멀티미디어 학습자료 설계를 위한 인지부하 설문의 민감도 분석 및 학습 성취에 대한 예언변수 분석 = Sensitivity of Cognitive Load Factors and Prediction for Learning Achievement upon the Levels of Task in Multimedia Learning

다국어 초록 (Multilingual Abstract)

This study was to identify the relationships among the five cognitive load factors: 1) task demand, 2) mental effort, 3) perceived task difficulty, 4) self-evaluation, and 5) usability of the learning material. Particularly, for this study it was a purpose of testing the sensitivity of the cognitive load survey instrument by the different levels of task difficulties. 212 students were participated into the lable. Two different levels of task were presented to the participants to identify how well the differences of task difficulty is sensitive. Specifically, this study set up three sub-research goals. First, it was to evaluate the reliability of each cognitive load factor. For the analysis Cronbach`s alpha and construct reliability were tested. The result revealed that the cognitive load factor survey showed acceptable reliability. Second, a latent mean comparison was conducted. The result showed that the perceived task difficulty and self-evaluation had significant an impact on the cognitive load factors. Third, a multiple-regression was applied to measure what cognitive load factors may have impact on the task performance. When participants were in an easy task, the perceived task difficulty was a significant variable to predict the levels of learning achievement. However, when participants were in a hard task, the self-evaluation showed a significant prediction power on the learning achievement.

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