• 제목/요약/키워드: Quasi-Experiment Design

검색결과 136건 처리시간 0.018초

개별교육이 혈액투석환자의 투석관련 지식, 환자역할행위 이행 및 생리적 지수에 미치는 효과 (Effects of Individualized Education on Knowledge, Compliance, and Physiologic Parameters in Hemodialysis Patients)

  • 김영주;유양숙
    • 성인간호학회지
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    • 제18권3호
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    • pp.367-376
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    • 2006
  • Purpose: This study was designed to explore the effects of providing individualized education for hemodialysis patients on their knowledge of hemodialysis, compliance of patient role behavior, and physiologic parameters. Method: A quasi experimental design with a non-equivalent control group and a non-synchronized design was used. The experiment was conducted with a total of 40 hemodialysis patients (20 in the experimental group and 20 in the control group) at the artificial kidney center, C University Hospital. The experimental group was provided with individualized education, 30 minutes per session, three times per week, for two weeks. Results: The experimental group had significantly higher knowledge of hemodialysis than the control group after the education. The compliance of patient role behavior was more enhanced in the experimental group than the control group. The experimental group showed significantly higher values of blood urea nitrogen, but not the values of blood creatinine, albumin, kalium, and phosphorus. Conclusion: The individualized education was found to be an effective intervention for improving patients' knowledge of hemodialysis and compliance of patient role behavior.

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지역사회간호학 실험연구의 동향분석 - 지역사회간호학회지 창간호~2012년 게재논문을 중심으로 - (Trend Analysis of Experimental Research Papers on Community Health Nursing - Based on Researches Published in the Journal of Korean Academy of Community Health Nursing, 1989~2012 -)

  • 김춘미;임승주
    • 지역사회간호학회지
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    • 제25권2호
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    • pp.146-157
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    • 2014
  • Purpose: The objective of this study is to analyze systematically the trends of experimental researches in the area of community health nursing. Methods: This is a study based on literature review, which analyzed 137 experimental research papers in the Journal of Korean Academy of Community Health Nursing, from the first issue in 1989 to those in 2012. Results: 1) The proportion of experimental researches in the total published papers was 14.9%. 2) The mainly used research method was quasi-experiment, which was 60.6% of them, and there was no RCT. 3) Convenient sampling was used in 95.6% of the researches. 4) Only 5.1% were reviewed for keeping the ethical standards for the study objects by the IRB. 5 When classified by the Omaha Classification System, psycho-social researches were most frequent, which were followed by physiological, health-related behavioral, and environmental ones in order of frequency. Conclusion: This study found that the proportion of experimental research papers was increasing in the 2000s and ethical standards were required more rigorously. However, it was suggested that the research design be more elaborated and sampling methods be manifested to reduce research bias and errors.

새로운 Tension Split Hopkinson Bar를 이용한 박판의 고속 인장시험 (High strain rate tensile test of sheet metals with a new tension split hopkinson bar)

  • 강우종;조상순;허훈;정동택
    • 대한기계학회논문집A
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    • 제21권12호
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    • pp.2209-2219
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    • 1997
  • A split hopkinson bar could be used for obtaining the high strain rate material properties of sheet metals for an autobody. In high speed tensile tests of sheet matals, a new design of a tension split Hopkinson bar apparatus is needed. The design of grips and an anvil length are numerically analyzed with ABAQUS/Explicit for the new apparatus of split Hopkinson bars. From the experiments with the new apparatus, the material properties of SPCEN in the high strain rate state have been acquired and compared with quasi-static experimental results. The material properties of SPCEN as well as other sheet metals in an autobody are indispensible for the analysis of crashworthness. Nevertheless the experiment of sheet metal in the high strain rate state has not been done or reported.

의복범주가 젊은이의 대인지각에 미치는 영향 -유행성 및 착용자의 체형과 관련지어- (The Effect of Garment Category, Fashionability and Wears' Body type on Impression Formation)

  • 김재숙;김희숙
    • 한국의류학회지
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    • 제16권4호
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    • pp.371-377
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    • 1992
  • The purposes of the study were 1) to extend the cognitive categorization theory in an attempt to explain the of garment category, fashionability, and wearer's body types on impression formation, and 2) to find out structures of wearer's impressional dimension and wearer's professional image. The research included a quasi-experiment and survey. The experimental design was a $2^{3}$full factorial design of 3 independent variables. The experimental materials developed for the study were a set of stimuli and a response scale. The stimuli consisted of 8 drawings made by 3 independent variables (garment category, fashion level, wearer's body type). Result were as follows: 1) Garment category, fashionability and wearer's body type had significant effects on impression of the 5 factors-evaluation, potency, appearance, sociability and good-bad, with exception of wearer's body type which was nonsignificant to the potency factor. 2) Garment category was most effective on the evaluation and the potency. However wearer's body type was most effect on the appearance factor and fashionability variable was most effective on the good-bad factor. It was conclued that the results supported the cognitive categorization theory on impression formation and a cognitive categorization hypothesis of clothes.

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최대 수의적 수축 동안 뒤넙다리근 근력 반복성의 남녀 차이 (Sex differences in repeatability of measurement for hamstring strength during maximal voluntary contractions)

  • 임우택
    • 대한물리치료과학회지
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    • 제27권1호
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    • pp.9-17
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    • 2020
  • Background: This study aimed to examine the repeatability of hamstring strength during maximal voluntary contractions (MVCs) and to examine the sex difference. Design: Quasi-experiment design. Methods: The study recruited 23 healthy young individuals as participants. Hamstring flexibility was measured before and after MVCs by active knee extension test. Five trials of MVCs were performed, and hip extension forces were measured using a strain gauge during MVCs. Repeatability was confirmed by intraclass correlation coefficient (ICC) and coefficient of variation, and the difference between male and female participants was confirmed by independent samples t-test. Results: The forces measured during MVCs were significantly different between men and women over five trials. We observed the minimum and maximum force production at the first and fifth trial of MVCs in both men and women. Excellent to moderate reliability of the hamstring strength during MVCs was found in men (ICC range, 0.70-0.98) and women (ICC range, 0.66-0.90). There was no significant difference in hamstring flexibility between men and women. Conclusion: In clinical settings, we recommend excluding the first trial of MVCs in both men and women. Additionally, performing at least three trials of MVCs would be useful to improve the reliability of the baseline measures in women.

건장한 20대 흡연·비흡연 남성의 흡기근 호흡 훈련이 폐기능에 미치는 영향 (Effects of the inspiratory muscle breathing training on the lung function in 20s healthy smoking and non-smoking male)

  • 이양진;김경훈
    • 대한물리치료과학회지
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    • 제27권1호
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    • pp.26-33
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    • 2020
  • Purpose: The purpose of this study is to find the difference in lung function effects between a healthy adult male smoker, non-smoker after inspiratory muscle breathing training. Design: Quasi-experiment design. Method: In this study, we want to compare the effects of the inspiratory muscle breathing training smoker group (n=11) and non-smoker group (n=10) to target the healthy adult 21 people. All participated underwent 30 minutes of inspiratory muscle breathing training (5 times per week, for a total of 4 weeks). Using the spirometer in order to examine the ability to lung function EVC, ERV, FEV1/FVC was measured. Result: The results showed that the smoker group FVC and FEV1 increased statistically significantly (p<0.05). The results showed that the non-smoker group FVC and FEV1 increased statistically significantly (p<0.05). There was no statistical difference between them. Conclusion: This study tested the adult male smoker and the adult male non-smokers using inspiratory muscle breathing training the effect of smoking on lung function.

An Efficient Overlapped LDPC Decoder with a Upper Dual-diagonal Structure

  • Byun, Yong Ki;Park, Jong Kang;Kwon, Soongyu;Kim, Jong Tae
    • JSTS:Journal of Semiconductor Technology and Science
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    • 제13권1호
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    • pp.8-14
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    • 2013
  • A low density parity check (LDPC) decoder provides a most powerful error control capability for mobile communication devices and storage systems, due to its performance being close to Shannon's limit. In this paper, we introduce an efficient overlapped LDPC decoding algorithm using a upper dual-diagonal parity check matrix structure. By means of this algorithm, the LDPC decoder can concurrently execute parts of the check node update and variable node update in the sum-product algorithm. In this way, we can reduce the number of clock cycles per iteration as well as reduce the total latency. The proposed decoding structure offers a very simple control and is very flexible in terms of the variable bit length and variable code rate. The experiment results show that the proposed decoder can complete the decoding of codewords within 70% of the number of clock cycles required for a conventional non-overlapped decoder. The proposed design also reduces the power consumption by 33% when compared to the non-overlapped design.

발반사 마사지가 항암화학요법을 받는 난소암 환자의 불안과 불편감에 미치는 효과 (Effects of Foot Reflexzone Massage on State-Anxiety and Discomfort in Ovari an Cancer Patients Receiving Chemotherapy)

  • 황경혜;최의순;유양숙
    • 여성건강간호학회지
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    • 제11권3호
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    • pp.209-217
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    • 2005
  • Purpose: This study was conducted to investigate the effects of foot reflexzone massage on state - anxiety and discomfort of ovarian cancer patients receiving chemotherapy. Method: A quasi experimental design with a non equivalent control group and non synchronized design was used. The experiment was conducted from October 1, 2003 to September 30, 2004. The subjects consisted of 40 patients admitted to C University Hospital. Twenty subjects were assigned to the experimental group and received foot reflexzone massage everyday for 3 days. The other 20 subjects were in the control group and received routine care. Foot reflexzone massage was done on both feet of the subjects for 30 minutes for 3 days using standard protocol. The 'State-Anxiety Inventory' developed by Spielberger was used to measure the degree of state-anxiety. Discomfort was assessed using the 'Symptom Distress Scale' of McCorkle and Young. Data was analyzed by a SAS program using t-test, Wilcoxon signed rank sum test and Wilcoxon rank sum test. Results: State-anxiety and discomfort of subjects receiving foot reflexzone massage were significantly lower than those of the control group. Conclusion: These findings indicate that foot reflexzone massage could be an effective nursing intervention for relieving state-anxiety and discomfort in ovarian cancer patients.

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글로벌 건설 엔지니어링 고급인력 양성사업의 성과평가 (Performance Evaluation of Premier Global Construction Engineer Training Program)

  • 박현;박인석
    • 한국건설관리학회논문집
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    • 제19권3호
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    • pp.97-104
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    • 2018
  • 본 논문은 S대학교 '글로벌 건설엔지니어링 고급인력 양성사업'의 성과를 평가하고, 성과제고에 영향을 미치는 요인을 파악하고자 한다. 본 인력양성 사업의 순수한 효과를 파악하기 위하여 준실험설계법을 적용하였다. 즉, 프로그램에 참여한 각 졸업생의 업무능력을 해외건설업무 및 분야가 가장 유사한 경력을 가진 짝(pair)으로 선택한 대조군 전문가의 업무능력과 비교하였다. 분석결과, 졸업생의 업무역량이 대부분의 글로벌 건설 엔지니어링 핵심역량이 대조군에 비하여 통계적으로 유의미하게 높아, 인력양성 프로그램이 업무역량 향상에 기여하고 있는 것으로 평가된다. 또한, 회귀분석을 통하여 재학생들의 인력양성 향상에 영향을 미친 교과목을 분석하였다. 업무역량 향상에는 사업초기 단계의 사업 기획에 필요한 업무역량인 민관협력(PPP), 사업타당성조사 및 위험분석, 프로젝트 금융 등의 과목이 인력양성 향상에 기여하는 것으로 분석되었다. 또한, 해외 인턴십, 글로벌 인턴십 세미나와 같이 학생들의 해외 네트워킹 강화 및 커뮤니케이션 능력 제고를 위한 과목들도 인력양성 프로그램 제고에 기여도가 높은 과목으로 분석되었다. 본 연구 결과가 향후 유사한 프로그램의 계획 및 운영에 유용한 참고가 될 것으로 기대한다.

발 반사요법 교육프로그램 제공이 간호대학생의 장 기능, 불안 및 우울에 미치는 효과 (Effects of Foot Reflexology Education Program on Bowel Function, Anxiety and Depression in Nursing Students)

  • 김영희;최의순
    • 여성건강간호학회지
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    • 제9권3호
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    • pp.277-286
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    • 2003
  • Purpose: The purpose of this study was to probe the effect of foot reflexology education program on nursing students with constipation, anxiety and depression. This study was a quasi-experimental study of pre-test and posttest design on non-equivalent control group. Method: The data of this study were collected from October 28, to December 14, 2002. The subjects consisted of 61 nursing students (experimental group: 31, control group: 30) with constipation, anxiety and depression. 31 out of them were devided into the experimental group and received foot reflexology education program that was authorized by the World Foot Reflexology Association and made to suit for the subjects by the author for 6weeks composed of 2 weeks theory and of 4 weeks practical skill on the program. The effect of the program was measured by Bowel Function Assessment Form for constipation, State Anxiety Inventory, and Beck Depression Inventory. Data were analyzed by t-test, $x^2$-test, Repeated measures ANOVA, Bonferroni multiple comparison using SAS/PC 8.12 program. Result: After all session of treatment, the score of bowel function assessment were significantly decreased in the experimental group compared to the control group. Outcomes of 6 and 7 weeks were significantly different from those of pre-experiment. After all session of treatment, anxiety states were significantly decreased in the experimental group compared to the control group. Outcomes of 7 weeks were significantly different from those of pre-experiment. After all session of treatment, depression states were significantly decreased in the experimental group compared to the control group. Outcomes of 6 and 7 weeks were significantly different from those of pre- experiment. Conclusion: The results are suggested that the foot reflexology education program might improve the bowel function, anxiety and depression for the nursing students with constipation, anxiety and depression.

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