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논문 기본 정보

자료유형
학술저널
저자정보
이현동 (대구교육대학교) 박병열 (단국대학교) 전재돈 (경북대학교) 이효녕 (경북대학교)
저널정보
한국교원대학교 뇌기반교육연구소 Brain, Digital, & Learning Brain, Digital, & Learning 제14권 제1호
발행연도
2024.3
수록면
1 - 19 (19page)

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The purpose of this study is to verify the validity of the revised STMI, which is a revised and supplemented versionof the Systems Thinking Measuring Instrument (STMI) developed by Lee et al.(2013) for high school students. Forthis purpose, we used data from 475 high school students' responses to 20 Revised STMI questions and 20 STSscale questions. Validity verification includes item response analysis (Item Reliability, Item Map, Infit and OutfitMNSQ, and DIF of male and female groups), exploratory factor analysis (main axis factor analysis using Promax),and confirmatory factor analysis using structural equation model. And central/cross validity verification andcorrelation analysis between the two scales were used. The research results are as follows. First, as a result of theitem response analysis of the Revised STMI 20 questions, Item Reliability was .98 and Infit MNSQ was .84~1.39,and valid results were also analyzed in Item Map and DIF analysis. Second, in the exploratory factor analysis, allsub-questions of the five sub-factors showed factor loading values of .3 or higher, and the reliability of each factorwas .631~.800 and the overall reliability was .863. Third, in the confirmatory factor analysis, all model fit valueswere good (χ2/df: 2.406, CFI: .923, TLI: .908, SRMR: .046, RMSEA: .054), and the convergent validity and crossvalidity were also established. The results showed that the model was suitable. Lastly, in the correlation analysiswith the 20 items of the STS scale, the correlation between all items was .754, and the correlation with STS itemsfor each sub-factor was high, ranging from .426 to .658. Therefore, in the case of the Revised STMI, significantresults were obtained not only in construct validity but also in official validity, and the results of this study showedimproved validity results compared to research results using existing scales. Continuously, additional validationresearch should be conducted so that the Revised STMI can be applied to various groups, including not only highschool students, but also elementary and middle school students, and college students. In addition, ongoingresearch on the relationship between system thinking and other learning-related measures should be activelyconducted using validated instrument.

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