종단 문항반응이론 기반 성장모형의 적용을 통한 중학생의 진로성숙도 변화 분석

Abstract

With an emphasis on career education, career maturity has emerged as an important variable that, prompts analyses of its growth and changes. Previous studies examining career maturity longitudinally used raw scores as variables, which inevitably included errors. However, the application of the longitudinal item response theory allows for error-free growth modeling. In this study, longitudinal measurement invariance was confirmed by applying item response theory, and the feasibility of simultaneous analyses of items and information functions was demonstrated. In addition, to understand the changes in students' career maturity, a multi-group analysis by gender was conducted along with a linear growth model based on the longitudinal item response theory, which is a longitudinal extension of the item response theory. The results indicated that the items on the career maturity scale were generally acceptable. However, there was a lack of information to measure high levels of career maturity among first-year middle students. Career maturity in middle school exhibited a linear declining trend. In the multi-group analysis, female students showed lower initial levels than male students, but the decline was less pronounced. An interpretation and discussion of the research results, along with the limitations and suggestions for future research, are provided.