• Title, Summary, Keyword: Significance level

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Effects of Mathematics Instruction that Emphasize the Mathematical Communication (수학적 의사소통을 강조한 수학 학습 지도의 효과)

  • 이종희;최승현;김선희
    • The Mathematical Education
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    • v.41 no.2
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    • pp.157-172
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    • 2002
  • The purpose of this study is to improve middle students'mathematical communication ability. We designed the mathematics instruction model based on Vygotsky's ZPD to develop the mathematical communication ability, and applied to 2nd grade students in Middle School. And we investigated the significant differences between the group which was instructed with mathematical communication and the group which was instructed with teacher's traditional explanation in aspects of learning achievement, mathematical disposition, and mathematical communication abilities. The results of the study are as follows : 1. There is no significant difference in learning achievement within significance level .05 between the group which was instructed with mathematical communication and the group which was instructed with teacher's traditional explanation by t-test. 2. There is a significant difference in reflection within significance level .01 and in self-confidence within significance level .10 by MANCOVA. 3. There is a significant difference in mathematical communication ability within significance level .01 between two groups by covariance analysis. In particular, there is a significant difference in reading within significance level .01 and in speaking within significance level .05 by t-test.

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The Effect of Kinesio Taping on the Change of Muscle Strength and Endurance in Trunk Flexion and Extension in Chronic Low Back Pain(CLBP) (만성요통 환자의 테이핑 적용 시체간의 굴곡과 선전의 근력과 지구력의 변화 측정)

  • Kim, Su-Hyung
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.11 no.2
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    • pp.40-48
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    • 2005
  • In this study, the muscle strength and endurance of the lumbar at flexion and extension were determined using an isokinetic muscle strength meter (Biodex) in patients with chronic lumbar go (10 male and 10 females), and the changes in muscle strength and endurance of the lumbar at flexion and extension after application of Y-shaped sacrospinalis muscle taping, typically used for patient with lumbar go, were studied. In addition, the sacrospinalis muscle taping of a different shape (I-shaped taping) was applied bilaterally centering on the spine, and the muscle strength and endurance of the lumbar at flexion and extension were determined and compared with those before taping. In addition, the results after application of Y-shaped taping and I-shaped taping were also compared. 1. The extensor muscle strength of the lumbar at loading of $60^{\circ}$/sec before application of kinesio Taping and after application of Y-shaped taping showed the level of significance (p<.05). The flexor muscle strength of the lumbar at loading of $60^{\circ}$/sec before application of kinesio taping and after application of Y-shaped taping did not show the level of significance. 2. The flexor muscle endurance of the lumbar at loading of $90^{\circ}$/sec before application of kinesio Taping and application of Y-shaped taping did not show the level of significance. The extensor muscle endurance of the lumbar at loading of $90^{\circ}$/sec before application of kinesio Taping and after application of Y-shaped taping did not show the level of significance. 3. The extensor muscle strength of the lumbar at loading of $60^{\circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). The flexor muscle strength of the lumbar at loading of $60^{\circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). 4. The flexor muscle endurance of the lumbar at loading of $90^{\circ}$/sec before application of kinesio taping and after application of I-shaped taping showed the level of significance. The extensor muscle strength of the lumbar at loading of $90^{\circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). 5. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the flexor muscle strength of the lumbar at loading of $60^{\circ}$/sec did not show the level of significance. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the extensor muscle strength of the lumbar at loading of $60^{\circ}$/ sec showed the level of significance (p<.05). 6. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the flexor muscle strength of the lumbar at loading of $90^{\circ}$/sec did not show the level of significance. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the extensor muscle strength of the lumbar at loading of $90^{\circ}$/sec did not showed the level of significance (p<.05).

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A Bayesian Hypothesis Testing Procedure Possessing the Concept of Significance Level

  • Hwang, Hyungtae
    • Communications for Statistical Applications and Methods
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    • v.8 no.3
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    • pp.787-795
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    • 2001
  • In this paper, Bayesian hypothesis testing procedures are proposed under the non-informative prior distributions, which can be thought as the Bayesian counterparts of the classical ones in the sense of using the concept of significance level. The performances of proposed procedures are compared with those of classical procedures through several examples.

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Perception and Evaluation of Quality of Hospital Information System (병원정보시스템 품질에 대한 인식 및 평가)

  • Lim, Jung-Do
    • The Korean Journal of Health Service Management
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    • v.8 no.1
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    • pp.1-13
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    • 2014
  • The purpose of this study is to investigate the perception of quality property of hospital information system, the quality level, and its effects. The participants were 730 employees who are using hospital information system in hospitals. In order to analyze the relationship, the quality property regulates the consideration of user's taste and the state of user's favor for the design of hospital information system, and the quality level regulates user's convenience and properness. The main results from this study can be summarized as follows, First, the perception of quality property for hospital information system showed few significance level between occupation, but revealed significance level between position. The evaluation of quality level showed significance level depending on the occupation and position. Second, quality property which generally affects to the quality level of the hospital information system were different between types of occupation and quality factor.

A Study of the Effect by Cervus Elaphus Aqua-Acupuncture on the Hypogonadism induced by Hydrocortisone Acetate in Rats (녹용수침자극(鹿茸水鍼刺戟)이 명문화쇠형(命門火衰型) 양위(陽萎)에 미치는 영향(影響))

  • Yoon, Jong-Hwa;Kim, Kap-Sung
    • The Journal of Dong Guk Oriental Medicine
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    • v.2 no.1
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    • pp.55-71
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    • 1993
  • In order to investigate the effect of Cervus elaphus aqua-acupuncture on the hypogonadism in male rats, hydrocortisone acetate was adminsterd per mouse to induce hypogonadism and a series of Cervus elaphus aqua-acupuncture and normal saline aqua-acupuncture treatments were done into the loci corresponding to Shinsu($BL_{23}$) for 10 days. The level of urinary 17-ketosteroids. serum FSH, prolactin, LH, testosterone and body weight were measured. The obtained results are summarized as follows. 1. The level of urinary 17-ketosteroids was increased by Cervus elaphus aqua-acupuncture with the statistical significance as compared with the control group. 2. The level of serum FSH was increased by Cervus elaphus aqua-acupuncture with the statistical significance as compared with the control group. 3. The level of serum prolactin was increased by Cervus elaphus aqua-acupuncture with the statistical significance as compared with the control group. 4. The level of serum LH was increased by Cervus elaphus aqua-acupuncture with the statistical significance as compared with the control group. 5. The level of serum testosterone was decreased by Cervus elaphus aqua-acupuncture with the statistical significance as compared with the control group. 6. Body weight change was increased by 3rd, 6th and 9th day after the Cervus elaphus aqua-acupuncture and 3rd,6th day after normal saline aqua-acupuncture with the statistical significance as compared with the control group.

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The Correlation between the Variables of Family Circumstances and Personality and that of the Child's Mathematical Ability (아동의 가정환경변인 및 인성변인과 수학적 능력변인과의 상관성에 관한 연구)

  • Oh Byung Seung;Bai Jong Soo
    • The Mathematical Education
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    • v.24 no.2
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    • pp.74-104
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    • 1986
  • This study aims at investigating the correlation between such variables as a child's family circumstance and personality and that of the child's mathematical ability. For the objects of the study five hundreds and sixteen students (male 273, female 243) were andomly selected from the fifth grade primary school students in the city of Seoul. For the tool of measure the investigation of Korean family circumstances with particular characteristics, the personality test by Chong Pom Mo and Kim Ho Kwon, and the intelligence test by Lee Sang Ro, Chin Whal Kyo and Pyon Chang Jin were employed. For the statistical analysis S. A. S. C., the statistical analysis package of KAIST was employed. The resutis of the test can be summarized as follows. The correlation between the variable of family Circumstance and that of mathematical alility 1) In case of the significance level 0.05 the education of the childs mother and the order of the child's birth have much to do with the perception speed. In case of the significance level 0.1 it makes some difference in the child's perception spead whether the clild's mother has a job or not. 2) In case of the significance level 0.05 the education of the child's father and mother, the father's job and the type of habitation have influence on the child's perception of space. 3) In case of the significance level 0.05 the education of the child's father and mother, the father's job, the order of the child's birth, the type of habitation, their religion, and their cultural, and economic standard have influence on the child's ability of inference. 4) In case of the significance level 0.05 the education of the child's father and mother, the father's job, the type of habitation, their religion and their cultural and economic standard have influence on the child's ability of calculation. 5) In case of the significance level 0.05 any variable of the child's family circumstance has nothing to do with the child's memory. In case of the significance level 0, 1 the type of family and the type of habitation have effect on the child's memory. 6) In case of the significance level 0.05 the education of the child's parents, the jobs of the parents, the type of habtation, their religion, and their cultural and economic standard have influence on the child's linguistic notion. The correlation between the variable of the child's personality and that of the child's mathematical ability 1) In regard to the priority of the variables influencing the child's perception speed, the child's discretion comes first in order, and then sociability and impulsiveness of the child. 2) The child's discretion has effect on the child's space perception. 3) The child's discretion has effect on the child's ability of inference. 4) In regard to the child's ability of calculation the child's discretion comes first in order, and then impulsiveness and sociability of the child. 5) The child's discretion has effect on memory. 6) The child's discretion has effect on the child's linguistic notion.

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Rejection Degree by Fuzzy Significance Probability

  • Choi, Gyu-Tag;Park, Il-Soo;Nam, Hyun-Woo;Moon, Jong-Choon
    • Journal of the Korea Society For Power System Engineering
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    • v.18 no.1
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    • pp.135-139
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    • 2014
  • We propose some properties for fuzzy hypothesis test by fuzzy significance probability. First, we define fuzzy number data and fuzzy significance probability for repeatedly observed data with alternated error term. By the agreement index, we compare fuzzy significance probability with significance level and drawing conclusions the degree of acceptance and rejection by agreement index.

Review and Derivation of Sample Size Determination for Hypothesis Testing and Interval Estimation (가설검정 및 구간추정에서 샘플크기 결정규칙의 고찰 및 유도)

  • Choi, Sung-Woon
    • Proceedings of the Safety Management and Science Conference
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    • pp.461-471
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    • 2012
  • Most useful statistical techniques in six sigma DMAIC are hypothesis testing and interval estimation. So this paper reviews and derives sample size formula by considering significance level, power of detectability and effect difference. The quality practioners can effectively interpret the practical and statistical significance with the rational sample sizing.

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Fuzzy hypotheses testing by ${\alpha}-level$

  • Kang, Man-Ki;Jung, Ji-Ypung;Park, Woo-Song;Lee, Chang-Eun;Choi, Gue-Tak
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • pp.153-156
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    • 2006
  • We propose some properties of fuzzy p-value and fuzzy significance level to the test statistics for the fuzzy hypotheses testing. Appling the principle of agreement index, we suggest two method for fuzzy hypothesis testing by fuzzy rejection region and fuzzy p-value with fuzzy hypothesis to separately ${\alpha}-level$.

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A Study on the Levell of Learning Achievement by Teaching Method on the Subject of Home Economics in the Middle School (중학교 가정과 학습지도의 형태에 따른 학습성과에 관한 연구 -식생활 단원을 중심으로-)

  • 손희숙;황임섭
    • Journal of Korean Home Economics Education Association
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    • v.2 no.1
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    • pp.101-110
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    • 1990
  • The purpose of this study is to survey the learner’s need achievement, interest and practical level of the learning objectives according to the teacher’s teaching method in home economics of middle school(Dietary Life Unit), to examine the differences according to the local situation, and to get some information to improve the teaching method. This study surveyed the eight units of dietary life with 459 students in the rural community (224 students) and Seoul(235 Students). The collected data were analyzed by T-test, F-test. To sum up this study are as follows: 1. When the need, achievement, interest and practical level of unit “food”are compared the students of seoul with those of rural community, the student of Seoul show high in “The use of Processed Foodstuffs” and low in “Cooking the Processed Foodstuffs.”The student of rural community show in “A kind of Cooking Method”and low in “Environment and Food Life”. 2. The need, achievement, interest, practical level of the whole unit in rural community is higher than those is Seoul. 3. According to teaching method, comparison Seoul with rural community is revealed as follows. Seoul region is revealed significance to discovery learning in “Cooking Foodstuffs(The achievement and interest level) and ”Environment and Food Life”(interest level). Rural community is revealed significance to discussion learning in “The constituent and Food Life”(The need level, interest level). Rural community is revealed significance to explanation learning in “Environment and Food Life”(The achievement level).

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