• 제목/요약/키워드: (In)consistency p-measure

검색결과 85건 처리시간 0.02초

한국판 유아용 실행기능 척도(BRIEF-P)의 타당화를 위한 예비연구 (A Preliminary Study on Validity of Korean Behavior Rating Inventory of Executive Function-Preschool Version(BRIEF-P))

  • 권연희
    • 수산해양교육연구
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    • 제29권2호
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    • pp.436-446
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    • 2017
  • This study was performed to verify the validity and utility of the Korean Behavior Rating Inventory of Executive Function-Preschool Version(BRIEF-P). The BRIEF-P is one of the most used instruments to measure Executive Function(EF) and a teacher-rating assessment method designed to measure the executive function of preschoolers(age 2-5). A total of 200 preschoolers(104 boys, 96 girls; recruited aged 3 to 5years) participated. Confirmatory factor analysis was carried out to evaluate the model structure. Correlation analysis was done to verify the concurrent validity. In the results, the model fit indexes were good with the five BRIEF-P subscales (that is, inhibit, shift, emotional control, working memory, plan/organize). The internal consistency of the BRIEF-P five subscales were supported. As a results, the Korean Behavior Rating Inventory of Executive Function-Preschool Version(BRIEF-P) was confirmed to be a reliable and valid assessment tool to measure executive function in preschoolers.

혼합자료에서 독립성 검정에 의한 연관성 측정 (A Unified Measure of Association for Complex Data Obtained from Independence Tests)

  • 이승천;허문열
    • 응용통계연구
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    • 제16권1호
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    • pp.151-167
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    • 2003
  • 두 확률변수의 연관성을 측정하는 측도는 많이 있으나, 이러한 측도는 같은 유형인 변수들 간의 관계를 측정하기 위한 것으로 여러 가지 유형의 변수들이 혼재되어 있는 혼합자료에서 사용하기는 곤란하다 본 논문에서는 두 확률변수의 독립성 검정을 통해 구한 p-값으로 혼합자료에서 사용될 수 있는 새로운 연관성 측도를 구하였으며, 이렇게 구하여진 연관성 측도가 혼합자료에서 변수들 간의 연관성을 비교하는데 유용하게 사용될 수 있음을 보였다.

혼합자료에서 독립성검정에 의한 연관성 측정 (A unified measure of association for complex data obtained from independence tests)

  • 이승천;허문열
    • 응용통계연구
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    • 제34권4호
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    • pp.523-536
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    • 2021
  • 두 확률변수의 연관성을 측정하는 측도는 많이 있으나, 이러한 측도는 같은 유형인 변수들 간의 관계를 측정하기 위한 것으로 여러 가지 유형의 변수들이 혼재되어 있는 혼합자료에서 사용하기는 곤란하다. 본 논문에서는 두 확률변수의 독립성 검정을 통해 구한 p-값으로 혼합자료에서 사용될 수 있는 새로운 연관성 측도를 구하였으며, 이렇게 구하여 진 연관성 측도가 혼합자료에서 변수들 간의 연관성을 비교하는데 유용하게 사용될 수 있음을 보였다.

점탄성유체의 점성에 관한 실험적 연구 (An experimental study on the viscosity of visco-elastic fluids)

  • 김춘식;이영호
    • Journal of Advanced Marine Engineering and Technology
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    • 제6권2호
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    • pp.21-41
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    • 1982
  • Viscosity, especially characteristic among various properties of visco-elastic fluids such as high polymer solutions, is affected mainly by temperature and concentration. Hence, it is important for fluid engineering to express, by some equations, how the fluid characteristics vary with the change of temperature and concentration and to analyze them to obtain consistent viscous characteristics. High polymer solutions, synthetic products of modern chemical industry, suggest many interesting investigations because they are typical visco-elastic materials. Experimentation was made to derive some useful fluid characteristic equations of SEPARAN-NP10 (polyacylamide) expressed by n (flow behavior index) and K' (consistency index) when it is given temperature and concentration variation. To measure viscosity, capillary viscometer was adopted and the range of experimentation is 0-2,000 P.P.M. in concentration and 15-55 .deg.C in temperature. The experimental results are summarized as follows: The flow behavior index n 1) has nearly constant results irrespective of temperature variation at same conentration and the results are shown in (Table. 4-4-3) 2) has following equation, regardless of temperature, for the variation of concentration. n=-1.0765*10$^{-4}$ P+0.9915 (P:P.P.M.) The consistency index K' 1) has different results for the variation of temperature at same concentration and the results are given in (Table.4-7-2) 2) has following equation for the variation of concentration at same temperature. log 10$^{4}$K' =6.4785*10$^{-4}$ P-1.0529 (P:P.P.M)

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수술실 간호사의 직무 만족도 측정 도구 개발 연구 (Development and Validation of an Instrument to Measure the Job Satisfaction of Perioperative Nurses)

  • 윤계숙;박성애
    • 임상간호연구
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    • 제15권1호
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    • pp.93-106
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    • 2009
  • Purpose: The purpose of this study was to develop a valid and reliable instrument to explore and measure job satisfaction as perceived by perioperative nurses, specifically from the perspective of contemporary perioperative nursing in Korea. Method: Items (69) were developed from the responses to two open-ended questions by 168 perioperative nurses in one teaching hospital; (a) reasons that make work enjoyable, (b) reasons that make work unpleasant. Finally 55 items were selected, excluding items with lower correlation with the total scale. The instrument was completed by 885 perioperative nurses from 89 different hospitals nationwide who were attending the annual conference of the Korean Association Operating Room Nurses (KAORN), yielding a response rate of 95.6%. Results: Ten factors were extracted by factor analysis, which explained 60.0% of the total variance; Reliability and internal consistency were established (Cronbach's alpha=.95). A smaller sample of 39 perioperative nurses completed the instrument on two occasions, with a 2-week interval between. Mean scores were computed and two sets of scores were analyzed by Weighted Kappa (W-Kappa=0.680, p=.029). Conclusion: This instrument is a concise, highly practical and flexible tool, which can be used for the perioperative nurse in a wide range of hospital settings.

두개하악장애 환자의 하악운동에 관한 연구 (A STUDY ON THE MANDIBULAR MOVEMENTS OF TMD PATIENTS)

  • 허성주;김광남;장익태
    • 대한치과보철학회지
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    • 제32권1호
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    • pp.103-119
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    • 1994
  • The purpose of this study was to evaluate the mandibular movements of TMD patients comparing to normal persons. Sirognathograph was used to measure five parameters of mandibular movements of twenty normal persons and eight TMD patients. Five parameters were (1) Maximum opening during maximum opening and closing, (2) Mean velocity during maximum opening and closing, (3) Maximum opening during unilateral chewing, (4) Mean velocity during unilateral chewing, (5) Consistency of mandibular movement during unilateral chewing. Based on above results, new Mandibular Movement Index(M.M.I.) was formulated and compared to Helkimo's Clinical Dysfunction Index by measuring two indices before treatment and 2 weeks, 4 weeks, 6 weeks, 8 weeks after treatment. The conclusions were as follows: 1, The amounts of maximum opening and mean velocity during maximum opening and closing of TMD patients were less than those of normal persons(p<0.01). 2. The amounts of maximum opening and mean velocity during unilateral chewing of TMD patients were less than those of normal persons(p<0.05) (P<0.01). 3. Although TMD patients showed limited mandibular movements during unilateral chewing, the consistency of mandibular movements was better than that of normal persons(p<0.05). 4. Both mandibular movement index and Helkimo's Clinical Dysfunction Index, were useful in diagnosing TMD patients.

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초등학교 저학년 학생의 음주예방행위 예측변수 측정도구 개발 - Ajzen의 계획적 행위이론 기반 - (Development of a Scale for Alcohol Drinking Prevention Behavior in Early Elementary School Based on Ajzen's Theory of Planned Behavior)

  • 김윤경;이정미;강서영
    • 대한간호학회지
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    • 제50권2호
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    • pp.210-227
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    • 2020
  • Purpose: This study aimed to develop a scale to measure variables related to alcohol drinking prevention behavior in early elementary school, based on the theory of planned behavior. Methods: A scale was developed to measure variables related to alcohol drinking prevention behavior. Initial items for direct evaluation were constructed through a literature review, and those for belief-based indirect measure were generated through interviews with 30 second- and third-grade elementary school students. The collected data from 286 third-grade elementary school students were then subjected to item analysis, exploratory and confirmative factor analysis, criterion-related validity testing, and internal consistency assessment. Results: The final scale consisted of 35 items. Intention, attitudes, subjective norms, and perceived behavioral control explained 82.7% of the variance; behavioral beliefs, normative beliefs, and control beliefs explained 65.6% of the variance; and evaluation of outcome, motivation to comply, and power of control beliefs explained 72.8% of the variance. The confirmatory factor analysis indicated that the theoretical models had a satisfactory goodness of fit. Criterion-related validity was confirmed between the direct evaluation variables and the indirect measure variables (attitudes r=.64, p<.001; subjective norms r=.39, p<.001; perceived behavioral control r=.62, p<.001). Cronbach's α was .89 for the direct evaluation variables and .93 for the indirect measure variables. Conclusion: The scale developed in this study is valid and reliable. It could be used to measure and explain variables related to alcohol drinking prevention behavior in early elementary school.

공정능력지수 $C_p$에 대한 효율적인 가설검정 (Better Statistical Test for Process Capability Index $C_p$)

  • 조중재;임수덕
    • 품질경영학회지
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    • 제34권3호
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    • pp.66-72
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    • 2006
  • The process capability indices are widely used to measure the capability of the process to manufacture items within the specified tolerance. Most evaluations on process capability indices focus on point estimates, which may result in unreliable assessments of process performance. The index $C_p$ has been widely used in various industries to assess process performance. In this paper, we propose new testing procedure on assessing $C_p$ index for practitioners to use in determining whether a given process is capable. The provided approach is easy to use and the decision making is more reliable. Whether a process is clearly normal or nonnormal, our bootstrap testing procedure could be applied effectively without the complexity of calculation. A numerical result based on the proposed approach is illustrated.

어머니의 자녀양육행동이 아동행동문제에 미치는 영향 (The Relationships between Mother's Child caring Behavior and Child behavioral Problems)

  • 문영숙;한진숙
    • 부모자녀건강학회지
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    • 제5권2호
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    • pp.161-176
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    • 2002
  • Among the causes of childhood behavioral problems - that is, physiological, psychological, and environmental factors -, the common element of non-organic psychological and environmental factors is influences from the parents. Roles of mother who does the biggest emotional exchange with the child after birth may have substantial association with the childhood behavioral problems. In this connection, the present explanatory study was conducted for the purpose of understanding the causal structural relationship in which mother's child caring behaviors affect child behavioral problems. The data collection period was July 2 - 7, 2001. The subject was 4th, 5th, 6th graders' mothers in 4 elementary schools located in Daejoen city and 299 surveys were used in the analysis. As for the tools used in this study to assess the mother's child caring Behavior Scale by Park, Seong-Yeon and Yi, Sook (1990) was used to measure the mother's behaviors. The child behavioral problems were measured with the Korean-Child Behavior Checklist (K-CBCL), standardized into the Korean version by O, Gyung-Ja, Yi, Hye-Ryon, Hong, Gang-Eui, and Ha, Eun-Hye. For the data processing, the frequency and the percentage were calculated, and the analyses of variance, correlation were carried out. The result of this study is summarized as follows: First, the examination of the effect of mother's general characteristics on the mother's caring behavior shows that significant differences are made by the active participation (p=0.020) in the occupation, affection(p=0.000), authority control(p=0.013), achievement(p=0.030), active participation(p=0.032) in the education level, consistency regulation(p=0.007) in the religion. Second, the examination of the effect of mother's caring behaviors on the child behavioral problems shows that significant differences are made by some child behavioral problems in the affection, achievement, consistency regulation, authority control, over protection caring behaviors. Third, as for the correlation between mother's child caring behavior and child behavioral problems, a significant correlation is revealed between the negative child caring behavior and child behavioral problems.

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