant difference between the cultural competency of CHPs (4.27±1.00) and that of PHNs (4.10±1.07) which were at a moderate level. Among the subareas, cultural awareness and sensitivity were above average, but cultural skills and knowledge showed relatively low scores. There was no statistically significant difference between the cultural nursing competence educational needs of CHPs (3.85±0.65) and PHNs (3.90±0.70) and these were at a relatively high level. Among the subareas, knowledge of key concepts, cultural communication, and attitudes and skills were above average. Conclusion: The results of this study highlight the need to develop and implement educational programs to enhance the cultural competency of PHNs and CHPs nationwide using various teaching-learning methods.

초등학교 4학년 『별자리를 찾아서』 단원 지도를 위한 놀이 과학 교실 활동 프로그램의 개발과 적용 (Development and Application of Play-Based Science Class Program for the Unit of 'Favorite Constellation' of 4th Grade Students)

  • 신영아;손정주;서은경
    • 과학교육연구지
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    • 제33권2호
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    • pp.248-257
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    • 2009
  • 본 연구는 초등학교 4학년 "별자리를 찾아서" 단원지도를 위한 놀이 과학 교실 활동 프로그램을 개발하여 실제 수업에 적용해 봄으로써 놀이 활동 적용수업이 초등학생의 학업성취도와 흥미도에 미치는 효과를 알아보기 위하여 시행되었다. 초등학교 4학년 1학기 중간고사 결과를 분석하여 평균이 유사한 4개 반을 선정하고 2개 반으로 구성된 비교집단에는 기존의 방법대로 교사용지도서를 분석하여 교사용지도서와 같은 방식과 흐름으로 수업을 진행하였고 나머지 2개 반의 실험집단에는 단원의 5차시의 수업 중 활동 일부를 놀이 과학 교실 활동 수업을 적용하여 시행하였다. 놀이 과학 교실 프로그램은 연구 단원의 학습목표 및 내용과 탐구요소를 분석하여 개발 하였고, 놀이 과학 교실 활동이 학업성취도에 미치는 효과를 알아보기 위해 학업성취도 검사문항을 선정, 개발하였다. 각각은 과학 교육 전문가 2인과 현직 교사 5인에 의해 수 회의 피드백 검토 과정을 거쳐 완성되어 각 집단에 2주간에 걸쳐 5차시 수업이 실시되었다. 사후 검사결과에서 두 집단은 독립표본 t-test 방법에 의해 유의수준 p=0.003으로 유의미하게 차별화 되었고, 실험 집단은 비교 집단에 비해 좋은 학업 성취도를 보였다. 설문 조사를 통한 실험집단의 흥미도 측정에서도 높은 흥미도 비율을 보였다. 결과적으로, '별자리 찾아서' 단원을 위한 놀이 과학 교실 활동 프로그램을 개발하여 초등학교 4학년 교실에 투입해 본 결과 학업성취도와 흥미도에서 뚜렷하게 긍정적 영향을 볼 수 있었다.

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폐용적과 폐기능 환기장애에 대한 유의성 평가 (Significance Evaluation of Lung Volume and Pulmonary Dysfunction)

  • 김지율;예수영
    • 한국방사선학회논문지
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    • 제17권5호
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    • pp.767-773
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    • 2023
  • 본 연구에서는 폐용적에 영향을 미치는 관련 인자들과 폐기능 환기장애에 대한 유의성을 평가하고자 하였다. 실험대상으로는 저선량 흉부 CT검사와 폐활량검사를 동시에 수행한 정상 성인 남·여 206명을 선정하였으며 실험방법으로는 저선량 흉부 CT검사로 획득한 폐 CT 영상을 이용하여 폐용적을 딥러닝 기반의 AVIEW LCS 자동진단 프로그램을 이용하여 측정하였다. 그리고 폐활량계를 이용하여 폐기능을 측정한 결과를 획득하였으며 폐용적에 영향을 미치는 관련 인자로 성별 및 BMI를 선정하여 폐용적과의 독립표본 T-test를 통하여 유의성을 평가하고자 하였다. 실험결과 성별에 따른 폐용적의 평가에서 남성의 모든 폐용적이 여성의 모든 폐용적보다 크다는 것을 확인할 수 있었다. 성별 및 폐용적에 대한 각각의 평균값을 이용한 독립표본 T-test 결과 남성이 여성보다 모든 폐용적이 더 크다는 결과는 유의한 결과를 나타내었다(p<0.001). 그리고 BMI 지수에 따른 폐용적의 평가에서 BMI 지수 24 이상의 성인의 모든 폐용적이 BMI 지수 24 미만의 모든 폐용적보다 크다는 것을 확인할 수 있었다. 그러나 BMI 지수 및 폐용적에 대한 각각의 평균값을 이용한 독립표본 T-test 결과 BMI 지수 24 이상이 BMI 지수 24 미만보다 모든 폐용적이 더 크다는 결과는 유의한 결과를 나타내지 않았다(p<0.055). 폐기능 환기장애 유무에 따른 폐용적의 평가에서 폐기능 환기 정상성인의 모든 폐용적이 폐기능 환기 장애성인의 모든 폐용적보다 크다는 것을 확인할 수 있었다. 그리고 폐기능 환기장애 유무 및 폐용적에 대한 각각의 평균값을 이용한 독립표본 T-test 결과 폐기능 환기 정상성인이 폐기능 환기 장애성인보다 모든 폐용적이 더 크다는 결과는 유의한 결과를 나타내었다(p<0.001). 폐용적과 폐활량 검사 결과는 폐 건강을 평가하는데 가장 중요한 지표이며, 이 두 지표를 함께 사용하여 폐 기능을 평가하는 것이 가장 정확한 평가 방법이다. 그러므로 본 연구에서는 폐용적과 폐활량 검사에 대한 향후 유사 연구 시 폐기능 환기 정상 성인과 폐기능 환기 장애 성인에 대한 폐용적 평균값을 제시하여 기초자료로 활용될 것이라고 사료된다.

커피음용이 단기간 근육작용 활성화에 미치는 영향 (Effects of Coffee on Activation of Muscular Working During a Short Period)

  • 이준우;조강희
    • 한국전문물리치료학회지
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    • 제14권3호
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    • pp.72-80
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    • 2007
  • The purpose of this study was to verify the effects on fine motor, muscle strength (hand-grip), explosive muscular strength (vertical jump) and muscular endurance (sit-up) after ingesting coffee. Hence this study targeted a sample group of 38 healthy men in their twenties, without cardiac disorders and muscle disorders and none of them were hypersensitive to caffeine with symptoms such as palpitation and dyspnea. Nineteen of them ingested coffee, whereas the other nineteen men ingested decaffeinated coffee at the same amount. The amount of coffee was controlled by weight so as to regulate intake to 6 mg caffeine per kg. Research material was evaluated through O'Conner's finger dexterity test, hand-grip strength test, vertical jump test and sit-up test. The data were analyzed by means of paired t-test and ANCOVA. The material was then, analyzed by means of two-way ANOVA in order to verify the effect of one or two cups of coffee on fine motor and hand-grip strength. All parameters were measured by an independent observer. The results were as follows: There were no significant differences to fine motor, hand-grip strength, vertical jump, sit-up before and after drinking decaffeinated coffee, but there was a difference to those before and after drinking caffeine coffee. There was no significant difference to hand dexterity and hand-grip strength in one or two cups of coffee. Intake of a certain dosage of caffeine effects activation of muscles working in a short period based on the results. As a consequence, intake of certain dosages of caffeine was beneficial to enhance efficiency of activity during exercises, but it is will be difficult to obtain the desired result with only one or two cups of coffee.

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실내공간의 시뮬레이션 구성과 뇌파측정에 의한 공간인지 분석 - 공공건물 내 경로인지를 중심으로 - (Perception Analysis with Composing of Simulation and Measuring of Human Brain Electroencephalogram in Interior Space - Focus on the Perceptionof Wayfinding in Public Interior Space -)

  • 김태환
    • 한국실내디자인학회논문집
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    • 제36호
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    • pp.128-135
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    • 2003
  • The purpose of this study was to analyze the perception of wayfinding in public interior space. According to this study, a virtual reality simulation test was conducted to examine the effect of wayfinding. Theoretical research was used to explain the psycho-physiological effect of visual perception and case study was carried out to evaluate the physiological response of the subjects. For the physiological evaluation, two simulations with sign and color sample were chosen and the EEG was Used. Data were collected from May 15th. to June 15th. The subjects were 20 students of architecture department and frequency, percentage, ANOVA, T-test, multiple comparisons were used for data analysis.

일 지역 고혈압 환자의 약물치료 이행의 영향요인 (Factors Influencing Medication Adherence in Hypertensive Patients)

  • 서영미
    • 지역사회간호학회지
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    • 제21권1호
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    • pp.82-91
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    • 2010
  • Purpose: The purpose of this study was to identify factors that influence medication adherence in patients with hypertension. Methods: One hundred sixty two patients with hypertension who visited the outpatient clinics of health centers in J City participated in the study. Data were collected through a questionnaire survey done from January 9 to February 25, 2008. To analyze the sample survey data, descriptive statistics, t-test, ANOVA, Scheffe's test, and multiple regression analysis were performed with SPSS/WIN 12.0. Results: Significant factors that affect medication adherence in patients with hypertension were autonomous motivation, competence, health status, and sex. These variables explained 24% of medication adherence (F=12.48, p<.001). Conclusion: The results indicate that in order to improve the medication adherence of patients with hypertension it is important to develop nursing programs that focus on autonomous motivation and competence and to give consideration to differences in health status and sex. Also further studies are needed to confirm autonomous motivation related to health behavior in patients with hypertension.

수입의류와 국산의류의 불만족에 관한 비교연구 (A Comparative Study of Dissatisfaction towards Imported and Domestic Clothing)

  • 박혜정;박재옥
    • 한국의류학회지
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    • 제26권2호
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    • pp.364-375
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    • 2002
  • The purpose of this study is to identify the differences between married women's dissatisfaction towards imported and domestic clothing and to test the role of socioeconomic variables on dissatisfaction. Two-piece formal suit was selected as the item, and country of origin of imported suit was not controlled. Sample selection criteria included married women living in Seoul, Korea, between ages 30-59. The data were analysed using factor analysis, paired t-test, and one-way ANOVA. The results indicate, in the Korean clothing market, both international and Korean marketers should be prudent with their price policies and should implement differentiated marketing strategy based on their target market's demogrophic profile. Higher dissatisfaction towards domestic clothing in terms of most factors, under the rapidly globalizing market environment suggests the Korean marketers will be forced to face full-scale harsh competition from international marketers.

음악요법이 노인백내장 수술환자의 활력징후, 불안, 코티졸 및 통증에 미치는 효과 (Effect of Music Therapy on Vital Signs, Anxiety, Cortisol and Pain of Cataract Surgery Patients in Elderly)

  • 박정해;박광희
    • 디지털융복합연구
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    • 제13권8호
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    • pp.549-558
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    • 2015
  • 본 연구는 음악요법이 노인백내장 수술환자의 활력징후, 불안, 코티졸 및 통증에 미치는 효과를 검증하고자 설계된 비동등성 대조군 사전 사후 유사설계 연구이다. 연구대상은 I시의 G대학병원에서 백내장 수술을 받은 만 65세 이상 노인 41명으로 음악요법을 적용한 실험군 21명과 적용하지 않은 대조군 20명으로 구성되었다. $x^2$ test, Fisher's exact test, 독립표본 t-test, Mann-Whitney U test 등을 분석에 활용하였다. 연구결과를 보면 활력징후 변화에서는 차이가 없었으나 불안, 코티졸 농도, 통증은 실험군에서 유의한 감소를 보여, 다빈도 수술 1위인 백내장수술에 음악요법 적용하는 것이 불안 및 통증을 경감시킨 것을 재확인 할 수 있었다. 노인백내장 수술환자에게 음악요법이 불안, 통증 감소에 효과가 있다는 것을 확인한 결과를 토대로 다양한 중재 분야에서 노인환자에게 음악요법의 적용이 활성화되기를 제언하는 바이다.