• Journal of the Korea Institute of Building Construction
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• v.13 no.5
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• pp.474-481
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• 2013

The success of a construction project hinges on the effective and efficient management of human resources. The stress of human resources is directly related with work performance, and as such, should be managed to improve work performance. This study examined the correlation between job stress and job satisfaction among building construction project managers. A questionnaire to measure work performance was created by referring to the Korean Occupational Stress Questionnaire Short Form developed by the Korean Occupational Safety & Health Agency, as well as a previous study. The mean job satisfaction score of field managers was 3.6, which suggests that they are generally satisfied in their current job environment. A Pearson's correlation analysis showed that the field managers that were satisfied with their job had less job stress. These results could be used for the effective management of construction site managers and to improve their job performance in the field.

• Transactions of Materials Processing
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• v.20 no.2
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• pp.124-131
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• 2011

A flexible stretch forming process is useful for small quantity batch production because various shape changes of the flexible die can be achieved conveniently. In this study, the design variables, namely, the punch size, curvature radius and elastic pad thickness, were quantitatively evaluated to understand their influence on sheet formability using statistical methods such as the correlation and regression analyses. Forming simulations were designed and conducted by a three-way factorial design to obtain numerical values of a shape error. Linear relationships between the design variables and the shape error resulted from the Pearson correlation analysis. Subsequently, a regression analysis was also conducted between the design variables and the shape error. A regression equation was derived and used in the flexible die design stage to estimate the shape error.

• Journal of The Korean Society of Agricultural Engineers
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• v.55 no.2
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• pp.37-45
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• 2013

The aim of this study was to investigate chemical characteristic of livestock compost in association with livestock manure types (poultry, cattle, swine, and mixed manure). The livestock compost was collected from local nonghyup branches on a si-gun level. Chemical composition (nutrients, heavy metals etc.) of the samples was analyzed and Pearson's correlation analysis was performed. Quality of most compost samples met the standard of fertilizer specifications. Poultry compost contains greater nutrients especially $P_2O$ (p-value<0.01) and $NH_4$-N (p-value<0.05). Meanwhile swine compost has higher concentration in water content (p-value<0.05) and heavy metals (p-value<0.01 for Cd, Cu and Zn). Overall, poultry compost was correlated positively with nutrients while swine compost has positive correlation with water content and heavy metals. We expect that the study results can provide base data for determining compost types and amount for crop production.

• Journal of Families and Better Life
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• v.8 no.2
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• pp.1-13
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• 1990

The purpose of this study were to investigate the socio-demographic variables influencing the communications and the adolescents' self concepts, and to define the correlation between the communications and the adolescents' self concepts. For this purposes, a survey was conducted using questionnaire. The data used in this study included 478 boys and girls in high school living in Kwangju. Statistics used of data analysis were Frequency Distribution, Percentile, Mean, Standard Deviation, F-test, Scheffe-Test, Pearson's Correlation, and Step-wise Multiple Regression. The main results were as follows; 1) The communication between fathers and their adolescents children differed significantly by education level , occupation, and income of their fathers. 2) the self concept differed significantly by sex of children, educational level, occupation, and income of their fathers. 3) The correlation between self concept and communication among fathers and their adolescents children marked positive correlation except Self-Criticism. 4) The mose influencial variables on communication between faters and their adolescents children were the Family Self Score.

• Korean Journal of Child Studies
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• v.26 no.1
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• pp.247-259
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• 2005

The present study researched Sternberg's(1997) definition of Thinking Style as interactive and reciprocal mental self-government and explored its relationship to creativity in preservice kindergarten teachers. The Thinking Style Inventory(Yoon, 1998) and the Creativity Test(You, 1996) were administered to 210 subjects. Data were analyzed by Pearson's correlation and multiple regression analysis using the SPSS/WIN 10.0 program. Thinking style profiles of preservice kindergarten teachers were confirmed by a trilateral correlation among legislative, executive, and judicial functions and a positive correlation among monarchic, hierarchic, oligarchic, and anarchic forms. There was a negative bilateral correlation between liberal and conservative tendencies. All sub areas of thinking styles were related to the creativity of preservice kindergarten teachers.

• Asian Oncology Nursing
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• v.9 no.1
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• pp.23-30
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• 2009

Purpose: This study was to identify the relationship between mental adjustment to cancer and anxiety. Method: This study used a cross-sectional descriptive design. A total of 124 ambulatory cancer patients completed the Mental Adjustment to Cancer (MAC) scale and Hospital Anxiety and Depression Scale (HADS). Data were analyzed using descriptive statistics, t-test, ANOVA and Pearson correlation. Results: There was a significantly negative correlation between anxiety and fighting spirit which was adaptive adjustment to cancer (r=-0.29, p<0.001). However, anxiety had significantly positive correlation with helplessness/hopelessness (r=0.38, p<0.001), anxious preoccupation (r=0.55, p< 0.001), and fatalism (r=0.22, p<0.05) to cancer. Conclusion: Cancer patients' mental adjustment is correlated with the degree of the psychosocial distress. Anxious preoccupation and helplessness/hopelessness are the most maladaptive adjustments whereas fighting spirit is one of the most adaptive adjustment to cancer.

• Journal of Korean Academy of Nursing
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• v.7 no.1
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• pp.112-120
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• 1977

This study attempts to predict nurses'clinical performance from entrance examination of university and college achievements after graduation. This is based upon a survey study, 49 nurses in Yon Sei Medical Center after graduation of college of nursing. Correlation of college achievements, clinical performance and variables of nurses'clinical performance are produced using Pearson's Product moment correlation coefficient significance of correlation tested by T- test. The result of the study were as follows; 1. Clinical performance of the college achievements is the best efficient variables in predicting the nurses'clinical performance after graduation and next theory scholastic total achievements and entrance examination the last. 2. There are significant correlation among nurses'clinical performance rating variables as nursing ethics, nursing skills, achievements, attitude, the state of health.

• International Journal of Internet, Broadcasting and Communication
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• v.10 no.3
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• pp.65-72
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• 2018

The purpose of this study was to assess the intra-tester and inter-tester reliability and validity of elbow flexion range of motion using a smart phone used by the general public. Thirty-one general people participated in this study. The range of motion in active elbow flexion was measured with a goniometer and smart phone over two times by two observers. The intra-taster and inter-tester reliability were evaluated using the intraclass correlation coefficient(ICC). The validity was measured by Pearson's correlation coefficient. The intra-observer reliability was good in all measured items ICC>0.900. The inter-observer reliability was high with ICC>0.806. All correlation coefficients of android app and goniometer were greater than 0.868 and showed a significant positive correlation (p<0.01). The range of motion measurement with a smart phone showed acceptable reliability. Therefore, using a smartphone to measure the range of motion of the elbow joint could provide convenience and economic benefits.

• IE interfaces
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• v.14 no.1
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• pp.79-83
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• 2001

In this paper, we propose a simple method to reduce categorical variables into smaller, but significant numbers, and also demonstrate how the proposed method can be applied to the problem of reduction that empirical research often faces in the course of data processing. For the purpose, we introduce a concept of pseudo-correlation coefficient to make it possible to use factor analysis (FA) as a tool for reducing variables. The main idea of the concept is to deal with the measures of association of categorical variables in the sense of the concept of Pearson's correlation coefficient in order to meet the input requirement of FA. Upon examination of existing measures that could play as pseudo-correlation coefficients, Cramer's V coefficient is selected for the best result among them. To show the detailed procedure of the proposed method, a specific demonstration with the data from 329 R&D projects conducted in 18 private laboratories in electric and electronics industry is presented.

• Korean Journal of Human Ecology
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• v.21 no.2
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• pp.257-267
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• 2012

The purpose of this study was to observe work-related emotional consequences in call center employees. The data were collected from 434 employees in 3 call centers by way of a self-administered questionnaire. Frequencies, Cronbach's alpha, T-test, one-way ANOVA, Pearson's correlation analysis, and multiple regression analyses were conducted by SPSS Win 18.0. The results of this study were as follows: first, job burnout proved to be significant, and demonstrated a positively correlation to surface acting and negatively correlation to deep acting. Second, altruism proved to be significant and demonstrated a positive correlation to deep acting, while also demonstrating a negatively correlation to both sex and surface acting. Third, conscientiousness proved to be significant and demonstrated a positive correlation to both age and deep acting, as well as a negatively correlation to surface acting. Finally, work-family conflict proved to be significant and demonstrated a positive correlation to both sex and workload in terms of hours per day.