• Title/Summary/Keyword: Test hypothesis

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Effect of the Structured Education for Knowledge of Hepatitis B Type and Self Care Behavior in Chronic Hepatitis B Patients (구조화된 환자교육이 만성 B형 간염환자의 B형 간염에 관한 지식과 자가간호 수행에 미치는 효과)

  • Eum Sun-Ja
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.5 no.1
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    • pp.65-79
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    • 1998
  • The purpose of this study was to identify the effect of structured patient education on knowledge of Hepatitis B type and behavior about self care in chronic hepatitis B patients, and to fine the strategy to promote their self care behavior. The research design was quasi-experiment research. The study method had been done by investigating the experimental group and control group through the questionnaire on 50 patients who had been out patient medicine department in U university hospital in Ulsan from september 1st 1997 to the end of October, 1997. The analysis of the collected material had been done for the homogeneity test in which general characterics of experimental group and control group had been tested by $x^2-test$ and the homogeneity test of the knowledge of hepatitis B type and self care behavior before by t-test. To test the hypothesis the t-test had been given for the difference of the knowledge of hepatitis B type and self care behavior between the two groups and the correlation between knowledge of hepatitis B type and self care behavior performance had been tested by Pearson's correlation coefficient. The results as follows : 1. The 1st hypothesis 'The experimental group which received the structured education should be higher in the knowledge of hepatitis B type than the control group' was supported(t=-6.25, P=.000). 2. The 2nd hypothesis 'The experimental group which received the structured education whould be higher in the self care behavior performance than the control group' was supported(t=-5.15, P=.000). 3. The 3rd hypothesis 'The higher the knowledge of hepatitis B type in the patient the higher the self care behavior performance degree' was supported(r=.492, P=.001). In conclusion, the patients who received the structured education showed the increase in the degree of knowledge of hepatitis B type and self care behavior performance. so the structured education had been judged the nursing intervention had been prerequisite in increasing knowledge of hepatitis B type and self care behavior performance of the chronic hepatitis B patients.

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The Effect of Relaxation Technique on Reduction of Postoperative Pain (이완술 사용이 수술후 동통 감소에 미치는 영향)

  • 박정숙
    • Journal of Korean Academy of Nursing
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    • v.15 no.1
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    • pp.76-96
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    • 1985
  • Postoperative pain is one of the most frequently occurred pain in hospitals, but it has been underestimated because it is only a part of postoperative physiological Process and may disappear in time. It is necessary that nurses me the relaxation technique, planning and implementing by themselves independently, to reduce this postoperative pain. This study is aimed at showing the effect of relaxation technique on reduction of postoperative pain, and exploring the factors influencing postoperative. pain Fifty-seven patients with abdominal surgery who admitted in attacked D Medical Center to K University in Daegu have been studied. Of them twenty-nine were experimental group and the remaining twenty-eight were control group. This study has been conducted for collecting data through interviews and observation from August 23 to October 24, 1984. The tools of this study were two kinds: Postoperative Pain Scale is obtained from a review of references by the researcher, and relaxation technique, designed to use postoperative setting adequately, is also obtained from a review of references by the researcher. After confiriming no significant differences between the two groups, the hypotheses were statistically verified by x²-test, t-test, and pearson Correlation Coefficient. The results of this study are summerized as follows; * The nam hypothesis that the experimental group who use relaxation technique will have less degree of postoperative pain than the control group who don't use relaxation technique is devided into three sub-hypotheses. 1. The first sub-hypothesis that the experimental group will have less score of postoperative pain than control group was accepted (t=7.810, p <.01). Even with controlling pain threshold, showing difference in some degree between the two groups, the experimental group has less score of postoperative pain than the control group. Therefore this confirms the acceptance of the first sub-hypothesis more strongly. 2. The second sub-hypothesis that the expermental group will have less frequency of analgesics than the control group is accepted (x²=9.85, p <.01). 3. The third sub-hypothesis that the experimental group will have less variation of pulse, respiration, and blood pressure between pre End post operative periods than the control group is rejected. So this hypothesis is reverified through comparing the variation of pulse, respiration, and blood pressure between pre and post changing Position to measure the pure effect of relaxation technique. pulse and respiration is significantly lowered in the experimental group (t=7.209, p<.01, t=3.473, p<.01), but systolic and diastolic blood pressure is not different significantly between the two groups (t= 1.309, p>.05, t=1. 727 p>.05). Therefore the third sub-hypothesis is partially accepted. Conclusively, the researcher thinks that it is necessary that nurses should provide patients with relaxation technique to reduce postoperative pain, and to increase independence of nursing.

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A Comparative Study of the Effect of Two Analgesic Administration Methods on Post Operative Pain (수술환자에 었어서 마약성 진통제의 자가투여 방법과 근육주사 방법의 효과에 대한 비교연구)

  • 이정화
    • Journal of Korean Academy of Nursing
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    • v.27 no.2
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    • pp.401-410
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    • 1997
  • An acute pain is the common experience following surgery. Pain is a most miserable experience in person and most preoperative patients have fear o! postoperative pain. In nursing, it is very important to understand and relieve the pain of post oprative patients as much as possible. This study was designed to compare the descriptive patterns of pain between group of Patient Controlled Analgesia and group of traditional Muscular Injection in surgcal patients. This information can be utilited as data of understanding nursing care and treatment planning for pain in surgical patients. The subjects in this study were 45 post-hysterectomy patients in Gynecology ward in C. N. U. H., in Taejon. Data was collected from May 12 to June 27. 1996. The instrumants used for this study were subjective Visual Analog Scale, Objedive nonverbal pain scale composed of Facial Apperance. Vocal Sound Change, and Sweating score. and the Melzack's Mcgill pain Qusetionaire. nine Items of Developmental Pain Intensity Scale by Lee En Ok. Analysis of data was done by using S. P. S. S. percentage, t-test, x²-test. ANOVA, and Repeated measure ANOVA. Results were obtained as follows. 1. Hypothesis 1 : There was very highly statistically significant difference in subjective self-report pain score(Visual Analog Scale) between PCA Group and IM Group(P=0.0001). 2. Hypothesis 2 : There was very highly statistically significant difference in muscle strength score (Visual Analog Scale) between PCA Group and IM group(P0.0001). 3. Hypothesis 3 : There was very highly statistically significant difference in facial appearance score between PCA Group and IM group(P=0.0001). 4. Hypothesis 4 : There was very highly statistically significance difference in vocal sound change score between PCA Group and IM group(P=0.0001). 5. Hypothesis 5 : There was no statistically significant difference sweating scores between PCA group and IM group(F=2.50, P=0.1220). But, postoperation time of 12, 24 was statistically difference between two groups(P=0.0001). So, it was partially supported. 6. Hypothesis 6 : There was very highly statistically significant difference in vocabulary pain score between PCA Group and IM group. 7. Hypothesis 7 : There was very highly statistically significant difference in amounts of total analgesic between PCA Group and IM group. There was very highly statistically significant difference in Visual Analog Pain Score, Facial Appearance Score, Vocal Sound Change Score, Vocabulary Score, amounts of total analgesic between PCA group and IM group. So, It is verified to asses of postoperative pain with VAS, Checklist of facia appearance, vocal sound change, and sweating, and Vocabulary Scale.

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Role and Process of Abduction in Elementary School Students' Generation of Hypotheses concerning Vapor Condensation (수증기 응결에 관한 초등학생들의 가설 생성에서 귀추의 역할과 과정)

  • Shim, Hae-Sook;Jeong, Jin-Su;Park, Kuk-Tae;Kwon, Yong-Ju
    • Journal of the Korean earth science society
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    • v.24 no.4
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    • pp.250-257
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    • 2003
  • The purpose of this study was to test the hypotheses that student's abductive reasoning ability plays an important role in hypothesis-generating about vapor condensation, and student's hypothesis-generating requires their causal explicans as well as experience. To test the hypotheses, the instruments of hypothesis-generation, prior knowledge, and experience with vapor condensation were developed and administered to 6th grade students. This study found that 72 subjects among 89 students who had prior knowledge about vapor condensation failed to apply their prior knowledge to hypothesis-generating about the vapor condensation. This result showed that the students' failure in hypothesis-generating was related to their deficiency in abductive reasoning ability. In addition, this study showed that 54 subjects among 56 students who had experience with vapor condensation also failed to generate hypotheses. This result supported that student's causal explanations were separated from their experience. Therefore, this study suggests that science education should include the teaching of abductive reasoning skills for developing student's hypothesis-generating skills.

A Nonparametric Bootstrap Test and Estimation for Change

  • Kim, Jae-Hee
    • Communications for Statistical Applications and Methods
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    • v.14 no.2
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    • pp.443-457
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    • 2007
  • This paper deals with the problem of testing the existence of change in mean and estimating the change-point using nonparametric bootstrap technique. A test statistic using Gombay and Horvath (1990)'s functional form is applied to derive a test statistic and nonparametric change-point estimator with bootstrapping idea. Achieved significance level of the test is calculated for the proposed test to show the evidence against the null hypothesis. MSE and percentiles of the bootstrap change-point estimators are given to show the distribution of the proposed estimator in simulation.

Some versatile tests based on percentile tests

  • Park, Hyo-Il;Kim, Ju-Sung
    • Journal of the Korean Data and Information Science Society
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    • v.21 no.2
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    • pp.291-296
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    • 2010
  • In this paper, we consider a versatile test based on percentile tests. The versatile test may be useful when the underlying distributions are unknown or quite different types. We consider two kinds of combining functions for the percentile statistics, the quadratic and summing forms and obtain the limiting distributions under the null hypothesis. Then we illustrate our procedure with an example. Finally we discuss some interesting features of the test as concluding remarks.

The Effect of Sexual Rehabilitation Education on the Knowledge and Adjustment of Sexual of Spinal Cord Injury Clients (성 재활 교육이 척수장애인의 성 지식과 성 적응에 미치는 효과)

  • Kim, Eun-Kyung;Lee, Hyang-Yeon
    • The Korean Journal of Rehabilitation Nursing
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    • v.3 no.2
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    • pp.127-140
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    • 2000
  • The purpose of this study is to identify the effect of sexual rehabilitation education on the knowledge and adjustment of sexual of spinal cord injury clients by the method of nonequivalant control group pretest-posttest group. The data were collected from Jan. 19 though Feb. 16, 2000. The experimental group was 26 spinal cord injury client from one rehabilitation center, and the control group was 26 spinal cord injury client from two rehabilitation center. Sexual rehabilitation education was done with manuals, videotapes and chart. Education time was 120 minutes a week for 2 weeks. The study tool was about Sexual Knowledge, designed Song, Chung Sook(1990) and SIAC(Sexual, Interest, Activity, & Satisfaction) designed Kruter, Sullivan, Siosteen(1994) translated by Kang, Hyun Sook, Koh, Jung Eun, Suh, Yeon Ok, Yee, Oon Hee(1999). The collected data were analyzed SPSS program. The Data were analyzed descriptive statistics and $X^2$ test, Pearson's Correlation Coefficient, t-test, F-test (ANOVA), Duncan's multiple comparison test. The result were as follows. 1. The first hypothesis was accepted : The group educated about sexual rehabilitation has more sexual knowledge than those of the uneducated group(t = 7.412, p = .001). 2. The second hypothesis was accepted : The group educated about the sexual rehabilitation has more adjustment of sexual than those of the uneducated group(t = 5.524, p= .001). 3. The third hypothesis was accepted: The higher sexual knowledge state, the higher sexual adjustment(r= .449, p= .003). According to results, sexual rehabilitation education helps Spinal cord Injury Clients to gain knowledge and adjustment of sexual.

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An Experimental Approach to Uncanny Valley Hypothesis (Uncanny Valley 가설에 대한 실험적 접근)

  • Jang, Phil-Sik
    • Journal of the Ergonomics Society of Korea
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    • v.26 no.1
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    • pp.47-53
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    • 2007
  • The uncanny valley is a hypothesis about robotics concerning the emotional response of humans to robots and other non-human entities. Although it stands today as one of the robots and synthetic characters, the uncanny valley was speculative and few studies have been performed to test the theory. In two experiments, a total of 183 participants were employed to explore this hypothesis. The results of experiment 1 indicate that the perceived human likeness of a robot is not a key factor causing uncanny valley. And the results of experiments 2 suggest that even if the appearance and motion of a robot become fully human, the emotional response of humans could not reach human-human empathy levels.

The Impact of Free Trade Agreements on Foreign Direct Investment: The Case of Korea

  • Bae, Chankwon;Jang, Yong Joon
    • East Asian Economic Review
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    • v.17 no.4
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    • pp.417-444
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    • 2013
  • This paper aims to empirically identify the effects of FTAs on outward and inward FDIs in Korea. Considering the income differences between Korea and its FTA partners, we hypothesize that FTAs have a positive effect on outward FDI to developing countries and inward FDI from developed countries. An underlying source of the hypothesis is the Knowledge-Capital model, addressing the positive (negative) relationship between trade costs and horizontal (vertical) FDI. We test for the hypothesis using data on Korea's FTAs and FDI over the period 2000-2010. We find that our empirical results support the hypothesis, and additionally, FTAs in general encourage FDI by creating an FDI-friendly environment.

A Study of the Factors that Impact Chinese Consumers' Purchasing Intent for High-Tech Products

  • Yi, Shan;Su, Shuai
    • Asian Journal of Business Environment
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    • v.4 no.1
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    • pp.37-40
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    • 2014
  • Purpose - This objective of this study is to analyze the factors that impact Chinese consumers' purchasing intent for high-tech products. The study examines smart phones'features, Chinese personal consumer characteristics, and social influence. Research design, data, and methodology - The study employed survey data based on 200 questionnaires in principal Chinese cites between October and December 2011. SPSS 17.0 was employed to analyze the data used to test the hypotheses the analysis results confirmed some hypotheses proposed. Results - Hypothesis 1, Hypothesis 4, and Hypothesis 7 proposing that utilization, social image, and attractiveness, respectively, of smart phone elements influence the Chinese consumers' purchasing intent are supported. Conclusions - This study found the factors that impact purchasing intent for high-tech products among Chinese consumers, with some factors like social image, attractiveness, and utilization playing critical roles; however, hypotheses proposing factors such as ease of use, pleasantness, personal innovativeness, and compatibility were rejected. In future, more research focusing on the elements of smart phones is required.