Vichitvejpaisal P, Sitthikongsak S, Preechakoon B, Kraiprasit K, Parakkamodom S, Manon C, Petcharatana S
Department of Anaesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 7, Thailand.
Med Educ. 2001 Oct;35(10):983-9.
We have developed both a computer-assisted instruction (CAI) multimedia program and a textbook on arterial blood gas interpretation with the same content as formal didactic instruction. A prospective, randomized study was designed to compare the outcomes of self-learning using the software and using the textbook.
80 third-year medical students were randomly allocated to two groups: the CAI (n=40) and text group (n=40). A 30-item, type-K examination was administered as the pre-test. After the pre-test, the volunteers in the CAI group studied the software program, whereas those in the text group spent their time reading the textbook covering the same material. The post-test was held immediately at the end of a full day of study, and 3 weeks later, the final test was performed without prior notice. A P value of <0.05 was considered to be a statistically significant difference.
Students in the text group seemed to fulfil their assignments and improved their scores post-test better than those in the CAI group. After 3 weeks, the final test scores of both groups demonstrated a significant decrease, but showed an insignificant difference between the two groups.
Text-based learning seems to be a convenient method of education where time is limited. However, with more time available, use of software may be as good as the conventional learning method and can be an alternative tool. The computer-assisted instruction program seems to enhance the learning process.
我们开发了一个计算机辅助教学（CAI）多媒体程序和一本关于动脉血气分析解读的教科书，其内容与正规的教学指导相同。设计了一项前瞻性随机研究，以比较使用该软件自学和使用教科书自学的效果。
80名三年级医学生被随机分为两组：CAI组（n = 40）和文本组（n = 40）。进行了一项包含30道题的K型考试作为预测试。预测试后，CAI组的志愿者学习软件程序，而文本组的志愿者则花时间阅读涵盖相同内容的教科书。在一整天的学习结束后立即进行后测试，3周后，在没有事先通知的情况下进行期末考试。P值<0.05被认为具有统计学显著差异。
文本组的学生似乎比CAI组的学生更能完成作业且后测试成绩提高得更好。3周后，两组的期末考试成绩均显著下降，但两组之间差异不显著。
在时间有限的情况下，基于文本的学习似乎是一种便捷的教育方式。然而，如果有更多时间，使用软件可能与传统学习方法一样好，并且可以成为一种替代工具。计算机辅助教学程序似乎能增强学习过程。
