Ludlow J B, Platin E
Diagnostic Sciences and General Dentistry Department, University of North Carolina School of Dentistry, Chapel Hill 27599-7450, USA.
J Dent Educ. 2000 Apr;64(4):269-75.
Self-guided slide/tape (ST) and web page (WP) instruction in normal radiographic anatomy of periapical and panoramic images is compared using objective test performance and subjective preference of freshman dental students. A class of seventy-four students was divided into a group studying anatomy in periapical images using WP and a group studying similar ST material. In a modified cross-over design the groups switched presentation technologies to learn anatomy in panoramic images. Students completed self-administered on-line quizzes covering WP materials and conventional quizzes for ST material. Students also completed a voluntary survey. Mean quiz performance identifying matched anatomic features in PA (n = 26) and panoramic images (n = 35) was excellent (96.9%) and not different between image types (p = 0.12) or presentation technologies (p = 0.81). Students preferred WP for accessibility, ease of use, freedom of navigation, and image quality (p < .01). Student comfort level with the quiz formats of the two technologies was not different (p = 0.11). Students experienced a higher rate of mechanical and logistical problems with ST than with WP technology. While 71 percent of the students preferred WP technology, this preference appears to be related to ease of use and facilitation of flexible learning styles rather than improved didactic performance.
使用客观测试表现和牙科专业大一学生的主观偏好，比较了根尖片和全景片正常放射解剖学的自导式幻灯片/磁带（ST）和网页（WP）教学方式。74名学生被分为两组，一组使用网页学习根尖片的解剖学知识，另一组学习类似的幻灯片/磁带材料。在改良的交叉设计中，两组交换展示技术，学习全景片的解剖学知识。学生完成了涵盖网页材料的在线自我测试以及针对幻灯片/磁带材料的传统测试。学生们还完成了一项自愿调查。在识别根尖片（n = 26）和全景片（n = 35）中匹配解剖特征的测试中，平均成绩优异（96.9%），在图像类型（p = 0.12）或展示技术（p = 0.81）之间没有差异。学生们更喜欢网页，原因在于其易获取性、易用性、导航自由和图像质量（p <.01）。学生对两种技术测试形式的舒适度没有差异（p = 0.11）。与网页技术相比，学生在使用幻灯片/磁带技术时遇到机械和后勤问题的发生率更高。虽然71%的学生更喜欢网页技术，但这种偏好似乎与易用性和促进灵活学习方式有关，而非教学表现的提升。
