• Title/Summary/Keyword: correlation consistency

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Reliability and Validity of Korean Version Northwick Park Neck Pain Questionnaire in Neck Pain Patients (경통 환자들을 위한 한국어판 Northwick Park Neck Pain Questionnaire의 신뢰도와 타당도)

  • Lee, Kwan-Woo;Seo, Hyun-Do;Jung, Kyoung-Sim;Kim, Sang-Hwun;Chung, Yi-Jung
    • Physical Therapy Korea
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    • v.17 no.3
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    • pp.68-76
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    • 2010
  • The purpose of this study was to establish reliability and validity of the Northwick Park Neck Pain Questionnaire (NPQ) translated into Korean for neck pain patients. Sixty-two subjects (35 males, 27 females) with neck pain enrolled in the study. They completed a standardized self-administered questionnaire that included pain intensity, sleeping, sensory at night, duration of symptoms, carrying, reading and watching television, working, social activities, and driving. Reliability was determined by intraclass correlation coefficient (ICC) and Cronbach's alpha by internal consistency. Validity was examined by correlating the NPQ scores to the Visual Analog Scale (VAS) score. Test-retest reliability of the translated versions of the NPQ was good ICC(2,1)=.83 (95%CI=.85~.95). Cronbach's alpha value for NPQ was found to be .87 and this was statistically significant (p<.05). The criterion-related validity coefficients was .75 (p<.01). We concluded that the Korean version NPQ was shown to be a reliable and valid instrument for the assessment of neck pain.

Inter-Rater Reliability of Stroke Rehabilitation Assessment of Movement for Patients With Stroke (뇌졸중 환자 평가를 위한 Stroke Rehabilitation Assessment of Movement의 측정자간 신뢰도)

  • Yun, Sung-Joon;Weon, Jong-Hyuck;Lee, Chung-Hwi
    • Physical Therapy Korea
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    • v.17 no.3
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    • pp.48-58
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    • 2010
  • The aim of this study was performed to determine the inter-rater reliability of the Stroke Rehabilitation Assessment of Movement (STREAM) translated in Korean. This was a new clinical measurement tool for evaluating the recovery of voluntary movement and basic mobility following stroke. A direct-observation reliability study was conducted on 20 patients who had strokes and were in a rehabilitation setting. Subjects were assessed by two physical therapists. The reliability of the STREAM scores was demonstrated by weighted kappa statistics for inter-rater agreement on scores for individual items ranged from .83 to 1.0, intraclass correlation coefficients for total score was .99, and for subscale scores was ranged from .96 to .99. The internal consistency of the STREAM scores was demonstrated by Cronbach alphas of greater than .99 on the subscales and overall. These high levels of reliability support the use of the STREAM translated in Korean instrument for the measurement of motor recovery following stroke.

Adhesion of clay to metal surface; Normal and tangential measurement

  • Basmenj, Amir Khabbazi;Ghafoori, Mohammad;Cheshomi, Akbar;Azandariani, Younes Karami
    • Geomechanics and Engineering
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    • v.10 no.2
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    • pp.125-135
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    • 2016
  • Adhesion in geotechnical engineering is the interaction between cohesive soil and a solid surface which can cause clogging in mechanized tunnelling through clayey formations. Normal piston pull out and modified direct shear tests were performed on clayey soil samples to determine which type of adhesion stress, normal or tangential, could be most effectively measured. Measured values for normal adhesion ranged from 0.9 to 18 kPa. The range of tangential adhesion was 2.4 to 10 kPa. The results indicate normal adhesion results were more accurate than those for the modified direct shear test that measure tangential adhesion. Direct shear test on identical samples did not show any correlation between measured cohesion and normal adhesion values. Normal adhesion values have shown significantly meaningful variation with consistency index and so are compatible with the base of field clogging assessment criteria. But tangential adhesion and cohesion were not compatible with these assessment criteria.

Viscosity and Dynamic Rheological Properties of Job's-tears as a Function of Moisture Content (수분함량에 따른 율무가루의 점도변화 및 동적물성 특성에 관한 연구)

  • Yoon, Won-Byung;Kim, Byung-Yong;Shin, Dong-Hoon
    • Korean Journal of Food Science and Technology
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    • v.29 no.5
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    • pp.932-938
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    • 1997
  • Changes in viscosity and dynamic theological properties of Job's-tears were measured by Bohlin dynamic tester as a function of moisture, and measurement was performed within a linear viscoelastic range. The result of the shear stress vs shear rate of Job's-tears at different moisture contents $(50{\sim}75%)$ was applied to mathematical models and Herschel-Bulkley model showed the highest correlation coefficient. Lower moisture content (55%) produced higher yield stress and consistency index, but lower flow behavior index, whereas higher moisture content showed reverse effects. Job's-tears with $50{\sim}70%$ moisture contents showed a higher storage modulus (G') than loss modulus (G') at all frequencies, showing a higher concentrated polymer characteristics. However, higher moisture content (>75%) showed crossover point between G' and G', and frequency dependency. As the moisture content was increased, the amount of viscoelastic properties such as G', G', complex viscosity decreased during heating, and initial temperature and miximum value of viscoelastic properties shifted to higher temperatures, representing the moisture-dependence of Job's-tears upon theological properties.

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Development of the Transition Shock Scale for Newly Graduated Nurses (신규간호사의 전환충격 측정도구 개발)

  • Kim, Eun-Young;Yeo, Jung Hee;Yi, Kyeong Im
    • Journal of Korean Academy of Nursing
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    • v.47 no.5
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    • pp.589-599
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    • 2017
  • Purpose: The purpose of this study was to develop a scale to assess the transition shock experienced by newly graduated nurses, and test the validity and reliability of the scale. Methods: The initial items were identified through a review of literature and in-depth interviews with nine newly graduated nurses. Content validation of the items was evaluated by five nurse professors and three nurses. Participants were 269 newly graduated nurses who worked at six acute care hospitals in Busan, Ulsan, and Yangsan, South Korea. Data were analyzed using item analysis, exploratory and confirmatory factor analysis, criterion related validity, and internal consistency. Results: The final scale consisted of 18 items and six factors (conflict between theory and practice, overwhelming workload, loss of social support, shrinking relationship with co-workers, confusion in professional nursing values, and incongruity in work and personal life), which explained 71.3% of the total variance. The six subscale model was validated by confirmatory factor analysis. Cronbach's alpha for the total items was. 89. Convergent validity was evaluated by analyzing total correlation with burnout (r=.71, p<.001) and turnover intention (t=5.84, p<.001). Conclusion: This scale can be used in the development of nursing interventions to reduce the transition shock experienced by newly graduated nurses.

Reliability and Validity of the Korean Version of the Copenhagen Psyco-social Questionnaire Scale (한국어판 코펜하겐 사회심리적 업무환경 측정도구의 타당도와 신뢰도)

  • June, Kyung Ja;Choi, Eun Suk
    • Korean Journal of Occupational Health Nursing
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    • v.22 no.1
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    • pp.1-12
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    • 2013
  • Purpose: This study aims to test the validity and criteria-related reliability of the Korean version of the Copenhagen Psyco-social Questionnaire version II (COPSOQ-K) assessing the psychosocial working environment. Methods: The COPSOQ-K was developed through forward-backward translation techniques, and revision based on feedback from focus groups. Survey data were collected from 311 office workers who worked in one workplace. An internal consistency reliability was estimated by Cronbach's ${\alpha}$. The impacts of the COPSOQ-K scales on job satisfaction, self-rated health, stress, sleeping troubles, burnout, and sickness absence were analyzed with multiple regression model or multiple logistic regression model, adjusted age and gender using SAS version 9.3. The Pearson correlation coefficients between the COPSOQ-K scales and Korean job stress and its subdomain were identified. Results: Cronbach's ${\alpha}$ of COPSOQ-K scales was adequate or good (0.66~0.87). The major COPSOQ-K scales predict job satisfaction, self-rated health, stress, sleeping troubles burnout, and sickness absence. The major COPSOQ-K scales were correlated with Korean job stress and its subdomain. Conclusion: The COPSOQ-K scales have satisfactory reliability and criteria-related validity. The COPSOQ-K scales will be useful for the future studies and practices associated with psychosocial working environment.

Development and Evaluation of an Internet Literacy Questionnaire(ILQ) (인터넷 사용자 경험 수준 측정을 위한 질문지 개발과 평가)

  • Kim, Insoo;Kim, Kiwoo;Kim, Gyeung-min;Myung, Rohae
    • Journal of Korean Institute of Industrial Engineers
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    • v.28 no.4
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    • pp.397-406
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    • 2002
  • A study was conducted to develop Internet Literacy Questionnaire(ILQ) to investigate the levels of user's knowledge on Internet literacy. ILQ was found to be reliable (showed an internal consistency) with Cronbach's alpha of 0.93(p-value<0.001) and valid with test-retest correlation of 0.90 (p-value<0.001). ILQ, composed of 21 questions, was developed to test four areas of user's Internet literacy: general experience on Internet, advanced experience on Internet, knowledge on Internet program languages, and Internet application software programs. These four factors represented 69.2% of the knowledge of all areas of Internet literacy. As a result, ILQ could be used to differentiate the levels of user's Internet knowledge as beginners, intermediates, and experts before any Internet application programs are to be developed.

Reliability and Validity of the Korean Version of the Contraceptive Self-efficacy Scale: Focused on Women University Students (한국어판 피임 자기효능감(K-CSE) 도구의 신뢰도와 타당도: 여대생을 중심으로)

  • Kim, Kyeha;Cho, Euna
    • Women's Health Nursing
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    • v.22 no.3
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    • pp.151-161
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    • 2016
  • Purpose: The purpose of this study was to develop and test the validity and reliability of the Korean version of the Contraceptive Self-efficacy (K-CSE) scale. Methods: The K-CSE scale was developed through forward-backward translation methods. Construct and criterion validity and internal consistency reliability were calculated using SPSS/WIN 21.0. Data were collected from 257 women students from two universities in G city, South Korea. Results: The factor structure of the K-CSE scale showed the cumulative variance as 62.9% in the factor analysis. Factor loading of 13 items on four subscales ranged from .47 to .88. Factors were named as 'initiative of contraceptive use', 'sexual assertiveness', 'refusal of sexual intercourse', and 'autonomic sexual behavior'. Criterion validity compared to the Sexual Autonomy Measurement (SAM) showed significant correlation. Cronbach's ${\alpha}$ for the reliability of each subscale were .50~.82 and .76 for the total scale. Conclusion: The findings of this study demonstrate that the K-CSE scale is a satisfactory valid and reliable scale. Therefore, the CSE scale can be useful in measuring contraceptive self-efficacy among women university students in Korea.

The Reliability and Validity of the Korean Version of the Cornell Assessment of Pediatric Delirium (한국어판 Cornell Assessment of Pediatric Delirium 소아 섬망 사정 도구의 검증)

  • Nam, Song Yi;Park, Ki Young;Choi, Su Jung
    • Journal of Korean Clinical Nursing Research
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    • v.26 no.2
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    • pp.254-264
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    • 2020
  • Purpose: This study was to examine the reliability and validity of the Korean version of the Cornell Assessment of Pediatric Delirium (CAPD). Methods: For testing the reliability of the Korean version of the CAPD, this study calculated the internal consistency (Cronbach's α) and the Interrater Correlation Coefficient (ICC) by comparing the independent assessment results of three nurses in Pediatric Intensive Care Unit (PICU). For testing the validity of the Korean version of the CAPD, the assessment result of the Korean version of the CAPD compared with that of the Diagnostic and Statistical Manual of Mental Disorders V (DSM-V). Receiver Operating Characteristics (ROC) analysis was used for measuring sensitivity and specificity. Results: Overall interrater reliability of the Korean version of the CAPD, ICC was .98 (95% CI .96~.99). Cronbach's α was .91 for eight items. The concordance between the Korean version of the CAPD and psychiatrist's diagnosis was 90.0%. When the Korean version of the CAPD has the cut point of 9, sensitivity was 93.8%, and specificity was 75.0%. The area under the curve indicated by the ROC analysis was .88. Conclusion: The Korean version of the CAPD showed good reliability and validity. This tool will be useful for pediatric delirium screening and management in Korean PICU.

The Influence of Weaning Practices on the Eating Habits of Preschool Children (이유실태가 학령 전 아동의 식습관에 미치는 영향)

  • Lee, So-Young;Jeong, Hee-Sun;Joo, Na-Mi
    • Journal of the Korean Dietetic Association
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    • v.14 no.4
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    • pp.325-336
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    • 2008
  • The principal objective of this study was to determine how weaning by mothers of preschool children between the ages of five and seven years influences the children's eating habits and food preferences. The results of this study will help to educate mothers about good weaning practices and facilitate the development of weaning programs by providing basic data on the subject. The results demonstrated significantly positive correlations between children's scores on eating habits and the level of vigorous weaning practices, the consistency of their practice, and the child's reaction to the foods provided (p<0.001). A positive correlation was noted between the frequency of providing solid food and the preference toward the food, with the exception of boiled rice and brightly colored vegetables. Thus, the results of this survey showed that the frequency and variety of solid foods that mothers try to actively provide their young children affect their food preferences and eating habits in general. These conclusions suggest that mothers should be educated about the significance of proper weaning so that their children can develop appropriate eating habits, and that there should be nutritional education for mothers, regarding the best weaning practices.

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