• 제목/요약/키워드: internal consistency

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Development, Reliability and Factor Structure of a Korean Perceived Restorativeness Scale Using Forest Users

  • Shin, Won Sop;Yeoun, Poung Sik
    • 한국산림과학회지
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    • 제97권2호
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    • pp.152-155
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    • 2008
  • The Korean version of Perceived Restorativeness Scale was administered to 150 SanEum Recreational Forest visitors to investigate it's psychometric properties. Factor analysis revealed that the scale consists primarily of four factors related to compatibility, preference, being away and coherence. The internal consistency of the scale was positive. Based on these tests, it appears that the scale is a sound measure of restorativeness or psychological health benefits from forest experience.

자원적정지각 척도 개발에 관한 연구 (A Study on Development of the Perceived Adequacy of Resorces Scale)

  • 조영희
    • 가정과삶의질연구
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    • 제9권2호
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    • pp.241-251
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    • 1991
  • The Purpose of this study was the development of scale to measure the Perceived Adequacy of Resources(PAR). A 38-item instrument was analysed with responses form 300 wives dwelling in Seoul. PAR was categorized housing, health, time money, interpersonal, knowledge/skills, community resources, Data were analysed by the method of Pearson's Correlation, Factor Analysis and Multiple Regression. Items were loaded eight resource categories such as time housing, money , health, knowledge, social support, community, psychological relationship. Internal consistency of the scale was high(Cronbach's α=.85) The result proposed PAR constructed 28 items.

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소비자주의에 대한 태도척도 개발에 관한 연구 (The Development of the Test measuring Attitude Towards Consumerism)

  • 서정희;이기춘
    • 가정과삶의질연구
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    • 제4권2호
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    • pp.1-8
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    • 1986
  • This article presents a short objective test for measuring attitudes toward consumerism. The samples are composed of 196 home economics and social studies teachers of middle and high school. The test is shown to have high internal consistency reliability(${\alpha}$=70) and unidimensionality. The test is also shown to have satisfactory content validity and concurrent validity. Extention of the test for stability and predictive validity are discussed.

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어머니의 양육효능감 척도의 개발 (The Development of an Inventory for Measuring the Parenting Self-Efficacy of Korean Mothers)

  • 최형성;정옥분
    • 아동학회지
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    • 제22권3호
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    • pp.1-15
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    • 2001
  • The development of this inventory for measuring the parenting self-efficacy of Korean mothers took place in Seoul with 473 mothers of 5th and 6th grade children. Means, %, ${\chi}^2$, Cramer's V, Cronbach's ${\alpha}$, Split-half Reliability, factor analysis and Pearson's r were used for data analysis. Five parenting self-efficacy factors were extracted from the 37 items developed for this study. Subscales were General Parenting Self-Efficacy, Health, Communication, Education, and Control. Criterion Validity of the 37 items was confirmed by a significant correlation with the Shin's parenting self-efficacy(r=.71). Internal consistency of this scale was high (Cronbach's ${\alpha}=.92$), including internal reliability of subscales. Factor validity was satisfactory at .65 - .86. These results confirm this scale as a valid and reliable measure of the parenting self-efficacy of Korean mothers.

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3-6세 유아를 위한 가정환경자극 척도(EC-HOME)의 타당화 연구 (Validity of the Korean Early Childhood Home Observation for Measurement of the Environment)

  • 김정미;곽금주
    • 아동학회지
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    • 제28권1호
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    • pp.115-128
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    • 2007
  • Participants in this study to develop the Korean version of the Early Childhood Home Observation for Measurement of the Environment(EC-HOME) were 294 3- to 6- year-old children enrolled in a child care center and their parents. Results were that EC-HOME had sufficient internal reliability : Cronbach's ${\alpha}=.80$. Correlation of test-retest ranged from .76~.97. In item-analysis, 9 items with low 'corrected item-total correlation' were removed resulting in 30 items. Factor analysis confirmed 6 factors : 1) Learning Material, 2) Learning Stimulation, 3) Responsivity, 4) Physical Environment, 5) Language Stimulation, and 6) Variety of Materials. Analysis of the relation of children's home environment to their characteristic variances with parents and developmental functioning showed high internal consistency and convergent validity of the sub-scales.

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은평구 장기전세주택 입주민의 주거만족도에 관한 연구 (Analysis of the residential satisfaction of SHift)

  • 허용;홍형옥;이현정
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2011년도 춘계학술발표대회 논문집
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    • pp.256-260
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    • 2011
  • In 2007, Seoul Metropolitan Government introduced new public rental housing policy called SHift that works as rental deposit base. The purpose of this study is to evaluate the residential satisfaction of SHift. This research has shown conclusively that there is a link between the Location of apartment, Internal Premises, External Premises and satisfaction of SHift residents. The main factors of Residential satisfaction of SHift residents are Location of economical factor. The factor analysis of the 12 factors of variable are confirmed by the internal consistency reliability. This analysis is evaluate on discrimination of the correlation between the dwelling circumstance and the residential satisfaction. The economical factor was the main factor among the Independent variables. It can be concluded that the general overview of the Residential Satisfaction of SHift residents satisfaction is "quite good". But there are maby problems on SHift.

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구어적 읽기 이해력 검사의 타당화를 위한 예비연구 : 초등학교 저학년을 중심으로 (A Preliminary Study on the Test of Oral Reading and Comprehension Skill for Lower Level Elementary School Children)

  • 박찬화;김명순
    • 아동학회지
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    • 제30권1호
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    • pp.59-75
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    • 2009
  • The purpose of this study was to verify the validity and reliability for the Test of Oral Reading and Comprehension Skill (Gardner, 2000) for Korean lower level elementary school children. Subjects were 122 first to third grade students, tested individually. The vocabulary and comprehension sub-tests of K-WISC III and the reading comprehension test of Basic Academic Skills Assessment (Kim, 2000) were used to verify concurrent validity. Internal reliability was determined by internal consistency coefficients. Results verified concurrent validity. Test scores differed significantly by grade level. Test reliability was also confirmed. In conclusion, the Oral Reading and Comprehension Skill Test (Gardner, 2000) is reliable and valid for examination of reading comprehension skills for Korean lower level elementary school children.

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Anisotropic continuum damage analysis of thin-walled pressure vessels under cyclic thermo-mechanical loading

  • Surmiri, Azam;Nayebi, Ali;Rokhgireh, Hojjatollah;Varvani-Farahani, Ahmad
    • Structural Engineering and Mechanics
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    • 제75권1호
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    • pp.101-108
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    • 2020
  • The present study intends to analyze damage in thin-walled steel cylinders undergoing constant internal pressure and thermal cycles through use of anisotropic continuum damage mechanics (CDM) model coupled with nonlinear kinematic hardening rule of Chaboche. Materials damage in each direction was defined based on plastic strain and its direction. Stress and strain distribution over wall-thickness was described based on the CDM model and the return mapping algorithm was employed based on the consistency condition. Plastic zone expansion across the wall thickness of cylinders was noticeably affected with change in internal pressure and temperature gradients. Expansion of plastic zone over wall-thickness at inner and outer surfaces and their boundaries demarking elastic and plastic regions was attributed to the magnitude of damage induced over thermomechanical cycles on the thin-walled samples tested at various pressure stresses.

하이브리드 트레프츠 평판 요소의 변분 수식화와 성능 평가 (Variational Formulation of Hybrid-Trefftz Plate Elements and Evaluation of Their Static Performance)

  • 추연석;이병채
    • 대한기계학회논문집A
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    • 제27권2호
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    • pp.302-309
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    • 2003
  • Hybrid-Trefftz plate bending elements are known to be robust and free of shear locking in the thin limit because of Internal displacements fields and linked boundary displacements. Also, their finite element approximation is very simple regardless to boundary shape since all element matrices can be calculated using only boundary integrals. In this study, new hybrid-Trefftz variational formulation based on the total potential energy principle of internal displacements and displacement consistency conditions at the boundary is derived. And flat shell elements are derived by combining hybrid-Trefftz bending stiffness and plane stress stiffness with drilling dofs.

알코올성 간질환자를 대상으로 한 증상개선 측정도구의 타당성 연구 (Study about Validity of Measuring Instrument for Symptoms Improvement on the Alcoholic Hepatitis Patients)

  • 김정은;박상은;이승연;손호영;홍상훈;강창완;김보경;지규용
    • 동의생리병리학회지
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    • 제24권2호
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    • pp.345-351
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    • 2010
  • Alcoholic hepatitis is an acute and severe liver disease associated with high mortality rate. This study was conducted to develop the instrument of criterion for symptoms improvement after temperance. We made the symptoms improvement questionnaire for alcoholic hepatitis patients through reviewing traditional oriental medical literatures and got advices from the advisor committee with delphi technique. The advisor committee on this study was organized by 10 professors of internal medicine of oriental medical colleges nationwide. The questionnaire was composed of questions about 10 symptoms - fatigue, pain, anorexia, abdominal bloat, heaviness of the body, itch, nausea, sleep, dryness in the mouth and stools. We named it Alcoholic Hepatitis Symptoms Improvement Questionnaire(AHSIQ). We surveyed 65 male alcoholic hepatitis patients and checked liver function profile and AHSIQ before and after temperance four times for six weeks. As a result of factor analysis the scales of AHSIQ had content validity and construct validity. And internal consistency reliability was good(Cronbach's alpha=0.768-0.871). The total scale scores were statistically significant in gamma-GTP related validity. We suggest that AHSIQ would be effective for measuring symptoms improvement degree in alcoholic hepatitis patients through further investigations with larger clinical trials.