A Study on the Learning Efficiency Measurement for the Multimedia Education

本研究的目的是重新界定教育多媒体的定义，选择适合的内容和应用，以及对多媒体学习效率的定量测量。以下是本研究的成果。(1)美国多媒体先进使用情况调查作为多媒体教育先进国家的美国，对多媒体教育成功使用的例子和提高教育效率的技术进行了调查。(2)使用cd - rom词典进行学习效率的测量使用电子词典（cd - rom词典）和传统词典学习英语单词时，比较它们的学习效率。(3)三维显示的呈现与学习效率研究了采用三维显示进行字符呈现时，字符浮动高度与可读性之间的关系。(4)使用HDTV的呈现效率研究了HDTV显示与传统NTSC显示相比的优势，即通过每个显示向学习者提供心理旋转任务时，学习者的识别时间。因此，HDTV的识别时间比NTSC的识别时间要小，但具有重要意义，特别是当呈现的图像比较复杂时。最后，对上述结果进行归纳，得出多媒体教育学习效率的相关信息。

The aim of this research involves the re-arrangement of the definition of the educational multimedia, its well-suited contents and applications, and the quantitive measurement of the efficiency of learning with multimedia. The followings are the achievments of this research.(1) Survey of Advanced Usage of MultiMedia in the United StatesThe successfully-used examples of multimedia education and the techniques to improve educational efficiency are surveyed in the United States, as an advanced nation of multimedia education.(2) Learning Efficiency Measurement using CD-ROM-Based DictionaryThe electronic dictionary (CD-ROM-based dictionary) and the conventional dictionary are compared in terms of the learning efficiency, when learning the English words with them.(3) Presentation and Learning Efficiency of 3-Dimensional DisplayThe relationship between the floating height of character and the readability are investigated, when 3-D display is used for character presentation.(4) Presentation Efficiency by using HDTVThe advantage of HDTV display is investigated in comparison with the conventional NTSC display, in terms of the learners' recognition time when the mental-rotation task is given to learners via each display. As a result, the recognition time with HDTV presented smaller value than with NTSC with meaningful significance, especially when the presented figures are complicated.Finally, all the above results are generalized to obtain the information on the learning efficiency of multimedia education.