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우형택,문연화 대구효성가톨릭대학교 1998 연구논문집 Vol.58 No.2
With respect to the increasing importance of understanding our environmental concerns, this study was conducted to develop the questionnaire for the comprehensive and objective measurement of environmental concerns and test its reliability. The major research methods taken include the design of environmental questionnaire based on literature review and related theories, and the process of increasing the reliability of developed questionnaire through the repetition of reliability analysis. The total of 3 surveys were conducted and the total of 510 persons including diverse sample groups were questionnaired. The SAS PC+ package program was used in the reliability analysis of surveyed data. The first designed questionnaire consisted of 50 items including 25 items related to environmental pollution and 25 items related to nature conservation, reflecting various factors of environmental concerns. The result of the first reliability analysis showed that Cronbach-αfor the total was 0.75. To increase the reliability, items having low correlation with the total were eliminated, corrected, or revised. The reliability of redesigned questionnaire consisting of 46 items was significantly improved to the level of Cronbach-α0.88, the high reliability of measurement. In the second reliability analysis, 11 items were further revised and corrected to develop the questionnaire having the very high reliability. The reliability of the finalized questionnaire was further increased to the level of Cronbach-α0.92.
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우형택,엄붕훈,문연화 한국환경과학회 1999 한국환경과학회지 Vol.8 No.5
This study was conducted to develop the questionnaire for the measurement of environmental attitudes and test its reliability and validity. Development and validation of the 46 survey items that measure environmental attitudes were described. The total of 3 surveys were conducted and the total of 510 persons including diverse sample groups were questionnaired. The SAS PC^+ package program was used in both the reliability analysis and the validity analysis of surveyed data. Results revealed the very high reliability and the high validity of the questionnaire. The reliability of the finalized questionnaire was increased to the level of Cronbach-α 0.92 after the repeated reliability analyses and revisions of the firstly and secondly designed questionnaires. The validity of our questionnaire was sufficiently affirmed through the use and application of factor analysis and known-groups technique.
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