A Study on the Structural Relationship of Learning Content, Knowledge, Attitude, and Cognitive Engagement in Blended Learning for the Beautician National Technical Qualification Course

This study conducted a survey of 243 learners who had taken a blended learning-based certification course at a beauty academy. The collected data were analyzed using SPSS 25.0 and AMOS 25.0 programs to perform frequency analysis, exploratory and confirmatory factor analysis, reliability analysis, and correlation analysis. Structural Equation Modeling (SEM) analysis was conducted to verify the structural relationships among the variables. The results of the study showed that the model fit was acceptable (CFI=.966, RMSEA=.069), and the main findings are as follows. First, the learning content of blended learning had a statistically significant positive (+) effect on learners’ knowledge (β=.651), attitude (β=.637), and cognitive engagement (β=.218). This suggests that a systematic curriculum and easy-to-understand learning content are key antecedents that induce not only the acquisition of major knowledge but also positive learning attitudes and engagement. Second, both knowledge (β=.312) and attitude (β=.453) had a significant positive (+) effect on cognitive engagement. In particular, the influence of attitude on cognitive engagement was relatively greater, indicating that learners’ emotional motivation and proactive attitude are key mechanisms that enhance engagement during practical performance processes. This study demonstrated the structural path in which the qualitative enhancement of learning content in a blended learning environment promotes cognitive engagement through the mediation of knowledge and attitude. These results suggest the necessity of a systematic learning design that combines online and offline elements to maximize the effectiveness of beauty practice education and provide empirical foundational data for establishing teaching and learning strategies that can lead to active learner participation and attitude change.