• Title/Summary/Keyword: Spearman coefficient

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The Effect of Strategic Orientation on Market Performance: Study of the Mediators

  • Langroudi, Hamed Rahimpour;Sharifi, Moslem;Langroudi, Hossein Rahimpour
    • The Journal of Industrial Distribution & Business
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    • v.10 no.4
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    • pp.33-41
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    • 2019
  • Purpose - This study investigates the effect of strategic orientation on market performance with emphasis on the mediative role of innovation capability, economic value and relational value in food producer companies. Research design, data, and methodology - In this descriptive study, a population of 244 managers and employees of Food industry companies in Tehran were investigated. The respondents filled a questionnaire on strategic orientation, innovation capability, economic value, relational value and market performance, during January to August 2018. Reliability and validity were evaluated by Cronbach's alpha coefficient and confirmatory factor analysis. To analyze the data, Spearman's correlation coefficient and structural equation modeling were used by SmartPLS software. Results - Effects of competitor's orientation and technology orientation on all three intermediary variables were positive and significant. The effect of customer orientation on innovation and economic value was positive and significant, but the effect of customer orientation on the value of the relationship was insignificant. Furthermore, entrepreneurial orientation has a positive and significant effect on innovation capability. The effects of three mediator variables on market performance are positive and significant. Conclusions - As the relationship between the mediator variables and market performance were positive and significant, companies should have a comprehensive plan of focus on strengthening these variables.

Oswestry Low Back Pain Disability Index and Related Factors in Patients with Low Back Pain (일부 요통환자들의 오스웨스터리요통장애지수 및 관련요인)

  • Yi, Seung-Ju
    • The Journal of Korean Physical Therapy
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    • v.20 no.4
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    • pp.21-28
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    • 2008
  • Purpose: We measured the Oswestry Low Back Pain Disability Index (OLBPDI) and related factors in patients with low back pain. Methods: The sample consisted of 50 patients who received physical therapy at the physical therapy units of the Andong Seoul Sintong Clinic, St. Luke Clinic, and Yeongju Seoul Sintong Clinic in Andong and Yeongju city from October, 2007, to February, 2008. The OLBPDI questionnaire was administered by 5 physical therapists as a cross-sectional study. Student's t-test and analysis of variance (ANOVA/Tukey and Scheffe) were used to analyze OLBPDI score differences. We also used nonparametric statistic analysis (Wilcoxon rank sum test, Median test). Pearson correlation analysis (Spearman correlation analysis) was used to analyze the relationship between OLBPDI and the visual analogue scale (VAS). Multiple regression analysis was performed to determine the effects of independent variables on pain scores as defined by the OLBPDI. Results: The average patient age was 37.1 years (range: 18$\sim$78 years old), and time from onset was 21.7 months (1$\sim$180). OLBPD and VAS scores were 12.70 (3.0$\sim$28.0) and 5.14 (1$\sim$8), respectively. OLBPDI scores were 14.4 in patients taking medicine and 11.57 in those who did not. There was a statistically significant relationship between OLBPDI and VAS (r=0.54, p=0.0001; r=0.55, p=0.0001 by Spearman coefficient). Gender ($\beta$=6.14, p=0.0124), age ($\beta$=-2.01, p=0.0324), weight ($\beta$=0.31, p=0.0222), time from onset ($\beta$=1.54, p=0.0044), and VAS score ($\beta$=1.59, p=0.0004) were significantly associated with OLBPD by multiple regression analysis. Conclusion: Variables associated with OLBPD were gender, age, weight, time from onset, and VAS score. Collecting information on the pain index using OLBPDI was acceptable to patients with low back pain. Further research should explore the pain index by using larger sample sizes and longer follow-up periods.

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A Study on the State of Fashion Marketing Using the SNS -Focused on the Facebook- (SNS를 이용한 패션업체의 마케팅 실태 연구 -Facebook을 중심으로-)

  • Kim, Tae-Jin;Chin, Seong-Ah
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.5
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    • pp.2305-2312
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    • 2012
  • Rapid evolutions in recent years related to IT (information technology) which has been exceedingly developed make it possible to utilize its application in broad fields as providing a convenient way to gather and to reuse information. As smart phones have been sporadic nowadays which boost increase of SNS in real-time making more dynamic, it is becoming more worthful as a marketing tool in the field of fashion area. In this study, we have explored some case studies in which they are actively using Facebook. We have selected 10 fashion brands to compare their activities in boards containing 'notice', 'like this', 'people talking about this' and 'event'. We also conduct the correlation analysis between the indicators above, using Spearman's rank correlation coefficient. As a consequence, we can confirm that 'notice' highly correlates with 'like this', but we cannot find any other correlations between the other factors. As a reasult, marketing in Facebook is more efficient communication way between the companies and customers than using other current mass media, it shows that SNS in fashion marketing could be an innovative solution to overcome current limitations caused probably by lack of communications.

The Measures of Agreement between the Classification Standard of BMI and that of CDRS in Women university students (여자대학생의 BMI와 신체상평정척도(CDRS) 분류기준에 대한 일치도 검정)

  • Nam, Duck-Hyun
    • Journal of Digital Convergence
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    • v.14 no.2
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    • pp.519-527
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    • 2016
  • This research aims at investigating the measures of agreement between BMI classification standard and that of 9-point contour drawing rating scale(CDRS), verifying their usefulness for the application to the filed, examining university students' substantial understanding of their bodies, and offering correct information regarding the distorted recognition of their bodies. In order to examine the measures of agreement between the classification standard of BMI and that of CDRS, and the women university students' recognition of their body images depending on BMI, Cross tabulation was carried out, and ${\chi}^2$, Spearman rank correlation coefficient and kappa statistics were calculated. As the analysis results, the classification standards of CDRS and BMI judged by general female college students showed statistically the correlation was high with ${\rho}=.719$(p<.001) and an average level of confirmity with ${\kappa}=.506$(p<.001). Based on these results, regarding body shape, sizes and shapes according to racial characteristics need to be controlled later.

A Clinical Study on the Repeatability and Reproducibility of Portable Ryodoraku Device (포터블 양도락의 반복성.재현성에 대한 임상 연구)

  • Lee, Ji In;Ko, Seong Cheol;Song, Ho Sueb
    • Journal of Acupuncture Research
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    • v.30 no.3
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    • pp.135-140
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    • 2013
  • Objectives : The purpose of this study is to investigate the repeatability and reproducibility of the Ryodoraku acupuncture device. For such device to be accepted as a good apparatus for clinical diagnosis, the score it provides should be stable no matter who measure it or when it is measured, assuming all other conditions equal. Materials and Methods : Three oriental medical doctors who were well trained and fully aware of the usage of the Ryodoraku acupuncture device examined ten randomly selected patients three times. Each doctor measured the Ryodoraku scores three times from each of the 10 selected patients. Three doctors were involved in this experiment to investigate the reproducibility and each of them measured the Ryodoraku scores three times from each patient to investigate the repeatability. Data was analyzed with Friedman test, Spearman correlation test, and intra-class correlation coefficient(ICC) in SPSS ver. 18. Results : 1. The Friedman test showed that there is no statistically significant difference between the 1st, 2nd and 3rd Ryodoraku scores measured by the same examiner. It indicates that the Ryodoraku acupuncture device provides the repeatability. 2. Spearman correlation test confirmed the results obtained by the Fiedman test by showing that there exists a strong positive correlation between the three Ryodoraku scores measured by the same examiner. 3. A very high ICC among the three examiner assured that the Ryodoraku acupuncture device achieves the reproducibility. Conclusions : The Ryodoraku acupuncture device achieves the repeatability and reproducibility. However, we still recommend that a doctor trained to a certain level use the Device to carry out the diagnosis. Also, to improve the device in terms of Reproducibility even more, it should be considered to provide a manual for the exact usage.

Importance of Nurses's Caring Behaviors as Perceived by Staff Nurses and Patients (간호사와 환자가 지각한 돌봄행위 중요도에 관한 연구)

  • Kim Young-Yi;Lee Byoung-Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.6 no.1
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    • pp.18-34
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    • 1999
  • Nurse's caring behaviors are essential to help patients cope with their health problems. The purpose of this study was to investigate the importance of nurse's caring behaviors as perceived by staff nurses and patients. The subjects were 295 staff nurses and 340 patients from five medical centers in Taegu. Data collection was done from Dec. 10, 1997 to Jan. 31, 1998. The tool for this study was a 7 point Likert type scale with 27 earing behaviors developed by Lee(1996). Cronbach alpha of the tool was .9701 in staff nurses and .9618 in patients. Data were analyzed with SAS using t-test, ANOVA and Spearman rank correlation program. The results are as follows : 1. The a verage score of perceived importance of nurse's taring behaviors for the 27 items was 5.65 in staff nurses and 4.97 in patients. 2. The most important caring behaviors perceived by the nurses was 'Nurse gives painless and cautious injection and treatment for patients' and for the patients, 'Nurse gives hygienic treatment and nursing care'. 3. The caring behavior which showed a significant difference between the ranks of perceived importance by staff nurses and patients was 'to treat the patient with tenderness and friendship'. 4. The Spearman rank correlation coefficient between the ranks of importance perceived by staff nurses and patients was 0.8302. With the results of this study, the staff nurses could be recognized to have much enthusiasm and passion about caring. It is suggested that nurses let the public know about the nurses' caring roles. In the future, research to investigate the actual practice of nurses' caring behavior is necessary.

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Study on the factors affecting dental caries of preschool children. - Study focused on preschool children in province, Chugcheongnam-do - (학령전기 아동의 치아우식증 발생에 영향을 미치는 요인 조사 - 충남 일부지역 아동을 중심으로 -)

  • Bae, Sung-Suk;Noh, Hie-Jin
    • The Journal of Korean Society for School & Community Health Education
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    • v.12 no.2
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    • pp.69-80
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    • 2011
  • Objectives: The purpose of this study was to explore relationship among dft index, diet and oral health behavior, parental awareness in oral health care and social status. Methods: This study was conducted from 8 January, 2009 to 11 June, 2009 in Asan city and Seosan city in Chungnam area. 4 kindergratens, 3 preschools and 1 children language academy were randomly selected to research on dft index, diet and oral health behavior. cross-sectional study conducted among 561 valid samples out of 641 samples collected using the survey was and then followed by oral examination. Throughout the research, numerus SPSS 15.0 statistical techniques, T-test and ANOVA and Spearman correlation coefficients were used for analysis. Results: Key results of the study are as follows: Age was found to be statistically very significant to dft index(p=0.036). Age of mother, especially between 30 to 49, was found to be statistically significant to dft index rate(p=0.001). Occupation of father was also found to be statistically significant to dft index(p=0.036). High parental awareness in oral health care led to low dft index rate, which also was found to be statistically significant(p=0.036). Conclusions: In conclusion, as Spearman correlation coefficient demonstrates, occupation of father affects most on long-term healthy oral behavior followed by parental awareness in oral health care and age of mother.

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General Population Time Trade-off Values for 42 EQ-5D Health States in South Korea (시간교환법을 이용한 일부 EQ-5D 건강상태의 질 가중치 측정)

  • Jo, Min-Woo;Lee, Sang-Il
    • Journal of Preventive Medicine and Public Health
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    • v.40 no.2
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    • pp.169-176
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    • 2007
  • Objectives : This study was conducted to elicit quality weights for 42 EQ-5D health states with the time trade-off (TTO) method from the general population of South Korea. Methods : We selected the same EQ-5D health states as those in the UK MVH study. The Korean version of EQ-5D questionnaire and TTO method were used for the valuation process. We interviewed 500 people as a representative sample of the general population in Seoul and Gyeonggido. The result was compared with those from UK, Japan, and USA by Spearman's rank correlation and t-test. Results : TTO values for 42 EQ-5D health states and 'unconscious' state were obtained from the general South Korean population. The best one was '11112' state and the worst one was 'unconscious' state. The states worse than death were '33323', '33333', and 'unconscious' states, which had negative TTO values. There was a strong correlation between TTO values of the EQ-5D health states and those of their corresponding states from UK, Japan, and USA (Spearman's correlation coefficient: 0.885, 0.882, and 0.944, respectively, p <0.001). However, absolute TTO values of most EQ-5D health states were significantly different from those of their corresponding states in other foreign studies (UK : 41/42, USA : 32/42, Japan : 15/17). Conclusions : We found that the Korean general population TTO values for EQ-5D health states were different from those of other foreign studies, suggesting that a specific Korean valuation set should be developed and used for economic evaluation studies in South Korea.

Validity and Reliability of a Korean Version of Yale Food Addiction Scale for Children (YFAS-C) (한국판 청소년용 음식중독도구의 타당도와 신뢰도)

  • Kim, Jung Ho;Song, Ji Hyun;Kim, Ran;Jang, Mi Young;Hong, Hyon Joo;Kim, Hyun Ji;Shin, Sung Hee
    • Journal of Korean Academy of Nursing
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    • v.49 no.1
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    • pp.59-68
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    • 2019
  • Purpose: This study evaluated the psychometric properties of the Korean version of Yale Food Addiction Scale for Children (YFAS-C). Methods: Participants were 419 young adolescent students (11~15 years old). The content validity of the expert group was calculated as the content validity index (CVI) after the translation and reverse translation process of the 25 items of the YFAS-C. The multitrait-multimethod matrix (MTMM) method was used to verify the construct validity; the generalized linear model (GLM) was used to evaluate the concurrent and incremental validity. Reliability was calculated as Kuder-Richardson-20 (KR-20) and Spearman-Brown coefficients. Results: The CVI of the 25 items was greater than the item-level CVI .80 and the scale-level CVI .90. The Korean version of YFAS-C had verified convergent validity in emotional eating and external eating and discriminant validity in restrained eating. In addition, it had verified concurrent validity in emotional eating and external eating. Finally the incremental validity of the Korean version of YFAS-C was statistically significant on BMI. Reliability was KR-20 ${\alpha}=.69$ and the Spearman-Brown coefficient was .64. Conclusion: The Korean version of YFAS-C is a valid and reliable scale for measuring the severity of food addiction; it can be a useful scale for preventing obesity by predicting food addiction early.

Detecting Similar Designs Using Deep Learning-based Image Feature Extracting Model (딥러닝 기반 이미지 특징 추출 모델을 이용한 유사 디자인 검출에 대한 연구)

  • Lee, Byoung Woo;Lee, Woo Chang;Chae, Seung Wan;Kim, Dong Hyun;Lee, Choong Kwon
    • Smart Media Journal
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    • v.9 no.4
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    • pp.162-169
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    • 2020
  • Design is a key factor that determines the competitiveness of products in the textile and fashion industry. It is very important to measure the similarity of the proposed design in order to prevent unauthorized copying and to confirm the originality. In this study, a deep learning technique was used to quantify features from images of textile designs, and similarity was measured using Spearman correlation coefficients. To verify that similar samples were actually detected, 300 images were randomly rotated and color changed. The results of Top-3 and Top-5 in the order of similarity value were measured to see if samples that rotated or changed color were detected. As a result, the VGG-16 model recorded significantly higher performance than did AlexNet. The performance of the VGG-16 model was the highest at 64% and 73.67% in the Top-3 and Top-5, where similarity results were high in the case of the rotated image. appear. In the case of color change, the highest in Top-3 and Top-5 at 86.33% and 90%, respectively.