• 한국직업건강간호학회지
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• 제22권1호
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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.

• 대한간호학회지
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• 제46권2호
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• pp.293-304
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• 2016

Purpose: This methodological study was conducted to develop and psychometrically test the Transcultural Self-efficacy scale (TCSE-scale) for nurses. Methods: Initial 41 items for the TCSE-scale were generated based on extensive literature reviews and in-depth interviews with 18 nurses who had experience in caring for foreign patients. Cultural Competence and Confidence model was used as a conceptual framework. Content validity was evaluated by an expert panel. Psychometric testing was performed with a convenience sample of 242 nurses recruited from four general hospitals in the Seoul metropolitan area and Gyeonggi-do province of South Korea. To evaluate the reliability of TCSE-scale, a test-retest reliability and an internal consistency reliability were analyzed. Construct validity, concurrent validity, criterion validity, convergent validity and discriminative validity were used to evaluate the validity. Results: The 25-item TCSE-scale was found to have three subscales-Cognitive, Practical, and Affective domain-explaining 91.5% of the total variance. TCSE-scale also demonstrated a concurrent validity with the Cultural Competence Scale. Criterion-related validity was supported by known-group comparison. Reliability analysis showed an acceptable-to-high Cronbach's alpha-.88 in total, and subscales ranged from .76 to .87. The ICC was .90, indicating that the TCSE-scale has internal consistency and stability of reliability. Conclusion: This preliminary evaluation of the psychometric scale properties demonstrated an acceptable validity and reliability. The TCSE-scale is able to contribute to building up empirical and evidence based on data collection regarding the transcultural self-efficacy of clinical nurses. We suggest further testing of the applicability of TCSE-scale in different settings and community contexts.

• Journal of Preventive Medicine and Public Health
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• 제57권3호
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• pp.279-287
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• 2024

Objectives: This study validated the Vietnamese version of the Disaster Adaptation and Resilience Scale (DARS) for use in vulnerable communities in Vietnam. Methods: This was a cross-sectional study involving 595 adults from 2 identified communities. The original DARS assessment tool was translated, and the validity and reliability of the Vietnamese version of DARS (V-DARS) were assessed. The internal consistency of the overall scale and its subscales was evaluated using Cronbach's alpha and McDonald's omega reliability coefficients. Confirmatory factor analysis (CFA) was employed to evaluate its construct validity, building upon the factor structure identified in exploratory factor analysis (EFA). Construct validity was assessed based on convergent and discriminant validity. Results: Following the established criteria for EFA, 8 items were removed, resulting in a refined V-DARS structure comprising 35 items distributed across 5 distinct factors. Both alpha and omega reliability coefficients indicated strong internal consistency for the overall scale (α=0.963, ω=0.963) and for each of the 5 sub-scales (all>0.80). The CFA model also retained the 5-factor structure with 35 items. The model fit indices showed acceptable values (RMSEA: 0.072; CFI: 0.912; TLI: 0.904; chi-square test: <0.01). Additionally, the convergent and discriminant validity of the V-DARS were deemed appropriate and satisfactory for explaining the measurement structure. Conclusions: Our findings suggest that the V-DARS is a valid and reliable scale for use within vulnerable communities in Vietnam to assess adaptive responses to natural disasters. It may also be considered for use in other populations.

• 대한소아치과학회지
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• 제49권1호
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• pp.14-24
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• 2022

이 연구의 목적은 디지털 치열 모형에서 치아 폭경, 볼튼 비율, 수평 피개, 수직 피개를 포함한 교정적 측정의 타당성을 확인하는 것이다. 만 12 - 18세의 환자를 대상으로 세가지 형태의 치열 모형을 획득하였다. 기존의 석고 모형을 형성하였고, DOF freedom HD 모형 스캐너를 통해 디지털 모형으로 변환하였다. 그리고 CS3600 구강 스캐너로 디지털 모형을 형성하였다. 각 모형에서 측정 시행 후, 급내 상관 계수를 통해 계측의 신뢰성과 재현성을 확인하였으며, 대응 표본 t 검정을 사용하여 타당성을 평가하였다. 결과적으로 모든 군에서 급내 상관계수는 0.750을 초과하여 연구자 내 신뢰성과 연구자 간 재현성이 있음을 확인하였다. 모형 스캔한 군은 전체 및 전치 볼튼 비율, 수평 및 수직 피개에서 타당성을 보였다. 구강 스캔한 군은 전치 볼튼 비율, 수평 피개에서 타당성을 보였다. 구강 스캔한 디지털 모형을 이용한 계측은 인상 채득에 어려움이 있는 소아 청소년에게 고려할 수 있는 대안이다. 하지만 임상에서 이를 교정적 분석에 이용할 경우 오차를 고려한 적용이 필요하다.

• 한국데이타베이스학회:학술대회논문집
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• 한국데이타베이스학회 2010년도 춘계국제학술대회
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• pp.223-234
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• 2010

This study is aimed at proposing a new research model in which application store intention to acceptance influence factors (i.e.. facilitating condition, mobile computing self-efficacy, service compatibility, and system quality) affect TAM (i.e., perceived usefulness and perceived ease of use) positively, leading to application store intention to acceptance eventually. This study developed a research model to explain the use of Apple's App Store, and collected 228 survey responses from the undergraduate students who had experiences with such application store services as game and personal information management application download. To prove the validity of the proposed research model, PLS analysis is applied with valid 228 questionnaires. By employing PLS technique, the measurement reliability and validity of research variables are tested and the path analysis is conducted to do the hypothesis testing. In brief, the finding of this study suggests that application store intention to acceptance influence factors affect TAM positively, and application store intention to acceptance as well.

• 전자공학회논문지A
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• 제33A권11호
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• pp.112-119
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• 1996

Impact ionization model in GaAs has been presented by modified keldysh formula with two sets of power exponent of 7.8 and 5.6 in study. Impact ionization rate is derived from fermil's golden rule and ful lenergy band stucture based on empirical pseudopotential method. Impact ionization rates show anisotropic property in low energy region (<3eV), but isotropic in high energy region (3>eV). Full band monte calo simulator is coded for investigating the validity of the GaAs impact ionization model, and validity is checked by comparing impact ionization coefficients with experimental values and ones in anisotropic model. Valley transitions to energy alteration are explained by investigating electron motion in brillouin zone for full band model to electric field variation.

• 디지털융복합연구
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• 제18권11호
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• pp.347-354
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• 2020

이 연구의 목적은 W치과대학의 역량기반 치의학 교육과정 개편을 위한 역량모델을 개발하는데 있다. 이를 위해 이 연구방법은 역량모델 개발절차를 3단계로 진행하였다. 역량모델 준비 단계는 구성원의 인식조사를 분석하고, 개발단계는 역량수준 등을 개발하였다. 평가단계는 전문가에게 내용타당도를 검증받았다. 그 결과 내용타당도지수(CVI: content validity index)는 .91로 높은 CVI를 나타났으며, 대학차원의 공통역량인 4개의 핵심역량과 전공역량인 직무역량을 연계한 역량모델을 개발하였다. 이러한 절차를 걸쳐 개발된 W치과대학의 역량모델 개발 사례는 앞으로 역량모델 개발이 필요한 연구에 기초자료를 제공할 수 있으며, W치과대학의 역량 기반 교육과정 개편에도 반영할 예정이다.

• 한국과학교육학회지
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• 제37권4호
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• pp.611-624
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• 2017

이 연구의 목적은 고등학생들의 시스템 사고를 측정하는 분석하는 도구로 Iceberg(IB) 모델을 적용하고, 시스템 사고 평가를 위한 루브릭을 활용한 IB 모델 활동 결과 분석 방법을 제시하며 그 효과를 검증하는 것이다. 문헌 분석을 통해 IB 모델과 시스템 사고 평가를 위한 루브릭의 활용에 대한 이론적 근거를 조사하였다. 그리고 6명의 고등학교 학생에게 극지방 기후 변화와 관련된 주제에 대하여 IB 모델 활동을 실시하였으며 활동 과정 중 비구조화된 면담을 통해 학생들의 시스템 사고를 조사하였다. 또한 IB 모델을 활용한 시스템 사고 분석 결과에 대한 효과를 검증하기 위하여 시스템 사고 측정 도구를 활용한 정량적 검사도 실시하였다. IB 모델의 분석은 Hung(2008)에 의해 개발된 시스템 사고 평가를 위한 루브릭을 활용하여 분석하였으며 분석한 결과는 지구과학교육 전문가 2인에게 검토를 받아 타당도와 신뢰도를 확인하였다. 그리고 루브릭 결과와 시스템 사고 측정 도구 검사 결과에 대한 상관관계 분석을 통해 타당도를 재확인하였다. 연구 결과 6명의 학생은 IB 모델을 활용하여 자신들이 가지고 있는 사고를 구체적으로 잘 표현하였으며 루브릭을 활용한 시스템 사고 분석 결과 학생들은 17~35점까지의 분포를 보여주었다. 또한 시스템 사고 측정 도구 결과와 상관관계를 분석한 결과 Pearson 상관계수가 유의수준 .05에서 .856으로 매우 높은 상관을 보여주었다. 이 연구에서 제시한 IB 모델을 적용하면 학생 스스로 시스템 사고를 잘 표현할 수 있으며, 루브릭을 활용한 시스템 사고 분석 결과는 타당도와 신뢰도를 가지는 것으로 판단된다. 이러한 연구 결과를 바탕으로 앞으로의 과학 교육에서 시사점과 시스템 사고 연구의 방향을 제안하였다.

• 대한가정학회지
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• 제46권6호
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• pp.101-114
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• 2008

The purpose of this study was to develop a self-report scale measuring dysfunctional communication behaviors that Korean husbands and wives may use during marital fights. Based on the four concepts of criticism, contempt, defensiveness, and stonewalling proposed by Gottman(1994a), an initial pool of 38 items was developed. Through expert reviews of the 38 items to assess content validity, preliminary 30 items were selected. Using a sample of 89 married couples who were living in Susan, Korea, we conducted item analyses and exploratory factor analyses with the 30 items. These analyses yielded a final 19-item, four-factor scale : criticism(5 items), contempt(5 items), defensiveness(5 items), and stonewalling(4 items). The internal consistency estimates for these subscales were satisfactory. Finally, using another sample of 228 wives, we conducted confirmatory factor analysis to confirm cross validity of the 19-item, four-factor model. The result indicated that this model fitted the data reasonably well. All standardized factor loadings were significant in this model. The results of this study supported reliability and validity of this scale.

• 한국건축시공학회지
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• 제8권6호
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• pp.155-160
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• 2008

The BTL project, 4 years since its operation. has benchmarked the PFI Project in Japan and has been introduced. Given the evaluation step to select a preferred bidder, in a technological factor, the basic plans are corrected and complemented, whereas in a price factor, the low price bidding system is being enforced. There is concern that how to select preferred bidders and how to operate project costs during operation and management period may be problematic. Thus, in this study, using the Analytic Hierarchy Process, the method of deciding the priority to select preferred bidders in an early stage of the project and the evaluation model to evaluate the validity of BTL project expenses in process of project enforcement are established. Targeting the group composed of experts who have experiences in the BTL project. Then, the levelling of evaluation factors and grouping have been carried out as following : LCC analysis and disbursement for government including two more detailed factors.