• Title/Summary/Keyword: Pearson's r

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Relationship of motor ability evaluation by using MAS and each items of MAS in stroke patient (Stroke 환자에 있어서 MAS(Motor Assessment Scale)를 이용한 운동 능력평가와 각각의 평가 항목과의 상관관계)

  • Kim, Kwang-Soo
    • Journal of Korean Physical Therapy Science
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    • v.4 no.4
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    • pp.519-528
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    • 1997
  • The purpose of this research were to evaluate the overall capacity of activity in hemiplegic patients caused by stroke, to learn the relationship of the overall capacity of activity with 8 out of 9 subtest of the Motor Assessment Scale (MAS) excluding general tonus subtest, and to use in creation of more efficient rehabilitation program by using Motor Assessment Scale (MAS). Twenty-four stroke patients (14 men and 10 women) were the subjects in this study. Their average age was 59.5 and they received average of 17.88 month of therapy. Collected data analysis was completed by using Statistic Analysis System (SAS). The results were as follows: 1) There was no difference in capacity of activity between right hemiplegia and left hemiplegia. 2) There was no difference in capacity of activity compared therapeutic period and age. 3) In comparing the relationship of the each subtest with the overall capacity of activity, upper arm function showed the highest relation (pearson's r = 0.914), and balance sitting (pearson's r= 0.812) and supine to sitting overside of bed (pearson'sr = 0.746) also showed large relationship. 4) Hand movement (pearson's r = -0.45) and advanced hand activity (pearson's r = -0.401) revealed relationship of general tonus with each subtest. 5) Supine to sitting over side of bed (pearson's r = 0.74), balanced sitting(pearson's r = 0.523), and sitting to standing (pearson's r = 0.723) showed large relationship with walking.

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Identifying Spatial Distribution Pattern of Water Quality in Masan Bay Using Spatial Autocorrelation Index and Pearson's r (공간자기상관 지수와 Pearson 상관계수를 이용한 마산만 수질의 공간분포 패턴 규명)

  • Choi, Hyun-Woo;Park, Jae-Moon;Kim, Hyun-Wook;Kim, Young-Ok
    • Ocean and Polar Research
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    • v.29 no.4
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    • pp.391-400
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    • 2007
  • To identify the spatial distribution pattern of water quality in Masan Bay, Pearson's correlation as a common statistic method and Moran's I as a spatial autocorrelation statistics were applied to the hydrological data seasonally collected from Masan Bay for two years ($2004{\sim}2005$). Spatial distribution of salinity, DO and silicate among the hydrological parameters clustered strongly while chlorophyll a distribution displayed a weak clustering. When the similarity matrix of Moran's I was compared with correlation matrix of Pearson's r, only the relationships of temperature vs. salinity, temperature vs. silicate and silicate vs. total inorganic nitrogen showed significant correlation and similarity of spatial clustered pattern. Considering Pearson's correlation and the spatial autocorrelation results, water quality distribution patterns of Masan Bay were conceptually simplified into four types. Based on the simplified types, Moran's I and Pearson's r were compared respectively with spatial distribution maps on salinity and silicate with a strong clustered pattern, and with chlorophyll a having no clustered pattern. According to these test results, spatial distribution of the water quality in Masan Bay could be summed up in four patterns. This summation should be developed as spatial index to be linked with pollutant and ecological indicators for coastal health assessment.

Application of Bivariate Spatial Association for the Quantitative Marine Environment Pattern Analysis (정량적인 해양환경패턴 분석을 위한 이변량 공간연관성 적용)

  • Hwang, Hyo-Jung;Choi, Hyun-Woo;Kim, Tea-Rim
    • Journal of the Korean Association of Geographic Information Studies
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    • v.11 no.1
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    • pp.155-166
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    • 2008
  • The quantitative bivariate spatial pattern analysis was applied for the water quality and nutrients data of Masan Bay, and for this analysis Pearson's r as aspatial correlation measurement, Moran's I as spatial association measurement and L index as integration of aspatial and spatial measurement methods were used. To understand the aspatial and spatial characteristics implicated in L index, Pearson's r as well as Moran's I were classified into 3 types respectively, and Pearson's r and Moran's I were combined with 9 types, and also quantile of L index value was used for each of those 9 types. Finally, these types were defined as 5 groups having not overlapped L index range. According to the application result of L index groups, bivariate water quality and nutrients showed no aspatial correlation regardless of spatial association in February and July, but they showed aspatial correlation having clustered spatial pattern in May and November. The result of this study providing the guideline for the interpretation of aspatial correlation and spatial association using L index is expected to be helpful for the marine environment pattern analysis using quantitative index for further study.

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FUZZY ERROR MATRIX IN CLSSIFICATION PROBLEMS

  • Kannan, S.R.;Ramathilagam, S.R.
    • Journal of applied mathematics & informatics
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    • v.26 no.5_6
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    • pp.861-876
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    • 2008
  • This paper concerns a new method called Fuzzy Supervised Method for error matrix, the method has developed based on Adoptive Neuro- Fuzzy Inference Systems(ANFIS). For the performance point of view initially the new method tested with trial data and then this paper applies the proposed method with real world problems. So that this paper generated 1000 random error matrices in programming language [R] and then it tests the new proposed method for the error matrices. The results of Fuzzy Supervised Method given in terms of Kappa Index and Congalton Accuracy Indexes, and performance of Fuzzy Supervised Method has evaluated by using Pearson's test.

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The Correlation of the Pressure of Biofeedback Unit and Lumbopelvic Motion During Straight Leg Raising in Healthy Subjects (정상인에서 수동적인 뻗은다리올림 시 생체되먹임 장치의 압력과 허리골반 움직임의 상관관계)

  • Jung, Do-young
    • Physical Therapy Korea
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    • v.25 no.3
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    • pp.12-18
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    • 2018
  • Background: Passive straight leg raising (PSLR) is the common clinical test to measure of hamstring muscle length. Hip flexion angle contributes to change the lumbopelvic rotation during PSLR. Pressure biofeedback unit (PBU) is commonly used to detect lumbopelvic movement during lower limb movements. Thus, there may be the relationship between pressure of PBU and lumbopelvic motion during PSLR. Objects: The objective of this study was to determine the relationship between pressure of PBU and lumbopelvic motion during PSLR. Methods: Thirty two subjects participated in this study. A three-dimensional motion analysis system were used to measure the lumbopelvic angle during PSLR, while recording the pressure of PBU according to angle of PSLR by 10 degree increments. Pearson product moment correlations and linear regression analysis were used to describe the relationship between variables. Results: The results showed that there was a significant relationship between the lumbopelvic and angle of PSLR (Pearson's r=.83, p<.05), between the pressure of PBU and angle of PSLR (Pearson's r=.75, p<.05), and between lumbopelvic motion and pressure of PUB (Pearson's r=.83, p<.05). Linear regression equation using lumbopevic angle as an independent factor was as follows: Pressure of PBU = 47.35 + (2.55 ${\times}$ angle of lumbopelvic motion) ($R^2=.69$, p<.05). Conclusion: Results of the present study indicate that pressure of PBU can be used to indirectly detect the amounts of lumbobevic motion during muscle length test or stretching of hamstring.

The Effects of Clinical Nurse's Emotional Intelligence and Core Self-evaluation on Career Commitment (임상간호사의 정서지능과 핵심자기평가가 경력몰입에 미치는 영향)

  • Cho, Ok-Hee;Yoo, Yang-Sook;Hwang, Kyung-Hye
    • Journal of Digital Convergence
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    • v.16 no.9
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    • pp.269-278
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    • 2018
  • The purpose of this study is to investigate the effects of clinical nurse's emotional intelligence (EI) and core self-evaluation (CSE) on career commitment. Subjects were 462 clinical nurses at two general hospitals in Seoul, and survey was conducted from May to July, 2017. Data were analyzed by t-test, ANOVA, Pearson's correlation coefficients and stepwise multiple regression analysis. The results showed that career commitment was correlated with EI or CSE (r=.28, p<.001; r=.34, p<.001). EI was correlated with CSE (r=.44, p<.001). CSE, spouse status, EI, position, subjective health status, and working department were identified as the factors affecting the clinical nurse's career commitment ($R^2=.21$). To improve career commitment, it is necessary to assess clinical nurse's EI and CSE according to subjective health status, and to be considered marriage, position, and working department in developing a career convergence program.

Validation of the Korean Version of the General Practitioner Assessment of Cognition (K-GPCog) (한국형 실무자용 노인인지기능 사정도구(K-GPCog)의 신뢰도, 타당도 분석)

  • Park, Jee-Won;Kim, Yong-Soon
    • The Korean Journal of Rehabilitation Nursing
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    • v.13 no.1
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    • pp.5-12
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    • 2010
  • Purpose: The purpose of this study was to examine the psychometric properties of the Korean version of the General Practitioner Assessment of Cognition (K-GPCog) scale. Method: The K-GPCog consists of the 2 subscales, patients and caregivers. Using a sample of 412 community-based Korean older adults, internal consistency reliability was estimated using Cronbach's alpha. To evaluate validity of the K-GPCog, correlational analysis was conducted using Pearson r between K-GPCog and the Korean Dementia Screening Questionnaire (KDSQ). Results: Cronbach's alpha coefficients of the K-GPCog patients' and caregivers' subscales .788 and .794 respectively. Pearson's correlation coefficients were r=-.374, r=-.481, and r=-.493, respectively for the subscales of patients and primary caregivers, and total K-GPCog. The degree of diagnostic agreement about the risk for cognitive disorders of older adults showed 11.7% and 11.2% respectively for the K-GPCog and the KDSQ. Conclusion: The findings provided preliminary evidence of the K-GPCog as a useful screening measure for detecting mild cognitive disorders of Korean older adults. The K-GPCog is particularly useful to identify cognitive disorders from primary caregivers when it is difficult to assess the level of cognition of older adults.

Reliability and Validity of the Korean Version of Children Participation Questionnaire (한글판 Children Participation Questionnaire(K-CPQ)의 신뢰도 및 타당도 연구)

  • Ko, You-Jeong;Ko, Su-Jeong;Chae, Soo-Gyuong
    • The Journal of the Korea Contents Association
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    • v.19 no.3
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    • pp.163-170
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    • 2019
  • The purpose of this study was to examine the reliability and validity of the K-CPQ in 299 children with developmental disorder and non-disabled children to prove their level of participation in Korean children with developmental disabilities. In order to verify the reliability of the K-CPQ, Cronbach ${\alpha}$ was calculated and Pearson correlation analysis was used for test-retest reliability test. As a result, the internal consistency(${\alpha}=.81{\sim}.90$) in each area of K-CPQ was relatively high and the Pearson correlation coefficient (r=.807~.843) in the test-retest reliability test was significant in all areas(p<.01). It showed statistically significant difference in all areas(t=2.32~5.18) in comparison with the non-disabled children group in order to verify the discriminant validity of K-CPQ. For the criterion-related validity of the K-CPQ, Pearson correlation analysis of K-SMS and K-SFA shows statistically significant static correlation(r=.817, r=743) showed(p<.01). Through this study, K-CPQ has been confirmed as a reliable and reasonable assessment tool and we expect that diverse research by K-CPQ will provide appropriate interventions for children with disabilities.

Effect of Nursing Job Stress, Resilience on Nursing Performance in Small and Medium-sized Hospitals (중소병원간호사의 업무 스트레스와 회복탄력성이 간호업무성과에 미치는 영향)

  • Soon-Ok Kim
    • Journal of the Korean Applied Science and Technology
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    • v.39 no.6
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    • pp.839-852
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    • 2022
  • This study is a descriptive research study to identify work stress, resilience, nursing performance and influencing factors so that nurses in small and medium-sized hospitals can flexibly cope with rapidly changing medical environments. The subjects of the study were 219 nurses working at four small and medium-sized hospitals located in S region, and the survey was conducted using a structured questionnaire. The collected data were analyzed by using descriptive statistics, t-test, ANOVA, Pearson's correlation analysis and multiple regression analysis. There was a negative correlation between work stress and nursing performance in small and medium-sized hospital nurses (r=-0.150, p<.05), and a positive correlation between work stress and resilience (r=0.160, p<.05). Nursing performance showed a positive correlation with resilience (r=0.351, p<.01). The variable affecting nursing performance was resilience (𝛽=.231, p<.01), and its explanatory power was 17.4% (Adj.R2=0.174, p<.001). Therefore, in order to improve the nursing performance of nurses, it is necessary to increase resilience.

A Research of Workplace Bullying and Burnout on Turnover Intention in Hospital Nurses (병원간호사의 직장 내 괴롭힘, 소진 및 이직의도에 관한 연구)

  • Yeun, Young-Ran
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.12
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    • pp.8343-8349
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    • 2015
  • This study was done to identify the relation among workplace bullying, burnout and turnover intention among nurses. The participants were 270 nurses from four general hospitals. Data were analyzed using descriptive statistics, pearson's correlation analysis, and stepwise multiple regression with the SPSS/PC 18.0 program. Workplace bullying (r=.35, p=.000) and burnout (r=.64, p=.000) had positive correlation with turnover intention. The predictors of turnover intention were person-related workplace bullying, work-related workplace bullying, emotional exhaustion and depersonalization. The results of the study could be used to develop a program for reducing nurses' turnover intention.