• 한국수학교육학회지시리즈C:초등수학교육
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• 제17권2호
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• pp.159-171
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• 2014

본 연구는 초등학생용 공간시각화 검사지를 개발하고 표준화하는데 목적이 있다. 이를 위하여 총 24문항으로 구성된 초등학생용 공간시각화 검사지를 개발하였으며, 초등학생 1482명을 대상으로 검사를 실시하여 신뢰도와 타당도를 분석하였다. 분석결과는 다음과 같다. 첫째, 초등학생용 공간시각화 검사지의 문항내적일관성 신뢰도는 Cronbach's ${\alpha}$=.794로 양호한 것으로 나타났다. 둘째, 검사지의 24문항에 대한 타당도를 검증하기 위하여 확인적 요인분석을 한 결과, 검사지의 타당도가 양호한 것으로 판단되었다. 셋째, 검사지 24문항에 대한 문항난이도는 .200에서부터 .886으로 나타났으며, 평균 문항난이도는 .544인 것으로 나타났다. 이상의 연구 결과로 볼 때, 본 연구에서 개발한 초등학생용 공간시각화 검사지는 신뢰도와 타당도를 확보한 것으로 보이므로, 초등학생들의 공간시각화 능력을 측정하는데 활용할 수 있을 것이다.

• 한국수학교육학회지시리즈A:수학교육
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• 제56권4호
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• pp.407-434
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• 2017

The purpose of this study is to develop and verify the TPACK measurement tool for middle and high school mathematics teachers in the Korean context. Also, by clarifying the relationship between subordinate factors of Mathematics teachers' TPACK, an attempt was made to provide suggestions on the designs and directions for the in-service and pre-service teacher education and the programs for improving mathematics teachers' TPACK in the future. In order to achieve this goal, TPACK factors of mathematics teachers were extracted by reviewing literature on PCK, MKT, and TPACK. Then, content validity, basic statistical survey, reliability verification, exploratory factor analysis, confirmatory factor analysis, and structural equation model verification were conducted sequentially. At first, preliminary analysis was carried out on 79 mathematics teachers, and 76 items excluding the items with extreme value and reliability were included in the basic statistical analysis. And secondly, an exploratory factor analysis was conducted on 376 mathematics teachers, and this instrument consisted of 7 subordinate factors(CK, PK, TK, PCK, TCK, TPK, TPACK) and 61 items. Also by conducting confirmatory factor analysis and structural equation model test with 254 mathematics teachers, the measurement tool was confirmed the validity and reliability through statistically significant analysis. Then, the importance of integrated knowledge was confirmed by looking at the relationship between the TPACK factors of in-service mathematics teachers. The integrated knowledge(PCK, TCK, TPK) has played a crucial role in the formation of TPACK rather than the knowledge of CK, PK, and TK alone. Finally, the validity of TCK was confirmed through the structural equation modeling of TPACK. TCK not only directly affected TPACK, but also indirectly through TPK. According to these affirmative results, this measurement tool is claimed to be suitable for measuring the factors of Mathematics teachers' TPACK, and also the structural equation model can be regarded as a suitable model for analyzing the structural relationship of mathematics teachers' TPACK.

• 한국산학기술학회논문지
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• 제17권1호
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• pp.508-517
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• 2016

본 연구는 한국어판 자살극복력 측정도구의 신뢰도와 타당도를 검증하고자 수행되었다. 연구방법은 방법론적 연구로 2012년 9월부터 12월까지 전북지역 266명의 대학생을 대상으로 자료수집을 실시하였다. 준거도구로 Osman 등(2004)의 Suicide Resilience Inventory-25를 이용하였고, 확인적 요인분석과 Cronbach's alpha 계수를 확인하였다. 확인적 요인분석결과 19문항의 요인적재량의 범위는 .442에서 .767, RMSEA<.08, $CFI{\geq}.9$로 타당도를 확보하여, 최종 19문항 3개의 하위 요인으로 이루어진 한국어판 자살극복력 측정도구(SRI-K)를 최종모형으로 선택하였다. SRI-K의 Cronbach's alpha 값은 .943이었다. SRI-K는 자살극복력을 측정하는데 신뢰도와 타당도가 있는 도구임이 검증되었다. 향후 자살극복력을 측정하는데 SRI-K가 보다 유용하게 활용될 수 있을 것을 기대한다.

• 대한간호학회지
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• 제45권1호
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• pp.129-138
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• 2015

Purpose: The purpose of this study was to report the instrument modification and validation processes to make existing health belief model scales culturally appropriate for Korean Americans (KAs) regarding colorectal cancer (CRC) screening utilization. Methods: Instrument translation, individual interviews using cognitive interviewing, and expert reviews were conducted during the instrument modification phase, and a pilot test and a cross-sectional survey were conducted during the instrument validation phase. Data analyses of the cross-sectional survey included internal consistency and construct validity using exploratory and confirmatory factor analysis. Results: The main issues identified during the instrument modification phase were (a) cultural and linguistic translation issues and (b) newly developed items reflecting Korean cultural barriers. Cross-sectional survey analyses during the instrument validation phase revealed that all scales demonstrate good internal consistency reliability (Cronbach's alpha=.72~.88). Exploratory factor analysis showed that susceptibility and severity loaded on the same factor, which may indicate a threat variable. Items with low factor loadings in the confirmatory factor analysis may relate to (a) lack of knowledge about fecal occult blood testing and (b) multiple dimensions of the subscales. Conclusion: Methodological, sequential processes of instrument modification and validation, including translation, individual interviews, expert reviews, pilot testing and a cross-sectional survey, were provided in this study. The findings indicate that existing instruments need to be examined for CRC screening research involving KAs.

• 간호행정학회지
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• 제22권1호
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• pp.11-21
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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 nurses' attitudes toward delegation and preparedness to delegate (APD). Methods: The Korean version of APD was developed through forward-backward translation methods. Internal consistency reliability, criterion validity, and construct validity using exploratory and confirmatory factor analysis were conducted using IBM SPSS Statistics 19 and AMOS 20.0. Survey data were collected from 161 nurses working in 2 general hospitals. Results: The Korean version of APD showed Cronbach's alphas of .68 and .85. Factor loadings of the 8 attitude items on the 3 subscales ranged from .60 to .86 and the 15 preparedness items on the 4 subscales ranged from .47 to .90. The model of 3 subscales for the Korean nurses' attitude toward delegation and the model of 4 subscales for the Korean nurses' preparedness to delegate were both validated by confirmatory factor analysis(NC<3, CFI>.90, RMSEA<.10). Criterion validity compared to job satisfaction showed significant correlation. Conclusion: The findings of this study demonstrate that this modified Korean version of APD is applicable for measuring Korean nurses' attitude toward delegation and preparedness to delegate.

• 성인간호학회지
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• 제24권6호
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• pp.580-587
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• 2012

Purpose: To develop and test the validity and reliability of the Korean version of outcome expectations-2 for exercise. Methods: The Korean version of outcome expectations for exercise-2 was developed through forward-backward translation techniques. Content, criterion, and construct validity using confirmatory factor analysis and an internal consistency reliability were conducted. Survey data were collected from 200 older adults living in a community. Results: The Korean version of outcome expectations for exercise-2 had factor loadings of the 13 items ranged from .20 to .76, and was validated by confirmatory factor analysis (CFI=.829, NFI=.754, RMSEA=.086). Also there was a reliable internal consistency with a Cronbach's ${\alpha}$ for the positive domain of outcome expectations for exercise scale-2 of .73. Negative domain, however, reported slightly low Cronbach's ${\alpha}$ of .63. Conclusion: The findings of this study demonstrated that the Korean version of outcome expectations for exercise-2 had satisfactory validity to measure expectations regarding exercise among older adults in Korea. Negative domain, however, should be retested to verify reliability for the further study.

• 한국의류학회지
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• 제31권8호
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• pp.1168-1179
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• 2007

The objective of this research is to validate the BRQ(Brand Relationship Quality) Construct perceived by fashion product consumers. In order to establish and verify the BRQ scale, qualitative survey and quantitative survey were conducted together. 1592 copies of questionnaire were distributed to women in their 20s to 40s living in Seoul and other metropolitan areas from Dec. 26, 2005 to Jan. 8, 2006, and 723 copies of them were used for statistical data. Samplel(n=482)was used for empirical analysis, and sample2(n=241) was used for cross validity test. The data was analyzed using Exploratory Factor Analysis, Confirmatory Factor Analysis, and Pearson's Correlation Analysis. BRQ emerged from exploratory factor analysis as the hierarchical construct composed of six facets including 'self-connective attachment', 'symbol/mystery', 'trust', 'nostalgia', 'intimacy', and 'knowledge'. As the fit of this structural model was not good as a result of Confirmatory Factor Analysis, it was revised to have better fitting. Finally, empirical survey results indicate the hierarchical construct consisting of eight distinct BRQ facets including 'love/commitment', 'self-connection', 'symbol', 'mystery', 'trust', 'nostalgia', 'intimacy', and 'knowledge' as best representing the final 39item BRQ Scale. Reliability, construct validity, and cross validity of the construct were verified.

• 대한간호학회지
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• 제47권5호
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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.

• 한국의류학회지
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• 제33권9호
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• pp.1419-1429
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• 2009

This study tests the validity of the Susceptibility of Global Consumer Culture (SGCC) Scale that is composed of three dimensions, conformity to consumption trend, quality perception, and social prestige, on Korean consumers. The study also identifies the relationships with consumer susceptibility to interpersonal influence and attitude toward purchasing global fashion brands. Utilizing the convenience sampling method, college students aged over 20 living in the Seoul metropolitan area were selected. Three hundred questionnaires were used in the statistical analysis, exploratory and confirmatory factor analysis, paired t test, and path analysis using structural equation modeling. Confirmatory factor analysis revealed that the SGCC scale measured by three dimensions fit well for young Korean consumers. Path analysis showed that identical conformity positively influences all three dimensions of the SGCC scale and that informational conformity positively influences purchasing intention toward global fashion brands. Among the three dimensions of SGCC, quality perception and social prestige positively influence purchasing intention toward global fashion brands.

• 대한간호학회지
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• 제49권1호
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• pp.80-91
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• 2019

Purpose: This study attempted to develop a scale that measures the level of patients' recognition of the nurses' care, based on Watson's caring theory, and confirmed its reliability and validity. Methods: The items were developed through a literature review and an expert content validity test. The questionnaires were administered to 285 inpatients of internal medicine and surgical units at two general hospitals. Construct validity was tested using exploratory and confirmatory factor analysis, and reliability was tested using Cronbach's alpha. Results: This process resulted in a preliminary scale composed of 34 items; We used item analysis and five exploratory factor analyses, and consequently selected 14 items composed of three factors (respect, genuineness, and relationality). The confirmatory factor analysis verified the model fit and convergent and discriminant validity of the final items; criterion validity was confirmed with the positive correlation with the measurement scale of the patient-perceived quality of nursing. The overall scale reliability had a Cronbach's alpha of .92, which indicated internal consistency and reliability. Conclusion: The developed scale showed content, construct, and criterion validity, and reliability, as well as convergent validity for each item and discriminant validity between the factors. This makes it suitable for use in a diverse range of future studies on nurse communication using structural equation models.