• Title/Summary/Keyword: Pearson's Correlation Coefficient

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Relationships between Perceived Stress, Mental Health, and Social Support in Community Residents (일 도시지역 주민의 스트레스 지각, 정신건강 및 사회적 지지)

  • Kim, Pan-Hee;Kim, Hee-Sook
    • Journal of Korean Public Health Nursing
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    • v.24 no.2
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    • pp.197-210
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    • 2010
  • Purpose: The study investigated the relationships among perceived stress, mental health, and social support in community residents. Method: A self-reporting questionnaire was completed by 302 community residents aged 19-64-years-of-age from October 7 to November 30, 2008. Assessment tools were an The established perceived stress scale, standardized mental health scale, and established social support scale. The data was analyzed by descriptive statistics, t-test, one-way ANOVA, Scheffe's test, and Pearson's correlation coefficient using the SPSS WIN 12.0 program. Result: Significantly negative correlations were evident between perceived stress and social support, and between social support and mental health. But, there was a significantly positive correlation between perceived stress and mental health. Conclusion: It is necessary to develop a strategy to decrease perceived stress, improve mental health, and increase social support for community residents.

The Evaluation of Reliability and Validity for Mibyeong Questionnaire (증상 정도, 기간, 불편정도 및 회복력 기반 미병 설문지의 신뢰도 및 구성 타당도 평가)

  • Jang, Eunsu;Yoon, Ji-Hyeon;Lee, Youngseop
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.21 no.1
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    • pp.13-25
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    • 2017
  • Objectives The purpose of this study was to evaluate the reliability and the validity of Mibyeong Questionnaire (MQ). The subjects enrolled in this study was 165 from July 2015 to Jan. 2016. The surveys were conducted twice with 3 month terms. Methods The Cronbach's ${\alpha}$ analysis for internal reliability, Pearson Correlation Coefficient analysis for test-retest reliability, Factor analysis with varimax rotation for construct validity, Kappa analysis for diagnostic reliability were used. The significant p-value was less than 0.05. Results and Conclusions The result showed that the Cronbach's ${\alpha}$ of MQ was .857-.937 and total was .913. The reliabilities between test and retest for the MQ were .666-.832 (0.416-0.673, in case of including recovery question) in intraclass correlation coefficient (ICC). The Kappa of recovery question in each item was ranged 0.23(80.6% in agreement rate) to .46(87.9% in agreement rate). In test-retest the Kappa value of Mibyeong diagnosis referred by median value was .418(71% in agreement rate). This study revealed that MQ is a reliable and valid questionnaire.

Identification of Unknown Cryptographic Communication Protocol and Packet Analysis Using Machine Learning (머신러닝을 활용한 알려지지 않은 암호통신 프로토콜 식별 및 패킷 분류)

  • Koo, Dongyoung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.32 no.2
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    • pp.193-200
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    • 2022
  • Unknown cryptographic communication protocols may have advantage of guaranteeing personal and data privacy, but when used for malicious purposes, it is almost impossible to identify and respond to using existing network security equipment. In particular, there is a limit to manually analyzing a huge amount of traffic in real time. Therefore, in this paper, we attempt to identify packets of unknown cryptographic communication protocols and separate fields comprising a packet by using machine learning techniques. Using sequential patterns analysis, hierarchical clustering, and Pearson's correlation coefficient, we found that the structure of packets can be automatically analyzed even for an unknown cryptographic communication protocol.

Relations of Rural Elderly People's Self-Esteem and Social Support to their Quality of Life (농촌 노인의 자아존중감, 사회적 지지와 삶의 질과의 관계)

  • Sohn, Shin-Young
    • Research in Community and Public Health Nursing
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    • v.17 no.2
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    • pp.176-185
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    • 2006
  • Purpose: This study was to identify the relations of rural elderly people' self-esteem and social support to their qualify of life. Methods: Data were collected from 228 rural elderly. The instruments used in this study were the self-esteem scale developed by Rogenberg(1965), the MOS-SSS(1991) and the qualify of life scale by Choi(1986). Data were analyzed by SPSS 12.0 using t-test. ANOVA, Pearson correlation coefficient and stepwise multiple regression. Results: Self-esteem and social support were in a positive correlation with each other(r=.467, p=.000). Social support and quality of life were in a positive correlation with each other(r=.512, p=.000). Self-esteem and quality of life were in a positive correlation with each other(r=.555, p=.000). The significant predictors of quality of life were self esteem, social support, and economic status, and the three factors accounted for 42.5% of variances in rural elderly people's quality of life. Conclusion: These results suggest that self-esteem, social support, economic status can be important factors for the qualify of life in the rural elderly. It proposes the basis for program development to improve rural elderly people's qualify of life.

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Relation of the Depression and Attention Concentration by Smoking Status among Adolescents (청소년의 흡연과 우울 및 주의집중력과의 관계)

  • Byeon, Young-Soon;Lee, Hea-Shoon
    • Korean Journal of Adult Nursing
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    • v.20 no.2
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    • pp.231-238
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    • 2008
  • Purpose: The purpose of this study was to investigate the relationship between depression and attention concentration by smoking status among adolescents. Methods: Depression was measured by Radloff's Center for Epidemiological studies Depression(1977) and modified by Korean(Chon & Lee, 1992), attention concentration measured by Nideffer's Test of Attention and Interpersonal Style(1976) and modified by Korean adolescents(Seo, 2004; Shin, 1988). The collected data was analyzed by the $Mean{\pm}SD$, ${\chi}^2$-test, ANOVA, Scheffe and Pearson correlation coefficient(SPSS 13.0). Results: 1. The smoking level appeared to heavy smoking group 31(22%), light smoking group 15(11%), non smoking group 92(67%). 2. The smoking level was different between the time to begin smoking, period of smoking and smoking amount/day. 3. Smoking group's depression was higher than those of the non smoking group and attention concentration was lower than those of the non smoking group. 4. The smoking amount had a significant positive correlation with depression and a significant negative correlation with attention concentration. Depression had a significant negative correlation with attention concentration. Conclusion: The result of this study offered the basis data for smoking prevention and treatment of adolescents.

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The relationship among academic achievement, clinical competence, and confidence in clinical performance of nursing students (간호학생의 학업성취도와 임상수행능력 및 임상수행자신감의 관련성)

  • Kim, Hye-Won;Kim, Myo-Gyeong
    • The Journal of Korean Academic Society of Nursing Education
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    • v.27 no.1
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    • pp.49-58
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    • 2021
  • Purpose: The purpose of this study was to determine relationships between academic achievement, clinical competence, and confidence in the clinical performance of nursing students, and to identify factors that influence them. Methods: This was a descriptive correlation study. Data were collected from 118 nursing students at a nursing college in Seoul. One-way variance analysis, Pearson's correlation coefficient, and multiple linear regression analysis were used to examine relationships between academic achievement, clinical competence, and confidence in clinical performance. Results: Clinical competence was related to academic achievement in students' previous semester and to students' academic scores in a fundamental of nursing course. Clinical competence showed a weak positive correlation with academic achievement in students' previous semester and academic scores in a fundamental of nursing course in both evaluations by the professor and students' self-evaluations. However, confidence in clinical performance had no significant correlation with academic achievement. The factor affecting the clinical competence was academic scores in a fundamental of nursing course, and factors affecting confidence in clinical performance were health status, personality, major suitability, and class satisfaction in a fundamental of nursing skills course. Conclusion: These findings indicate that students with high academic achievement have better clinical performance, but confidence in clinical performance is not related to academic achievement.

Canonical correlation between organizational characteristics and barrier to medication error reporting of nurses (간호사가 인식한 조직의 특성과 투약오류보고장애요인간의 정준상관관계)

  • Kim, Min-Jeong;Kim, Myoung Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.2
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    • pp.979-988
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    • 2014
  • Purpose: The purpose of this study was to examine the relationship between nurse's perception of organizational characteristics including safety climate and work environment and barrier to medication error reporting. Methods: We surveyed 334 nurses from 7 hospitals. An assessment survey was consisted of modified safety climate scale, practice environment scale and barrier to medication error reporting. The data were collected from September 2012. Descriptive statistics, Pearson correlation coefficient, canonical correlation were used. Results: Organizational characteristics were related to barrier to medication error reporting with three significant canonical variables. The first canonical correlation coefficient was .50(Wilks' ${\lambda}$=0.61, df=32, p<.001), that of the second was .35(Wilks' ${\lambda}$=0.81, df=21, p<.001) and that of the third was .22(Wilks' ${\lambda}$=0.93, df=12, p=.018). The first variate indicated higher perception of safety climate variables and work environment variables were related lower barrier to medication error reporting variables except fear for error reporting. The second variate showed higher perception of 'safety climate between healthcare provider' and higher 'nurse participation in hospital affairs' and 'staffing and resource adequacy' were related to lower 'fear' and 'administrative response' in barrier to medication error reporting variables. Conclusion: Strategies for barrier to medication error reporting and improvement of organizational characteristics including safety climate and work environment should be implemented.

Cultural Competence, Health Promotion Behavior, and Quality of Life in Married Immigrant Women in Korea (결혼이주 여성의 문화적 역량, 건강증진 생활양식 및 삶의 질)

  • Chung, Myung Sill
    • The Journal of Korean Academic Society of Nursing Education
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    • v.21 no.1
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    • pp.36-45
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    • 2015
  • Purpose: The purpose of this study was to identify the correlation coefficient cultural competence, health promotion behavior, and quality of life of married immigrant women in Korea. Methods: The participants included 88 married immigrant women who applied to educational programs for medical tour coordinators and agreed to participate in the study. Data were collected through self-report questionnaires that were constructed to include scales to measure cultural competence, health promotion behavior, and quality of life. Data were analyzed using ANOVA, Pearson correlation coefficients with SPSS/WIN 19.0. Results: Both cultural competence and health promotion behavior were different according to the husband's occupation. There was a positive correlation between cultural competence and quality of life, a positive correlation between health promotion behavior and quality of life, and a positive correlation between health promotion behavior and cultural competence. Conclusion: From a long-term point of view, various programs for married immigrant women should greatly strengthen their cultural competence and help them become genuine members of our society and live an independent life. Developing detailed and active programs for nursing intervention to constitute a healthy lifestyle and improve the quality of life is recommended.

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.

Relationship among Pain, Depression and Activities of Daily Living in Nursing Home Residents (노인요양시설 입소 노인의 통증, 우울 및 일상생활활동과의 관련성)

  • Lee, Young-Mi
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.11
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    • pp.6728-6738
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    • 2014
  • This study investigated the relationship among pain, depression and activities of daily living in nursing home residents. Data was collected through a structured questionnaire survey of residents at 4 nursing homes in S city. The measures were the Numeric Rating Scale (NRS) and Discomfort Scale-Dementia of the Alzheimer Type (DS-DAT) for self-reported and observational pain, Geriatric Depression Scale Short Form-Korea Version (GDSSF-K) for depression, Barthel Activities of Daily Living (BADL) scale for ADL. The data were analyzed using the Pearson's correlation coefficient and hierarchical multiple regression using the SPSS/PC 20.0 program. The analysis results of the relationship of pain, depression and activities of daily living, both DS-DAT and NRS showed a significant negative correlation with the activities of daily living and a positive correlation with depression. Finally, gender, arthritis, depression, and activities of daily living explained 28.1% of the variance in pain using NRS, whereas depression and activities of daily living explained 21.5% of the variance in pain using DS-DAT. The results highlight the need to develop a pain management program that reduces the depression and promotes the activities of daily living in nursing home residents; hence, a differentiated approach as non-pharmacological interventions is required.